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John Sam Lake, Washington

Current conditions and the National Weather Service 7-day forecast for John Sam Lake, Washington — temperature, rain chance, wind, radar and active alerts.

Saturday Aug 29 night: a low around 52°F. Sunday Aug 30: a high near 68°F and a low around 51°F. Highs over the period run 67°F to 72°F.

National Weather Service forecast for John Sam Lake, Washington
DayHighLowPrecip
Saturday Aug 2952°
Sunday Aug 3068°51°
Monday Aug 3172°53°
Tuesday Sep 172°56°
Wednesday Sep 267°53°
Thursday Sep 368°51°
Friday Sep 469°51°
Saturday Sep 570°

NOAA NWS NDFD 2.5 km, run 2026-08-30 00:00 UTC · days are local time in America/Los Angeles. The live page updates continuously.

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