National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

EW6690 Maple Valley (E6690)

Lat: 47.442°NLon: 122.01433°WElev: 742.16ft.

NA

52°F

11°C

Humidity 97%
Wind Speed SW 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 51°F (11°C)
Visibility NA
Last update 20 Mar 06:52 AM PDT
Extended Forecast for

Issaquah WA

Flood Watch March 20, 07:10am until March 20, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 20, 07:10am until March 20, 05:00pm

    NOW until 5:00pm Fri

    Flood Watch

  • Today

    High: 56 °F

    Rain

  • Tonight

    Tonight: A chance of rain before 11pm, then a chance of showers between 11pm and 3am. Mostly cloudy, with a low around 39. West southwest wind 5 to 8 mph becoming north northeast in the evening. Chance of precipitation is 40%.

    Low: 39 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain showers before 11am, then a chance of rain and snow showers between 11am and 2pm, then a chance of rain showers after 2pm. Partly sunny, with a high near 49. North wind around 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 49 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A slight chance of rain showers before 5am, then a chance of rain and snow showers. Partly cloudy, with a low around 36. North northwest wind 5 to 8 mph becoming south southeast in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 36 °F

    Slight Chance
    Showers then
    Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow before 8am, then a chance of rain. Partly sunny, with a high near 51. South southeast wind 6 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 51 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Today
Rain, mainly before 3pm. High near 56. South southwest wind around 11 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tonight
A chance of rain before 11pm, then a chance of showers between 11pm and 3am. Mostly cloudy, with a low around 39. West southwest wind 5 to 8 mph becoming north northeast in the evening. Chance of precipitation is 40%.
Saturday
A chance of rain showers before 11am, then a chance of rain and snow showers between 11am and 2pm, then a chance of rain showers after 2pm. Partly sunny, with a high near 49. North wind around 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday Night
A slight chance of rain showers before 5am, then a chance of rain and snow showers. Partly cloudy, with a low around 36. North northwest wind 5 to 8 mph becoming south southeast in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
A chance of rain and snow before 8am, then a chance of rain. Partly sunny, with a high near 51. South southeast wind 6 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.
Sunday Night
Mostly cloudy, with a low around 36.
Monday
Mostly cloudy, with a high near 53.
Monday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 41.
Tuesday
Rain. Cloudy, with a high near 53.
Tuesday Night
Rain. Mostly cloudy, with a low around 39.
Wednesday
Rain. Cloudy, with a high near 50.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 34.
Thursday
A chance of rain and snow. Partly sunny, with a high near 53.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Issaquah WA
 47.52°N 122.01°W (Elev. 561 ft)
Last Update:
1:53 am PDT Mar 20, 2026
Forecast Valid:
7am PDT Mar 20, 2026-6pm PDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation