Point Forecast: Grand Coulee WA
 47.93N 118.99W (Elev. 2037 ft)
Last Update: 4:15 pm PDT Jul 14, 2025
Tabular Forecast
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Date07/1407/15
Hour (PDT)192021222300010203040506070809101112131415161718
Temperature (°F)847975737069686764636362646668727377798081838482
Dewpoint (°F)484848494850505048484847474645464443424242444444
Heat Index (°F)82797577797979818280
Surface Wind (mph)262626261818181717171515161718181717171616151514
Wind DirNWNNNNNNNNNNNNNENENENENENENENENENEE
Gust4537373726262626252524
Sky Cover (%)810814131211142020202818242018144545103131521
Precipitation Potential (%)533366699977744411111100
Relative Humidity (%)293438434550535557585857544944393630272625252526
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/16
Hour (PDT)192021222300010203040506070809101112131415161718
Temperature (°F)828075727068666563626162646770747881848687888988
Dewpoint (°F)464747474747474747484747464646464645444444444544
Heat Index (°F)8079757880828384858685
Surface Wind (mph)1414141410101066655566688888888
Wind DirEEEEEEENENENENENENEEEESESESESSSSS
Gust232322
Sky Cover (%)161171013131366644411100022233
Precipitation Potential (%)000000000000000000000011
Relative Humidity (%)283137414447505356595957524742373228252322222222
Rain------------------------------------------------
Thunder------------------------------------------------

Additional Forecasts and Information
International System of UnitsForecast Discussion
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Forecast Weather TableArea Forecast Discussion
Tabular State ForecastClimatology