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Saint Helena, California

Current conditions and the National Weather Service 7-day forecast for Saint Helena, California — temperature, rain chance, wind, radar and active alerts.

Saturday Aug 29 night: a low around 52°F. Sunday Aug 30: a high near 88°F and a low around 52°F. Highs over the period run 76°F to 88°F.

National Weather Service forecast for Saint Helena, California
DayHighLowPrecip
Saturday Aug 2952°
Sunday Aug 3088°52°
Monday Aug 3181°51°
Tuesday Sep 176°51°
Wednesday Sep 279°52°
Thursday Sep 379°51°
Friday Sep 480°52°
Saturday Sep 583°

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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