7-Day Zone Forecast for Foster County (Text-Only)
NWS Forecast for: Foster County
Issued by: National Weather Service Bismarck, ND
Last Update: 201 AM CDT Mon Sep 28 2026
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Rest Of Tonight: Cloudy with a chance of showers and thunderstorms. Lows in the lower 50s. East winds around 10 mph. Chance of rain 30 percent.

Monday: A chance of thunderstorms. Showers. Highs in the mid 60s. Southeast winds 10 to 15 mph with gusts up to 25 mph.

Monday Night: Showers and a chance of thunderstorms in the evening, then showers likely after midnight. Patchy fog after midnight. Lows in the mid 50s. Southeast winds 5 to 10 mph, becoming northwest after midnight.

Tuesday: Decreasing clouds. Patchy fog in the morning. Highs in the upper 60s. Northwest winds around 5 mph.

Tuesday Night: Mostly clear. Lows in the lower 50s. Southwest winds 5 to 10 mph.

Wednesday: Sunny. Highs around 70.

Wednesday Night: Partly cloudy in the evening then clearing. Lows in the lower 40s.

Thursday: Sunny. Highs in the lower 60s.

Thursday Night: Mostly clear. Lows around 40.

Friday: Sunny. Highs in the mid 60s.

Friday Night: Increasing clouds. Lows in the mid 40s.

Saturday: Partly sunny. Highs in the lower 60s.

Saturday Night: Partly cloudy. Lows in the lower 40s.

Sunday: Mostly sunny. Highs in the upper 50s.







Zone Forecast: Foster County

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