Renton, Washington Weather Conditions

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Current Conditions

  • 68°
  • Partly Cloudy
  • Wind: SW 8 mph
  • Humidity: 43%
  • Visibility: 10.0 miles
  • Dew Point: 45°
  • Pressure: 29.91 in. 0

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Next 12 Hours

5  pm
8  pm
11  pm
2  am
5  am
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
67°
61°
57°
55°
53°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Clear
  • High: 69 °
  • Low: 51 °
  • Clear
  • Thursday
  • Chance of Rain
  • High: 68 °
  • Low: 49 °
  • Chance of Rain
  • Friday
  • Clear
  • High: 69 °
  • Low: 48 °
  • Clear
  • Saturday
  • Clear
  • High: 74 °
  • Low: 54 °
  • Clear
  • Sunday
  • Chance of Rain
  • High: 69 °
  • Low: 54 °
  • Chance of Rain

Forecast for Renton, Washington

Updated: 3:30 PM PDT on September 2, 2015

  • Tonight

    Mostly cloudy. A chance of showers and thunderstorms in the evening...then a chance of showers after midnight. Lows in the upper 40s to mid 50s. Southwest wind 10 to 15 mph becoming south after midnight.

  • Thursday

    Mostly cloudy. A chance of showers in the morning... then a chance of showers and thunderstorms in the afternoon. Highs in the lower to mid 60s. South wind around 10 mph becoming southwest in the afternoon.

  • Thursday Night

    Mostly cloudy with a chance of showers. Lows in the mid 40s to lower 50s. North wind to 10 mph.

  • Friday

    Partly sunny. Highs in the mid to upper 60s. North wind to 10 mph increasing to 10 to 15 mph in the afternoon.

  • Friday Night

    Partly cloudy. Lows in the upper 40s to mid 50s. North wind around 10 mph in the evening becoming light.

  • Saturday

    Sunny. Highs in the lower 70s.

  • Saturday Night

    Mostly cloudy. Lows in the lower to mid 50s.

  • Sunday

    Mostly cloudy with a chance of showers. Highs in the mid to upper 60s.

  • Sunday Night

    Mostly cloudy. A chance of showers in the evening. Lows in the lower to mid 50s.

  • Labor Day

    Mostly sunny. Highs near 70.

  • Monday Night

    Mostly cloudy with a chance of showers. Lows in the lower to mid 50s.

  • Tuesday

    Mostly cloudy with a chance of showers. Highs in the lower 70s.

  • Tuesday Night

    Mostly cloudy with a chance of showers. Lows in the mid to upper 50s.

  • Wednesday

    Partly sunny. Highs in the lower 70s.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Victoria Park, Renton, WA

Updated: 4:37 PM PDT

Temperature: 69.4 °F Dew Point: 49 °F Humidity: 49% Wind: NW at 2.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Renton Hill, Renton, WA

Updated: 4:30 PM PDT

Temperature: 69.6 °F Dew Point: 47 °F Humidity: 44% Wind: South at 7.0 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Renton Hill - Above Downtown, Renton, WA

Updated: 4:43 PM PDT

Temperature: 68.5 °F Dew Point: 46 °F Humidity: 45% Wind: SSW at 7.4 mph Pressure: 29.58 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Wells Avenue South, Renton, WA

Updated: 4:40 PM PDT

Temperature: 68.0 °F Dew Point: 49 °F Humidity: 50% Wind: North at - Pressure: 29.96 in Hourly Precipitation: - Heat Index: - Graphs

Location: Southwest 39th Street, Renton, WA

Updated: 4:40 PM PDT

Temperature: 72.1 °F Dew Point: 53 °F Humidity: 50% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Skycrest, Seattle, WA

Updated: 4:37 PM PDT

Temperature: 68.7 °F Dew Point: 50 °F Humidity: 52% Wind: ESE at 4.2 mph Pressure: 29.83 in Hourly Precipitation: - Heat Index: - Graphs

Location: APRSWXNET, Renton, WA

Updated: 4:25 PM PDT

Temperature: 65 °F Dew Point: 47 °F Humidity: 53% Wind: SSE at 1 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest, Seattle, WA

Updated: 3:15 PM PDT

Temperature: 67 °F Dew Point: 48 °F Humidity: 50% Wind: SSW at 5 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET, Seatac, WA

Updated: 4:10 PM PDT

Temperature: 67 °F Dew Point: 49 °F Humidity: 52% Wind: West at 4 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: 46th Avenue South, Seattle, WA

Updated: 4:40 PM PDT

Temperature: 67.6 °F Dew Point: 51 °F Humidity: 54% Wind: North at - Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Lakeridge/Skyway, Seattle, WA

Updated: 4:35 PM PDT

Temperature: 67.8 °F Dew Point: 49 °F Humidity: 51% Wind: SW at 3.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Jones Avenue Northeast, Renton, WA

Updated: 4:40 PM PDT

Temperature: 72.0 °F Dew Point: 47 °F Humidity: 41% Wind: North at - Pressure: 29.77 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: 57th Avenue South, Seattle, WA

Updated: 4:40 PM PDT

Temperature: 70.2 °F Dew Point: 52 °F Humidity: 53% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: 144th Avenue Southeast, Renton, WA

Updated: 4:40 PM PDT

Temperature: 68.7 °F Dew Point: 50 °F Humidity: 50% Wind: North at - Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Maplewood Heights, Renton, WA

Updated: 4:40 PM PDT

Temperature: 65.7 °F Dew Point: 50 °F Humidity: 57% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Linda Highlands, Kent, WA

Updated: 4:34 PM PDT

Temperature: 66.0 °F Dew Point: 48 °F Humidity: 52% Wind: SW at 1.7 mph Pressure: 29.55 in Hourly Precipitation: - Heat Index: - Graphs

Location: 148th Place Southeast, Renton, WA

Updated: 4:40 PM PDT

Temperature: 66.4 °F Dew Point: 49 °F Humidity: 53% Wind: North at - Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: McMicken Heights, SeaTac, WA

Updated: 4:43 PM PDT

Temperature: 68.0 °F Dew Point: 47 °F Humidity: 47% Wind: South at 5.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Kennydale, Renton, WA

Updated: 4:40 PM PDT

Temperature: 71.2 °F Dew Point: 51 °F Humidity: 48% Wind: North at - Pressure: 29.96 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Lakeridge, Seattle, WA

Updated: 4:43 PM PDT

Temperature: 67.7 °F Dew Point: 50 °F Humidity: 54% Wind: NW at 2.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Green Tree Neighborhood, Kent, WA

Updated: 4:30 PM PDT

Temperature: 67.1 °F Dew Point: 50 °F Humidity: 55% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: East Renton Highlands, Renton, WA

Updated: 4:41 PM PDT

Temperature: 68.0 °F Dew Point: 49 °F Humidity: 48% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: benson meadows east, Kent, WA

Updated: 4:37 PM PDT

Temperature: 68.9 °F Dew Point: 48 °F Humidity: 47% Wind: SW at 2.7 mph Pressure: 29.87 in Hourly Precipitation: - Heat Index: - Graphs

Location: East Renton Highlands, Renton, WA

Updated: 4:43 PM PDT

Temperature: 66.7 °F Dew Point: 28 °F Humidity: 23% Wind: SE at 2.7 mph Pressure: 29.32 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Angle Lake Haven, SeaTac, WA

Updated: 4:43 PM PDT

Temperature: 66.6 °F Dew Point: 48 °F Humidity: 51% Wind: WSW at 6.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Magnolia, East Renton Highlands, WA

Updated: 4:43 PM PDT

Temperature: 66.5 °F Dew Point: 49 °F Humidity: 54% Wind: East at 3.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Kennydale, Renton, WA

Updated: 4:40 PM PDT

Temperature: 72.7 °F Dew Point: 53 °F Humidity: 50% Wind: North at - Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: APRSWXNET, Renton, WA

Updated: 4:21 PM PDT

Temperature: 67 °F Dew Point: 51 °F Humidity: 57% Wind: SSE at 3 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Southeast 172nd Court, Renton, WA

Updated: 4:40 PM PDT

Temperature: 71.1 °F Dew Point: 57 °F Humidity: 61% Wind: North at - Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Seattle, WA

Updated: 4:36 PM PDT

Temperature: 72.8 °F Dew Point: 51 °F Humidity: 46% Wind: WSW at 2.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Woodside, Renton, WA

Updated: 4:40 PM PDT

Temperature: 65.4 °F Dew Point: 49 °F Humidity: 55% Wind: SSW at 2.0 mph Pressure: 29.26 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Windstone, Renton, WA

Updated: 4:40 PM PDT

Temperature: 66.6 °F Dew Point: 52 °F Humidity: 60% Wind: SW at 8.0 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Stonegate, Renton, WA

Updated: 4:43 PM PDT

Temperature: 68.2 °F Dew Point: 51 °F Humidity: 54% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Coalfield, Renton, WA

Updated: 4:38 PM PDT

Temperature: 69.4 °F Dew Point: 45 °F Humidity: 41% Wind: Calm Pressure: 29.81 in Hourly Precipitation: - Heat Index: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Seattle Washington 
400 PM PDT Wednesday Sep 2 2015 


Synopsis...a large upper level low will move slowly south over 
western Washington tonight through Thursday...bringing cool showery 
weather. There is also a chance of thunderstorms during the 
afternoon and evening hours. The low will move down over Oregon on 
Friday...for a gradual drying and warming trend Friday afternoon and 
Saturday. A weak upper level trough may bring some showers on 
Sunday...and northwest flow aloft may bring additional weak troughs 
and showers at times early next week. 


&& 


Short term...a cold deep upper level low centered over central b.C. 
This afternoon will move slowly S over southern Vancouver Island by 
Thursday afternoon. The air mass is unstable and scattered showers 
and isolated thunderstorms have been moving across West Washington this 
afternoon. Models and water vapor imagery show a small upper level 
shortwave trough just off the Washington coast this afternoon which should 
keep isolated thunderstorms going this evening as it moves across West 
Washington. The air mass should stabilize just enough later this evening to 
end the threat of thunderstorms. 


Models bring the upper level low down over S Vancouver Island and 
the northwest interior Thursday afternoon. GFS has lifted indices 0 to -3 
Thursday afternoon while the NAM shows 0 to -2. NAM bufr sounding 
for ksea shows a skinnier cape profile and lower cape value on 
Thursday compared to today...but this is still enough to include 
afternoon and evening thunderstorms for Thursday. 


Models remain in fair agreement that the upper level low will drop S 
over Oregon Friday afternoon with drier north flow developing over West Washington. 
The 12z GFS was a little faster in developing the north flow than the 
European model (ecmwf) but the 18z GFS has migrated to the slower European model (ecmwf) solution. 
Still...both models show drier north flow developing over West Washington in the 
afternoon and restrict showers to mainly over the mountains. The 
chance of showers over The Lowlands was dropped for Friday afternoon 
with clearing west of Puget Sound sound. 


The upper level low will be over southeast Oregon by Saturday morning. The 
drier north flow aloft behind the low will have all Friday night to 
clear out the clouds...so Saturday should be mostly sunny and 
warmer. 


The upper level low will bring a cooler air mass over West Washington. Highs 
today and Thursday will be mainly in the lower to middle 60s...or about 
10 degrees below normal. Lows in the coldest spots will drop into 
the middle to upper 40s tonight...then reach the lower 40s Thursday and 
Friday nights. Snow levels over the mountains will lower to around 
5500 feet today and Thursday...with local snow accumulations of 
a few inches possible over the higher elevations. Kam 


Long term...northwest flow aloft develops over the region on Sunday and 
continues through Tuesday. The GFS and European model (ecmwf) have been pretty 
inconsistent with the timing and strength of the upper level 
shortwaves embedded in the northwest flow. The models agree that a weak 
shortwave trough will cross West Washington on Sunday...which is just enough to 
add a chance of showers to the forecast. However...confidence is 
still only moderate because the model agreement was just reached 
over the past 2-3 runs. For Monday and Tuesday confidence is low. 
The models have not reached any sort of consensus and each has been 
inconsistent from run-to-run. I will leave Labor Day dry...but keep 
the chance of showers Monday night through Tuesday night. It looks 
like an upper level ridge may be building around midweek so I went 
dry for Wednesday. Kam 


&& 


Aviation...an upper level trough continues to work south along the 
British Columbia coast this afternoon. There is enough instability 
and moisture that in addition to scattered showers...thunderstorms 
have been spreading mainly into the Strait and north interior into 
the area from the northwest. VFR conditions with broken to scattered 
skies over much of the area this afternoon. Showers and 
thunderstorms will continue to spread south into the central and 
south sound this afternoon and evening. An embedded shortwave trough 
rotating under the upper level trough will move into western 
Washington this evening...helping enhance showers and thunderstorms 
this evening. Expect VFR conditions to prevail this evening with 
lower ceilings and gusty winds occurring with showers. Ceilings will 
lower overall into Thursday morning to MVFR levels. 


Ksea...VFR ceilings will linger through the afternoon...except with 
scattered showers as they work south into King County from the north 
this afternoon and evening. Abundant low level moisture will help 
ceilings lower to MVFR levels early Wednesday morning. Winds will 
remain southerly at 10-15 knots. 


&& 


Marine...low level onshore flow continuing today with northwesterly 
westerly flow over the coastal waters. 7 to 9 foot swell that has 
been affecting the coastal waters will subside overnight to 6 to 7 
feet at around 10 seconds. Showers and thunderstorms over area 
waters will keep winds gusty but below Small Craft Advisory 
criteria. Low level onshore flow will weaken somewhat late tonight 
into Thursday...and again Thursday night into Friday as a weak 
surface low moves through the offshore waters. High pressure will 
build over the waters Friday into the weekend. 


&& 


Sew watches/warnings/advisories... 
Washington...none. 
Pz...Small Craft Advisory Grays Harbor bar. 


&& 


$$ 


Www.Weather.Gov/Seattle 


You can see an illustrated version of this discussion at 
www.Weather.Gov/Seattle/gafd/latest_webafd.Html 



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