Washington · NWS SEW office

Maple Valley, WA weather

It is 45°F at EW6690 Maple Valley as of Oct 27, 10:46 PM PDT. Tonight: Light Rain, low near 40°F, 93% chance of precipitation. Forecast from the National Weather Service, issued Oct 27, 12:41 PM PDT.

Updated Oct 27, 11:28 PM PDT (snapshot)

Current conditions

Temperature

45°F

Light Rain

Wind

SE 2 mph, gusts 6 mph

Humidity 100%

Pressure · visibility

29.87 inHg

Visibility —

Observed at EW6690 Maple Valley (E6690), Oct 27, 10:46 PM PDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Maple Valley forecast zone right now.

Around the NWS SEW forecast area

No active alerts in zones served by the SEW office near Maple Valley.

From the alert snapshot of Oct 28, 2026, 2:15 AM EDT. Washington has 5 active alerts: see them all.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Maple Valley (local time)
TimeTempForecastPrecip. chanceWind
Tue 11 PM44°FLight Rain93%SSW 9 mph
Wed 12 AM44°FLight Rain91%SSW 9 mph
Wed 1 AM44°FLight Rain Likely73%SSW 9 mph
Wed 2 AM43°FLight Rain Likely55%SSW 9 mph
Wed 3 AM43°FChance Light Rain51%SSW 8 mph
Wed 4 AM43°FChance Light Rain48%SSW 8 mph
Wed 5 AM43°FLight Rain Likely69%SSW 7 mph
Wed 6 AM42°FLight Rain Likely69%SSW 7 mph
Wed 7 AM42°FLight Rain Likely65%SSW 7 mph
Wed 8 AM42°FChance Light Rain53%SSW 6 mph
Wed 9 AM41°FChance Light Rain49%SSW 7 mph
Wed 10 AM44°FChance Light Rain53%SSW 7 mph
Wed 11 AM45°FChance Light Rain47%SSW 7 mph
Wed 12 PM46°FChance Light Rain49%SSW 7 mph
Wed 1 PM47°FLight Rain Likely56%SSW 7 mph
Wed 2 PM48°FLight Rain Likely64%SSW 6 mph
Wed 3 PM49°FLight Rain Likely66%SW 6 mph
Wed 4 PM49°FChance Light Rain53%SSW 5 mph
Wed 5 PM48°FChance Light Rain51%S 3 mph
Wed 6 PM47°FChance Light Rain39%S 3 mph
Wed 7 PM44°FChance Light Rain30%S 3 mph
Wed 8 PM43°FSlight Chance Light Rain18%SSE 3 mph
Wed 9 PM42°FMostly Cloudy7%SSE 3 mph
Wed 10 PM41°FMostly Cloudy4%SSE 3 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Maple Valley can differ.

7-day forecast

Tonight

Low 40°F

Rain. Cloudy. Low around 40, with temperatures rising to around 43 overnight. South southwest wind around 9 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.

Wednesday

High 50°F·Low 35°F

Rain likely. Mostly cloudy. High near 50, with temperatures falling to around 48 in the afternoon. South southwest wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

Wednesday Night: A chance of rain. Mostly cloudy. Low around 35, with temperatures rising to around 37 overnight. Southeast wind around 3 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Thursday

High 54°F·Low 36°F

A slight chance of rain before 11am, then patchy fog between 11am and 1pm, then a slight chance of rain. Partly sunny, with a high near 54. Northeast wind 0 to 3 mph. Chance of precipitation is 20%.

Thursday Night: A chance of rain. Mostly cloudy, with a low around 36. East wind around 3 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Friday

High 52°F·Low 33°F

A chance of rain before 11am. Partly sunny, with a high near 52. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Friday Night: Mostly cloudy, with a low around 33.

Saturday

High 54°F·Low 35°F

A slight chance of rain after 5pm. Partly sunny, with a high near 54.

Saturday Night: A slight chance of rain before 4am. Mostly cloudy, with a low around 35.

Sunday

High 54°F·Low 35°F

Partly sunny, with a high near 54.

Sunday Night: Partly cloudy, with a low around 35.

Monday

High 58°F·Low 39°F

Partly sunny, with a high near 58.

Monday Night: Mostly cloudy, with a low around 39.

Tuesday

High 59°F

Partly sunny, with a high near 59.

Nearby cities

Larger cities in the area

Other cities in King County

See every city we cover in Washington, or check all active alerts.

About this forecast

Forecast office
Maple Valley is served by the National Weather Service SEW forecast office, forecast zone WAZ308, county zone WAC033.
Location used
The Census Bureau's internal point for Maple Valley (47.3671, -122.0348), in King County. Population: 28,553 (2024 estimate), number 41 of the 58 Washington cities on this site.
Radar
Nearest NWS radar: KATX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/47.3671,-122.0348 (forecast issued Oct 27, 12:41 PM PDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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