County Forecast for Cumberland , IA
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302200-
Cass-
Including the city of Atlantic
919 AM CDT Wed Sep 30 2026

..flood watch in effect through late thursday night   
Rest of today   Showers. Near steady temperature around 70. South winds around 5 mph. Chance of rain near 100 percent.
Tonight   Showers with a chance of thunderstorms. Some thunderstorms may produce heavy rainfall after midnight. Locally heavy rainfall possible in the evening. Humid. Near steady temperature in the upper 60s. Southeast winds around 5 mph, becoming northeast around 5 mph after midnight. Chance of rain near 100 percent.
Thursday   Cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Near steady temperature in the mid 60s. Northeast winds 10 to 15 mph. Chance of rain 50 percent.
Thursday night   Mostly cloudy with a slight chance of showers in the evening, then partly cloudy after midnight. Less humid with lows around 50. North winds 10 to 15 mph. Chance of rain 20 percent.
Friday   Sunny. Highs in the mid 60s. Northeast winds 5 to 10 mph.
Friday night   Mostly clear. Lows in the upper 40s.
Saturday   Sunny. Highs in the upper 60s.
Saturday night   Mostly clear. Lows in the lower 50s.
Sunday   Sunny. Highs in the mid 60s.
Sunday night   Mostly clear. Lows in the mid 40s.
Monday   Sunny. Highs in the lower 60s.
Monday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.
Tuesday   Mostly sunny. Highs in the upper 60s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Heavy Rain in Central US Wednesday
Posted at 5:34AM Wed Sep 30, 2026 CDT
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