Hermiston, Oregon Weather Conditions

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Current Conditions

  • 65°
  • Clear
  • Wind: Calm
  • Humidity: 50%
  • Visibility: 7.0 miles
  • Dew Point: 46°
  • Pressure: 29.75 in. +

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Next 12 Hours

6  am
9  am
12  pm
3  pm
6  pm
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Overcast
Overcast
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
64°
77°
89°
93°
92°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Overcast
  • High: 95 °
  • Low: 63 °
  • Overcast
  • Tuesday
  • Clear
  • High: 95 °
  • Low: 58 °
  • Clear
  • Wednesday
  • Clear
  • High: 90 °
  • Low: 57 °
  • Clear
  • Thursday
  • Clear
  • High: 88 °
  • Low: 57 °
  • Clear
  • Friday
  • Clear
  • High: 95 °
  • Low: 63 °
  • Clear

Forecast for Hermiston, Oregon

Updated: 3:55 am PDT on August 3, 2015

  • Today

    Mostly cloudy. Brief sprinkles in the afternoon. Highs 93 to 98. West wind 10 to 15 mph. Gusts around 30 mph in the afternoon.

  • Tonight

    Partly cloudy. Lows 61 to 66. Southwest wind 10 to 15 mph. Gusts around 30 mph in the evening.

  • Tuesday

    Mostly sunny. Highs 91 to 96. West wind 10 to 15 mph. Gusts around 30 mph in the afternoon.

  • Tuesday Night

    Mostly clear. Lows 54 to 59. West wind 10 to 15 mph and gusty shifting to the southwest overnight.

  • Wednesday

    Mostly sunny. Highs 86 to 91. Southwest wind 10 to 15 mph shifting to the west in the afternoon.

  • Wednesday Night and Thursday

    Mostly clear. Lows 59 to 64. Highs 86 to 91.

  • Thursday Night and Friday

    Mostly clear. Lows 57 to 62. Highs 90 to 95.

  • Friday Night

    Mostly clear. Lows 63 to 68.

  • Saturday

    Mostly sunny. Highs 89 to 94.

  • Saturday Night

    Partly cloudy. Breezy. Lows 63 to 68.

  • Sunday

    Partly cloudy. A slight chance of showers and thunderstorms. Highs 86 to 91.

Severe Weather Alert Descriptions

 Fire Weather Watch  Statement as of 8:51 PM PDT on August 2, 2015


... Fire Weather Watch remains in effect from Monday afternoon
through Tuesday evening for gusty winds and low humidity for fire
weather zones 639 and 641...

... Red flag warning will expire at 9 PM PDT this evening for high
Haines of 6 and low humidity for fire weather zones 639 and 641...

* affected area... the red flag warning will expire at 9 PM in
orz639... fire weather zone 639. In orz641... fire weather zone
641... in waz639... fire weather zone 639. In waz641... fire
weather zone 641.

* Timing... Haines index has lowered and temperatures have cooled
off this evening reducing the Haines threat. However... winds
will increase Monday afternoon and continue into Tuesday
evening in these zones.

* Wind... increasing to northwest 10 to 20 mph with gusts to 25
mph. Strongest winds will be in the afternoon and evenings
Monday and Tuesday.

* Humidity... 10-22 percent.

* Impacts... any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.

Precautionary/preparedness actions...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
red flag warnings.







 Record Report  Statement as of 05:27 PM PDT on August 02, 2015


... Record high temperature set at Yakima WA...

a record high temperature of 104 degrees was set at Yakima WA today.
This breaks the old record of 100 set in 2009.




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Southeast 11th Street, Hermiston, OR

Updated: 6:00 AM PDT

Temperature: 63.5 °F Dew Point: 50 °F Humidity: 61% Wind: North at - Pressure: 29.81 in Hourly Precipitation: - Heat Index: - Graphs

Location: West Park Area, JW's Backyard, Hermiston, OR

Updated: 6:06 AM PDT

Temperature: 61.7 °F Dew Point: 49 °F Humidity: 64% Wind: Calm Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET, Hermiston, OR

Updated: 5:31 AM PDT

Temperature: 63 °F Dew Point: 48 °F Humidity: 58% Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: South Hill, Umatilla, OR

Updated: 6:06 AM PDT

Temperature: 64.8 °F Dew Point: 51 °F Humidity: 60% Wind: Calm Pressure: 29.68 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET, Echo, OR

Updated: 4:54 AM PDT

Temperature: 75 °F Dew Point: 41 °F Humidity: 30% Wind: SW at 7 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Irrigon Light, Plymouth, WA

Updated: 6:00 AM PDT

Temperature: 66.2 °F Dew Point: - Humidity: - Wind: North at - Pressure: 29.41 in Hourly Precipitation: - Heat Index: - Graphs

Location: MesoWest, Helix, OR

Updated: 2:10 AM PDT

Temperature: 77 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: APRSWXNET, Helix, OR

Updated: 5:37 AM PDT

Temperature: 61 °F Dew Point: 41 °F Humidity: 47% Wind: ENE at 2 mph Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: East Paterson, Paterson, WA

Updated: 5:48 AM PDT

Temperature: 67.5 °F Dew Point: 53 °F Humidity: 60% Wind: NNE at 3.2 mph Pressure: 29.33 in Hourly Precipitation: - Heat Index: - Graphs

Location: APRSWXNET, Plymouth, WA

Updated: 5:40 AM PDT

Temperature: 69 °F Dew Point: 53 °F Humidity: 57% Wind: East at 2 mph Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Pendleton-Stage Gulch Road, Pendleton, OR

Updated: 5:49 AM PDT

Temperature: 64.6 °F Dew Point: 41 °F Humidity: 43% Wind: ESE at 3.0 mph Pressure: 31.96 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Riverside High School, Boardman, OR

Updated: 5:44 AM PDT

Temperature: 74.9 °F Dew Point: 52 °F Humidity: 45% Wind: SSW at 8.0 mph Pressure: 29.76 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Port Kelley, Touchet, WA

Updated: 3:30 AM PDT

Temperature: 74.3 °F Dew Point: - Humidity: - Wind: North at - Pressure: 29.36 in Hourly Precipitation: - Heat Index: - Graphs

Location: Valley Vista, Kennewick, WA

Updated: 6:06 AM PDT

Temperature: 74.3 °F Dew Point: 49 °F Humidity: 40% Wind: SSW at 12.8 mph Pressure: 29.30 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: APRSWXNET, Kennewick, WA

Updated: 5:49 AM PDT

Temperature: 74 °F Dew Point: 49 °F Humidity: 41% Wind: SE at 5 mph Pressure: 29.70 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Wallula Gap, Wallula, WA

Updated: 6:06 AM PDT

Temperature: 69.8 °F Dew Point: 37 °F Humidity: 30% Wind: SSW at 4.0 mph Pressure: 29.56 in Hourly Precipitation: - Heat Index: - Graphs

Location: National Weather Service, Pendleton, OR

Updated: 6:06 AM PDT

Temperature: 70.9 °F Dew Point: 40 °F Humidity: 32% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: APRSWXNET, Helix, OR

Updated: 5:42 AM PDT

Temperature: 68 °F Dew Point: 39 °F Humidity: 35% Wind: Calm Pressure: 29.54 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Middle Cold Springs Creek-Helix 6SW, Pendleton, OR

Updated: 6:05 AM PDT

Temperature: 63.8 °F Dew Point: 40 °F Humidity: 41% Wind: East at 1.0 mph Pressure: 29.82 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 Pendleton or 
300 am PDT Monday Aug 3 2015 


Short term...today through Tuesday night...an upper level trough of 
low pressure will settle over British Columbia and the Pacific 
northwest through this period. The central low pressure with this 
trough will remain over British Columbia. Thus will see the south- 
southwest flow over the region gradually shift to the west- 
southwest. Thus will gradually see much of the moisture over the 
pacnw be pushed east of the region. There will remain the potential 
for thunderstorms over the region today. The best chances look to be 
across central and east-central Oregon, with lesser chances into the 
Blue Mountains, Grande Ronde Valley and Wallowa County. Elsewhere 
today expect only a few showers or light sprinkles. Low level flow 
will be increasingly westerly today. Thus expect cooler high temperatures 
at most, if not all, locations. As the moisture over the region 
shifts east tonight and on Tuesday will see chances of showers or 
thunderstorms decrease such that only our eastern and southern most 
areas should be affected. 90 


Long term...Wednesday through Sunday night...a progressive zonal 
pattern in the westerlies with a large longwave middle/upper level low 
pressure system over British Columbia on Wednesday sets up a 
southwest flow aloft across interior Pacific northwest with stable 
airmass for a slight chance of orographic showers over far eastern 
mountains of Oregon Wednesday morning. A weak low amplitude 
shortwave moves rapidly through southeast Washington and northeast 
Oregon Wednesday afternoon/evening for a slight chance of an 
afternoon thunderstorm in the Wallowa Mountains and along high ridge 
in far eastern Wallowa County. The slight chance of thunderstorms 
ends before sunset Wednesday. Wednesday night the aforementioned low 
moves southeast and into Idaho/Montana by daybreak Thursday. As the 
forecast area will be on the dry southern flank of the low, we will 
have dry conditions Wednesday night and Thursday. Thursday night 
into Friday morning a migratory high pressure ridge moves across 
forecast area for dry conditions. Friday afternoon a middle/upper 
level low moves into California and allows some middle level moisture 
to move into central Oregon for slight chance of afternoon/evening 
thunderstorms. The low moves northeast through eastern Oregon for a 
slight chance of showers and thunderstorms Friday night and 
Saturday. Friday night through Sunday night a southwest flow aloft 
allows an influx of additional moisture into central and eastern 
Oregon for a chance of showers and thunderstorms. Polan 


&& 


Aviation...12z tafs...VFR conditions will prevail during the next 
24 hours at all taf sites. There may be brief MVFR at kbdn and krdm 
this afternoon due to showers and thunderstorms. Winds will increase 
from the west mainly in the lower Columbia Basin and surrounding 
valleys and the ridge tops as cooler marine air pushes into the 
region today. Polan 


&& 


Fire weather...still anticipate the potential for increased and 
gusty winds today in and near the Columbia River gorge and portions 
of the Columbia Basin. These winds should decrease late this 
evening, then increase again Tuesday. At the same time minimum 
relative humidities will improve from the very low values this 
weekend, but will remain low. Thus will continue the current red 
flag watches. Also thunderstorms across the southern districts will 
have to be monitored for the potential of abundant lightning this 
afternoon and evening. At this time confidence in the amount of 
lightning is not high enough to issue any watches or warnings. 90 


&& 


Preliminary point temps/pops... 
PDT 92 60 91 56 / 20 10 10 10 
alw 93 66 92 63 / 10 10 10 10 
psc 97 62 95 56 / 10 10 0 0 
ykm 93 60 91 55 / 10 10 0 0 
hri 95 62 94 55 / 10 10 0 0 
eln 92 62 87 58 / 10 10 0 0 
rdm 88 49 88 46 / 30 20 10 10 
lgd 89 53 88 49 / 20 20 20 10 
gcd 91 54 91 50 / 30 30 20 10 
dls 91 63 88 58 / 20 10 0 0 


&& 


PDT watches/warnings/advisories... 
or...Fire Weather Watch from noon PDT today through Tuesday evening 
for orz639-641. 


Washington...Fire Weather Watch from noon PDT today through Tuesday evening 
for waz639-641-675. 


&& 


For additional weather information, check our web site at... 
www.Weather.Gov/Pendleton 


$$ 


90/99/99/90 






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