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Newcastle, California

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

Saturday Oct 3: a high near 97°F and a low around 68°F. Highs over the period run 88°F to 97°F.

National Weather Service forecast for Newcastle, California
DayHighLowPrecip
Saturday Oct 397°68°—
Sunday Oct 495°68°—
Monday Oct 597°68°—
Tuesday Oct 697°68°—
Wednesday Oct 797°68°—
Thursday Oct 894°66°—
Friday Oct 988°——

NOAA NWS NDFD 2.5 km, run 2026-10-03 15:00 UTC · days are local time in America/Los Angeles. The live page updates continuously.

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