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Bonanza, UT Weather Forecast
Bonanza, UT Weather Forecast Date: 1226 AM MDT Tue Sep 15 2026
The area/counties/county of: Eastern Uinta Basin, including the cities of: Vernal, Jensen, Ballard, Fort Duchesne, Randlett, and Dinosaur National Monument.or toggle through each period.
Rest of Tonight... Mostly clear. Lows 45 to 55.
Tuesday... Sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the 70s. South winds 10 to 15 mph with gusts up to 20 mph in the afternoon. Chance of rain 30%.
Tuesday Night... Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows 45 to 55. Chance of rain 40%.
Wednesday... Mostly sunny. Slight chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs 65 to 75. Chance of rain 20%.
Wednesday Night... Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows 45 to 55. Chance of rain 60%.
Thursday... Showers likely with a chance of thunderstorms. Highs 65 to 75. Lows 45 to 55. Chance of rain 60%.
Thursday Night... Showers likely with a chance of thunderstorms. Highs 65 to 75. Lows 45 to 55. Chance of rain 60%.
Friday... Mostly sunny with a slight chance of showers and thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs 65 to 75. Chance of rain 30%.
Friday Night... Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the 40s. Chance of rain 30%.
Saturday... Sunny. Slight chance of showers in the afternoon. Highs 65 to 75. Chance of rain 10%.
Saturday Night... Mostly clear. Lows in the 40s. Highs 65 to 75.
Sunday... Mostly clear. Lows in the 40s. Highs 65 to 75.
Sunday Night... Partly cloudy. Lows in the 40s.
POP = Probability of Precipitation
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