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ZIP 98645 · Castle Rock, Washington

Current conditions and the National Weather Service 7-day forecast for ZIP code 98645, Castle Rock, Washington — temperature, rain chance, wind, radar and alerts.

Saturday Aug 29 night: a low around 46°F. Sunday Aug 30: a high near 70°F and a low around 47°F. The wettest day looks like Tuesday Sep 1, near 0.03 in. Highs over the period run 62°F to 77°F.

National Weather Service forecast for ZIP 98645, Castle Rock, Washington
DayHighLowPrecip
Saturday Aug 2946°
Sunday Aug 3070°47°
Monday Aug 3177°51°
Tuesday Sep 171°51°0.03 in
Wednesday Sep 262°49°
Thursday Sep 365°47°
Friday Sep 468°48°
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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