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Grass Lake, UT Weather Forecast
Grass Lake, UT Weather Forecast Date: 1004 PM MDT Thu Oct 08 2026
The area/counties/county of: Southern Mountains, including: Brian Head and Alton.or toggle through each period.
Tonight... Mostly clear. Lows in the mid 40s.
Friday... Sunny in the morning then becoming partly cloudy. Highs around 60.
Friday Night... A 20% chance of rain showers after midnight. Partly cloudy. Lows in the mid 40s.
Saturday... Breezy. Partly cloudy with a slight chance of rain showers in the morning, then mostly cloudy with rain showers and a slight chance of thunderstorms in the afternoon. Highs in the lower 50s. South winds 15 to 25 mph. Chance of precipitation 80%.
Saturday Night... Breezy. Rain showers likely and a slight chance of thunderstorms in the evening, then rain showers and a slight chance of thunderstorms after midnight. Some thunderstorms May produce heavy rainfall. Lows around 40. South winds 15 to 25 mph. Chance of precipitation near 100%.
Sunday... Rain showers and a slight chance of thunderstorms. Some thunderstorms May produce heavy rainfall. Highs in the mid 40s. South winds 15 to 25 mph. Chance of precipitation near 100%.
Sunday Night... Windy. Rain showers. Lows around 40. Chance of showers near 100%.
Columbus Day... Rain showers. Highs in the mid 40s. Chance of showers 90%.
Monday Night... Mostly cloudy. A chance of rain and snow showers likely in the evening, then snow showers likely and a chance of rain showers after midnight. Lows in the mid 30s. Chance of precipitation 70%.
Tuesday... Mostly cloudy. Snow showers likely and a chance of rain showers in the morning, then rain and snow showers likely in the afternoon. Highs in the lower 40s. Chance of precipitation 60%.
Tuesday Night... Mostly cloudy with a chance of rain and snow showers. Lows in the lower 30s. Chance of precipitation 50%.
Wednesday... Partly sunny. A chance of snow showers and rain showers. Highs in the lower 40s. Chance of precipitation 40%.
Wednesday Night... Partly cloudy. A chance of snow showers and rain showers in the evening, then a chance of snow showers after midnight. Lows around 30. Chance of precipitation 40%.
POP = Probability of Precipitation
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