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Newcastle, Washington

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

Saturday Aug 29 night: a low around 53°F. Sunday Aug 30: a high near 68°F and a low around 52°F. Highs over the period run 64°F to 73°F.

National Weather Service forecast for Newcastle, Washington
DayHighLowPrecip
Saturday Aug 2953°
Sunday Aug 3068°52°
Monday Aug 3173°55°
Tuesday Sep 171°56°
Wednesday Sep 264°53°
Thursday Sep 366°52°
Friday Sep 467°53°
Saturday Sep 569°

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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