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

Heavy Rainfall on the Western Gulf Coast; Severe Thunderstorms in the Southern Plains Friday

A multi-day heavy rainfall event will continue over the western Gulf Coast through Monday. Slight Risks of excessive rainfall have been issued, and Flood Watches remain in effect through Monday evening. Scattered severe storms capable of producing large hail and damaging winds are possible across western portions of Texas and Oklahoma on Friday. Read More >

Current conditions at

EW6690 Maple Valley (E6690)

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

NA

58°F

14°C

Humidity 71%
Wind Speed ESE 0 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 49°F (9°C)
Visibility NA
Last update 21 May 11:41 PM PDT
Extended Forecast for

Sammamish WA

  • Tonight

    Tonight: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 4am. Otherwise, increasing clouds, with a low around 51. North wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 74. Light and variable wind.

    High: 74 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50. North northwest wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain

  • Memorial Day

    Memorial Day: Rain, mainly after 11am. Cloudy, with a high near 61.

    High: 61 °F

    Rain

  • Monday Night

    Monday Night: Rain, mainly before 11pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Calm wind.
Friday
Sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Patchy fog after 4am. Otherwise, increasing clouds, with a low around 51. North wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 74. Light and variable wind.
Saturday Night
Mostly cloudy, with a low around 50. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 71.
Sunday Night
A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 50.
Memorial Day
Rain, mainly after 11am. Cloudy, with a high near 61.
Monday Night
Rain, mainly before 11pm. Mostly cloudy, with a low around 46.
Tuesday
A chance of rain. Mostly cloudy, with a high near 64.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A slight chance of rain. Partly sunny, with a high near 66.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 48.
Thursday
A slight chance of rain. Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sammamish WA
 47.6°N 122.03°W (Elev. 463 ft)
Last Update:
11:26 pm PDT May 21, 2026
Forecast Valid:
11pm PDT May 21, 2026-6pm PDT May 28, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation