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Grass Flat Reservoir, UT Weather Forecast
Grass Flat Reservoir, UT Weather Forecast Date: 1003 PM MDT Mon Oct 12 2026
The area/counties/county of: Central Mountains, including: Cove Fort, Fish Lake, and Joes Valley.or toggle through each period.
Tonight... Rain and snow showers and a slight chance of thunderstorms in the evening, then snow showers, rain showers likely and a slight chance of thunderstorms after midnight. Accumulation 1 inch. Snow level near 10000 feet lowering to near 8500 feet after midnight. Lows around 30. Chance of precipitation near 100%.
Tuesday... Snow showers likely in the morning, then snow showers and a slight chance of thunderstorms in the afternoon. Mostly cloudy. Little or no accumulation. Snow level near 7500 feet. Highs around 40. Chance of precipitation 90%.
Tuesday Night... Snow showers. Accumulation 1 to 3 inches. Snow level near 7500 feet. Lows in the upper 20s. Chance of snow 90%.
Wednesday... Snow showers in the morning, then snow showers, a slight chance of showers and thunderstorms in the afternoon. Accumulations possible. Highs in the upper 30s. Chance of precipitation 80%.
Wednesday Night... A chance of snow showers and a slight chance of rain showers in the evening, then a chance of snow showers after midnight. Mostly cloudy. Lows in the upper 20s. Chance of precipitation 50%.
Thursday... Partly cloudy in the morning then clearing. Highs in the upper 40s.
Thursday Night... Mostly clear. Lows around 30. Highs in the lower 50s.
Friday... Mostly clear. Lows around 30. Highs in the lower 50s.
Saturday... Mostly clear. Lows around 30. Highs in the lower 50s.
Sunday... Mostly clear. Lows around 30. Highs in the lower 50s.
POP = Probability of Precipitation
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