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

51°F

11°C

Humidity 1%
Wind Speed E 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint -45°F (-43°C)
Visibility NA
Last update 20 Mar 04:22 AM PDT
Extended Forecast for

Issaquah WA

Flood Watch March 20, 04:39am until March 20, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 20, 04:39am until March 20, 05:00pm

    NOW until 5:00pm Fri

    Flood Watch

  • Overnight

    Low: 52 °F

    Rain Likely

  • Friday

    Friday: Rain, mainly before 3pm. High near 56. South southwest wind 9 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 56 °F

    Rain

  • Friday Night

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

    Low: 40 °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 northeast 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 20 percent chance of showers. Partly cloudy, with a low around 36. North northwest wind 5 to 7 mph becoming south southeast in the evening.

    Low: 36 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of rain. Partly sunny, with a high near 52.

    High: 52 °F

    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

Detailed Forecast

Overnight
Rain likely. Cloudy, with a low around 52. South wind around 8 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain, mainly before 3pm. High near 56. South southwest wind 9 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
A chance of rain before 11pm, then a chance of showers between 11pm and 3am. Mostly cloudy, with a low around 40. Southwest wind 5 to 8 mph becoming 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 northeast wind around 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 36. North northwest wind 5 to 7 mph becoming south southeast in the evening.
Sunday
A 40 percent chance of rain. Partly sunny, with a high near 52.
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 54.
Tuesday Night
Rain. Mostly cloudy, with a low around 39.
Wednesday
Rain. Mostly cloudy, with a high near 50.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 35.
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 122.04°W (Elev. 200 ft)
Last Update:
1:53 am PDT Mar 20, 2026
Forecast Valid:
4am 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