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Ulm, AR Weather Forecast
Ulm, AR Weather Forecast Date: 350 AM CDT Sat Sep 12 2026
The area/counties/county of: Prairie, including the cities of: Des Arc, Hazen, and De Valls Bluff.or toggle through each period.
Today... Mostly sunny early this morning, then becoming sunny. A slight chance of showers with isolated thunderstorms early this morning. Highs in the upper 90s. Southeast winds 5 to 10 mph, becoming west this afternoon. Chance of rain 20%. Average rainfall less than 1/10 inch. Heat index values up to 106.
Tonight... Mostly clear. Lows in the lower 70s. Southeast winds around 5 mph.
Sunday... Sunny. Highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 108.
Sunday Night... Mostly clear. Lows in the mid 70s. South winds around 5 mph.
Monday... Sunny, hot with highs around 100. South winds around 5 mph. Heat index values up to 109.
Monday Night... Mostly clear. Lows in the mid 70s. Highs in the upper 90s. Heat index values up to 110.
Tuesday... Mostly clear. Lows in the mid 70s. Highs in the upper 90s. Heat index values up to 110.
Wednesday... Mostly clear. Lows in the mid 70s. Highs in the upper 90s. Heat index values up to 110.
Thursday... Mostly clear. Lows in the mid 70s. Highs in the upper 90s. Heat index values up to 110.
POP = Probability of Precipitation
Ulm Radar Loop
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