Portland, Oregon Weather Conditions

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Current Conditions

  • 69°
  • Clear
  • Wind: Calm
  • Humidity: 51%
  • Visibility: 10.0 miles
  • Dew Point: 50°
  • Pressure: 30.01 in. 0

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Next 12 Hours

3  am
6  am
9  am
12  pm
3  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
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73°
68°
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Clear
  • High: 102 °
  • Low: 65 °
  • Clear
  • Friday
  • Clear
  • High: 100 °
  • Low: 64 °
  • Clear
  • Saturday
  • Partly Cloudy
  • High: 96 °
  • Low: 63 °
  • Partly Cloudy
  • Sunday
  • Clear
  • High: 93 °
  • Low: 61 °
  • Clear
  • Monday
  • Partly Cloudy
  • High: 90 °
  • Low: 60 °
  • Partly Cloudy

Forecast for Portland, Oregon

Updated: 9:12 PM PDT on July 29, 2015

Heat advisory in effect until 9 PM PDT Friday...
  • Tonight

    Clear. Lows 60 to 65. North wind 5 to 10 mph.

  • Thursday

    Sunny. Highs 95 to 100. North wind 5 to 10 mph.

  • Thursday Night

    Clear. Lows 60 to 65. Northwest wind 5 to 15 mph becoming light after midnight.

  • Friday

    Sunny. Highs 95 to 100. North wind 5 to 10 mph.

  • Friday Night

    Mostly clear. Lows 60 to 65. Northwest wind 5 to 15 mph.

  • Saturday

    Mostly sunny. Highs 90 to 95.

  • Saturday Night

    Mostly clear. Lows around 60.

  • Sunday

    Mostly sunny. Highs 90 to 95.

  • Sunday Night

    Mostly clear. Lows 55 to 60.

  • Monday

    Mostly sunny. Highs 85 to 90.

  • Monday Night

    Mostly clear. Lows 55 to 60.

  • Tuesday

    Mostly sunny. Highs around 85.

  • Tuesday Night

    Mostly clear. Lows around 55.

  • Wednesday

    Mostly sunny. Highs 80 to 85.

Severe Weather Alert Descriptions

 Heat Advisory  Statement as of 4:14 PM PDT on July 29, 2015


... Heat advisory remains in effect until 9 PM PDT Friday for the
Oregon Coast Range... Willamette Valley... .Columbia River gorge and
Upper Hood River Valley...

A heat advisory remains in effect until 9 PM PDT Friday.

* Timing: Wednesday through at least Friday.

* Duration uncertainty: 90f to 95f temperatures will likely
persist into the weekend... and possibly into early next week.

* High temperatures: 95f to 102f. Hottest in the central and
southern Willamette Valley and central Columbia River gorge.

* Low temperatures: 60f to 65f.

* Locations include: Eugene... Springfield... Corvallis...
Albany... Vernonia... Salem... McMinnville... Hillsboro...
Portland... Oregon City... Gresham... Veneta... Vancouver...
Battle Ground... Washougal... ODell

* impacts: do not leave children and pets unattended in
automobiles.

Precautionary/preparedness actions...

Take extra precautions if you work or spend time outside. When
possible... reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency... call 9 1 1.






 Fire Weather Warning  Statement as of 2:45 PM PDT on July 29, 2015


... Red flag warning now in effect until 11 PM PDT Friday for
hot... dry... and unstable conditions combined with dry fuels for
fire weather zones or604... or605... or606... or607 and or608...

* affected areas... this includes Mt Hood National Forest west of
the Cascade crest... Willamette National Forest west of the
Cascade crest... and the Willamette Valley and adjacent
foothills.

* Timing... this afternoon through Friday evening.

* Stability... mid level Haines 6 conditions continuing through
Friday.

* Relative humidity... 10 to 20 percent in many areas. Overnight
recoveries will be limited along and above thermal belts.

* Temperatures... generally 95 to 100 over The Lowlands... and 80s
to low 90s in the higher elevations.

* Impacts... the combination of an increasingly hot... dry... and
unstable environment and very dry fuels may result in rapid
growth of new or existing fires.

Precautionary/preparedness actions...

A red flag warning means that critical fire weather conditions
are either occurring now... or will shortly. A combination of the
above conditions can contribute to extreme fire behavior.





Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Southwest Portland, Portland, OR

Updated: 3:00 AM PDT

Temperature: 74.3 °F Dew Point: 49 °F Humidity: 41% Wind: North at - Pressure: 30.11 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Portland - West Hills, Portland, OR

Updated: 3:05 AM PDT

Temperature: 72.5 °F Dew Point: - Humidity: - Wind: NW at 5.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:00 AM PDT

Temperature: 75.6 °F Dew Point: 50 °F Humidity: 40% Wind: North at - Pressure: 30.09 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:01 AM PDT

Temperature: 70.7 °F Dew Point: 51 °F Humidity: 49% Wind: North at - Pressure: 30.09 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:01 AM PDT

Temperature: 77.0 °F Dew Point: 48 °F Humidity: 35% Wind: North at - Pressure: 29.79 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Hillsdale, Portland, OR

Updated: 2:54 AM PDT

Temperature: 73.7 °F Dew Point: 46 °F Humidity: 38% Wind: NE at 1.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Lair Hill, Portland, OR

Updated: 3:05 AM PDT

Temperature: 74.3 °F Dew Point: 43 °F Humidity: 32% Wind: NNW at 1.6 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Hillsdale, Portland, OR

Updated: 2:58 AM PDT

Temperature: 71.8 °F Dew Point: 47 °F Humidity: 41% Wind: NW at 3.7 mph Pressure: 29.79 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Bridlemile, Portland, OR

Updated: 2:58 AM PDT

Temperature: 73.4 °F Dew Point: 46 °F Humidity: 38% Wind: NE at 9.9 mph Pressure: 29.85 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:01 AM PDT

Temperature: 68.4 °F Dew Point: 49 °F Humidity: 49% Wind: North at - Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET, Portland, OR

Updated: 2:47 AM PDT

Temperature: 72 °F Dew Point: 47 °F Humidity: 41% Wind: Calm Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Downtown Portland, Portland, OR

Updated: 3:00 AM PDT

Temperature: 75.6 °F Dew Point: 47 °F Humidity: 36% Wind: North at - Pressure: 29.88 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Multnomah Village North, Portland, OR

Updated: 2:52 AM PDT

Temperature: 73.6 °F Dew Point: 47 °F Humidity: 39% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: N of Bridlemile School, Portland, OR

Updated: 3:03 AM PDT

Temperature: 74.5 °F Dew Point: 46 °F Humidity: 36% Wind: NE at 2.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Hoyt Arboretum, Portland, OR

Updated: 3:03 AM PDT

Temperature: 71.5 °F Dew Point: 46 °F Humidity: 40% Wind: SSE at 2.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Westerly, NW Portland, Portland, OR

Updated: 2:56 AM PDT

Temperature: 72.8 °F Dew Point: 48 °F Humidity: 41% Wind: Calm Pressure: 29.96 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Downtown, Portland, OR

Updated: 3:00 AM PDT

Temperature: 73.9 °F Dew Point: 50 °F Humidity: 43% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Brooklyn, Portland, OR

Updated: 2:49 AM PDT

Temperature: 75.2 °F Dew Point: 45 °F Humidity: 34% Wind: NNW at 1.3 mph Pressure: 29.48 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Hillside, Portland, OR

Updated: 3:00 AM PDT

Temperature: 73.2 °F Dew Point: 47 °F Humidity: 39% Wind: North at - Pressure: 29.81 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Pearl District, Portland, OR

Updated: 3:00 AM PDT

Temperature: 76.8 °F Dew Point: 48 °F Humidity: 35% Wind: North at - Pressure: 29.83 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Sylvan Highlands, Portland, OR

Updated: 3:05 AM PDT

Temperature: 72.0 °F Dew Point: 45 °F Humidity: 38% Wind: WNW at 3.4 mph Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Downtown, Portland, OR

Updated: 3:01 AM PDT

Temperature: 73.9 °F Dew Point: 52 °F Humidity: 46% Wind: North at - Pressure: 30.05 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: South Burlingame, Portland, OR

Updated: 3:05 AM PDT

Temperature: 73.4 °F Dew Point: 46 °F Humidity: 38% Wind: Calm Pressure: 29.65 in Hourly Precipitation: 1.63 in Heat Index: 77 °F Graphs

Location: Buckman, Portland, OR

Updated: 3:00 AM PDT

Temperature: 75.0 °F Dew Point: 47 °F Humidity: 37% Wind: North at - Pressure: 29.87 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:00 AM PDT

Temperature: 72.1 °F Dew Point: 50 °F Humidity: 46% Wind: North at - Pressure: 30.10 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:00 AM PDT

Temperature: 69.3 °F Dew Point: 48 °F Humidity: 47% Wind: North at - Pressure: 30.08 in Hourly Precipitation: - Heat Index: - Graphs

Location: Reed, Portland, OR

Updated: 3:00 AM PDT

Temperature: 75.9 °F Dew Point: 57 °F Humidity: 51% Wind: North at - Pressure: 29.86 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Richmond / Stripling Weather Network, Portland, OR

Updated: 2:54 AM PDT

Temperature: 69.1 °F Dew Point: 50 °F Humidity: 51% Wind: Calm Pressure: 29.95 in Hourly Precipitation: - Heat Index: - Graphs

Location: Portland Rowing Club, Portland, OR

Updated: 3:05 AM PDT

Temperature: 70.8 °F Dew Point: 54 °F Humidity: 55% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:00 AM PDT

Temperature: 68.9 °F Dew Point: 48 °F Humidity: 46% Wind: North at - Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Waverleigh Heights, Portland, OR

Updated: 3:01 AM PDT

Temperature: 66.7 °F Dew Point: 51 °F Humidity: 57% Wind: Calm Pressure: 29.98 in Hourly Precipitation: - Heat Index: - Graphs

Location: West Slope, Portland, OR

Updated: 3:03 AM PDT

Temperature: 64.0 °F Dew Point: 50 °F Humidity: 60% Wind: Calm Pressure: 29.71 in Hourly Precipitation: - Heat Index: - Graphs

Location: Richmond, Portland, OR

Updated: 3:00 AM PDT

Temperature: 69.6 °F Dew Point: 51 °F Humidity: 51% Wind: North at - Pressure: 30.06 in Hourly Precipitation: - Heat Index: - Graphs

Location: Northwest District, Portland, OR

Updated: 3:01 AM PDT

Temperature: 73.9 °F Dew Point: 48 °F Humidity: 40% Wind: North at - Pressure: 29.91 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Irvington, Portland, OR

Updated: 3:05 AM PDT

Temperature: 69.4 °F Dew Point: 51 °F Humidity: 52% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
920 PM PDT Wednesday Jul 29 2015 


Synopsis...strong upper level high pressure continues to remain over 
the region bringing additional warming to the region tomorrow. The 
hottest temperatures will likely occur on Thursday. Friday will be 
similar with only gradual cooling expected through the weekend and 
the start of next week. 


&& 


Update...not much new to talk about this evening. It remains hot 
across The Lowlands with 9 PM temperatures ranging from 82 in 
Hillsboro to 88 at Salem. Cooling this evening will continue to be 
slow with a very weak onshore gradient. Expect overnight lows to be a 
few degrees warmer than last night...in the low to middle 60s. Only 
clouds to speak of now are hugging the north Oregon coast and do not 
expect any significant cloud development overnight. Afternoon highs 
tomorrow should be a couple of degrees warmer than today with 
widespread 100 degrees possible in the Willamette Valley. No 
significant updates needed to the forecast this evening. Bowen 


Short term (previous discussion)...today through Saturday...the well 
advertised warming has materialized with surface temperatures this 
afternoon ranging from 10f to 15f warmer than this time yesterday. 
Visible satellite shows clear skies across the region this afternoon 
with the exception of a thin band of marine stratus moving south over 
the Washington coastal waters and just onshore along the Long Beach 
peninsula. Only a few minor nudges to the overall temperature 
forecast for the next few days as forecast models remain in good 
agreement with respect to 850 mb temperatures warming a few degrees 
tomorrow...before starting to slightly cool with lowering 500 mb 
heights into the weekend. This means that Thursday remains on track 
as the warmest temperatures of this stretch for many locations. 
However...despite some slightly stronger onshore flow on Friday...the 
cooling trend will be gradual with temperatures remaining in the 90s 
inland through the weekend. As a result...extended the heat advisory 
for the lower Columbia/I-5 corridor in Cowlitz County through Friday 
evening. By Friday and Saturday...expect some increasing middle/high 
level moisture to work into the region from the south. With limited 
elevated instability and a weak shortwave embedded in the flow to 
potentially serve as a trigger...elected to maintain the slight 
chance thunder mention for the Lane County Cascades to account for 
the uncertainty despite the fact that the best chances for thunder 
will remain outside of our forecast area. Cullen 


&& 


Long term (previous discussion)...Saturday night through 
Wednesday...12z GFS and European model (ecmwf) both show the upper level ridge 
remaining over the region through Sunday. Temperatures will linger in 
the lower 90s...until models have an upper level trough set up over 
southwestern Canada by Monday...which will be a transitory day as 
monsoonal moisture creeps northward bringing a threat for Cascade 
thunderstorms. The 12z GFS shows a deeper upper low than the 12z 
European model (ecmwf)...but overall we should still see increasing onshore flow and a 
gradual cooling trend lasting through the middle of next week. High 
temperatures will finally drop back to near normal by Tuesday. The 
Lane County Cascades will see the main threat for mountain 
thunderstorms Monday through Tuesday...but could see some 
thunderstorms over the north Oregon Cascades as well. /27 


&& 


Fire weather (previous discussion)...a thermal trough is extending 
from southern Oregon into the north Oregon Cascades this afternoon. 
Expect this trough to remain over the region through at least 
Friday...drifting back toward the coast each night and moving inland 
during the day as the interior heats up. This pattern will bring 
enhanced mixing and instability...which combined with the very hot 
and dry weather and dry fuels will create critical fire weather 
conditions. Based on the latest model guidance...decided to extend 
the red flag warning through Friday and to include the central Oregon 
Coast Range...the southern Washington Cascades...and all of the 
interior lowlands. The thermal trough is modeled to finally push east 
of the Cascades on Sat...although the timing of this is still 
somewhat uncertain. Pyle 


&& 


Aviation...VFR conditions should continue through Thursday. Band 
of coastal stratus that was present earlier has cleared out as 
northerly winds increased along the coast this evening. As winds 
start to decrease overnight tonight...there could be occasional 
reductions in visible at konp due to haze or br similar to last 
night through early this morning. With the thermal trough moving 
offshore...coastal terminals should remain predominantly VFR. 
Inland...all terminals will remain VFR as well. Gusty northerly 
winds are decreasing this evening and should stay around 5 kts or 
less overnight through early Thursday. Northerly winds should 
start to increase again late Thursday morning and could gust up to 
20 to 25 kts Thursday afternoon/evening. 


Kpdx and approaches...VFR conditions for the next 24 hours. Northwest-Erly 
winds decreasing this evening...dropping to around 5 kts tonight. 
Northwest-Erly winds start to increase again around 18z Thursday...gusting 
to 20 kts Thursday afternoon/evening. -McCoy 


&& 


Marine...typical Summer pattern continues for the next several 
days with northerly winds becoming gusty each afternoon/evening. 
Again it appears the models may have been early bringing gusty 
northerly winds over the waters...but winds do appear to be 
increasing this evening apparent from shortening wave periods at 
buoys 89 and 50. Still think steep seas around 7 to 8 feet with wave 
periods around 7 to 9 seconds are likely again this evening due to 
gusty 
northerly winds up to 25 to 30 kts...especially south of 
Tillamook. Winds may be slower to decrease Thursday morning over 
the southern waters than the northern waters...so have kept Small 
Craft Advisory for hazardous seas over the southern waters longer 
than over the northern waters. With the advisory for winds...winds 
will likely again drop below advisory criteria for a period 
Thursday morning...especially over the northern waters...but will 
ramp up again gusting up to 20 to 25 kts late Thursday 
morning/early Thursday afternoon. Northerly winds not expected to 
be quite as strong Thursday compared to this evening...so we may 
not see seas become quite as steep. 


Summer pattern continues through the weekend...with gusty 
northerly winds ramping up each afternoon/evening and decreasing 
during the early morning hours each day. -McCoy 


&& 


Pqr watches/warnings/advisories... 
or...red flag warning until 11 PM PDT Friday for zone 603-zone 604- 
zone 605-zone 606-zone 607-zone 608. 


Heat advisory until 9 PM PDT Friday for central Coast Range of 
western Oregon-central Columbia River gorge-central 
Willamette Valley-Coast Range of northwest Oregon-greater 
Portland metropolitan area-lower Columbia-south Willamette Valley- 
Upper Hood River Valley-western Columbia River gorge. 


Washington...red flag warning until 11 PM PDT Friday for zone 604-zone 660. 


Heat advisory until 9 PM PDT Friday for central Columbia River 
gorge-Greater Vancouver area-I-5 corridor in Cowlitz County- 
western Columbia River gorge. 


Pz...Small Craft Advisory for winds until 3 am PDT Friday for coastal 
waters from Cape Shoalwater Washington to Florence or out 60 nm. 


Small Craft Advisory for hazardous seas until 5 am PDT Thursday 
for coastal waters from Cape Shoalwater Washington to Cascade Head or 
out 60 nm. 


Small Craft Advisory for hazardous seas until noon PDT Thursday 
for coastal waters from Cascade Head or to Florence or out 60 
nm. 


&& 


$$ 


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This discussion is for northwest Oregon and southwest Washington 
from the Cascade crest to 60 nautical miles offshore. The area is 
commonly referred to as the forecast area. 






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