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Custer, WA Weather Forecast
Custer, WA Weather Forecast Date: 136 AM PST Mon Nov 09 2026
The area/counties/county of: Lowlands Of Western Whatcom County, including the cities of: Bellingham, Sumas, Blaine, and Lynden.or toggle through each period.
Today... Cloudy until late afternoon, then a chance of rain late in the afternoon. Highs in the 50s. Northeast wind to 10 mph becoming east in the afternoon.
Tonight... Breezy. Rain at times in the evening, then mostly cloudy with a chance of rain after midnight. Rainfall amounts a tenth to a quarter of an inch possible. Lows in the 40s to lower 50s. East wind 15 to 25 mph becoming south 10 to 20 mph after midnight.
Tuesday... Breezy. Cloudy with a chance of rain in the morning, then rain in the afternoon. Rainfall amounts a half inch to one inch possible. Highs in the mid to upper 50s. East wind 15 to 25 mph with gusts to 35 mph.
Tuesday Night... Windy. Rain in the evening, then rain likely after midnight. Rainfall amounts a half inch to one inch possible. Lows in the upper 40s to mid 50s. East wind 20 to 35 mph becoming southeast after midnight. Gusts to 45 mph.
Veterans Day... Windy, cloudy. A chance of rain in the morning, then a slight chance of rain in the afternoon. Highs in the 60s. Southeast wind 20 to 35 mph.
Wednesday Night... Breezy, cloudy. Lows in the lower 50s.
Thursday... Cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Highs in the lower 60s.
Thursday Night... Windy. Cloudy with rain likely. Lows in the upper 40s.
Friday... Windy. Rain at times. Highs in the mid 50s.
Friday Night... Windy. Rain at times. Lows in the mid to upper 40s.
Saturday... Windy. Rain at times. Highs in the lower to mid 50s.
Saturday Night... Windy. Rain at times. Lows in the lower to mid 40s.
POP = Probability of Precipitation
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