Weather WorldGrass Lake, UT 7-Day Night Weather Forecast
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Grass Lake, UT Weather Forecast
Grass Lake, UT Weather Forecast Date: 1243 AM MDT Tue Aug 18 2026
The area/counties/county of: Southern Mountains, including: Brian Head and Alton.or toggle through each period.
Today... Partly cloudy. Highs in the lower 70s.
Tonight... A 10% chance of showers and thunderstorms in the evening. Partly cloudy. Lows in the upper 50s.
Wednesday... Sunny in the morning then becoming partly cloudy. Highs in the mid 70s.
Wednesday Night... Partly cloudy. Lows in the upper 50s.
Thursday... Sunny in the morning, then partly cloudy with a 20% chance of showers and thunderstorms in the afternoon. Highs in the mid 70s.
Thursday Night... A 10% chance of showers and thunderstorms in the evening. Partly cloudy. Lows in the upper 50s.
Friday... Partly cloudy in the morning, then mostly cloudy with rain showers likely and a chance of thunderstorms in the afternoon. Highs around 70. Chance of precipitation 70%.
Friday Night... Mostly cloudy. A chance of rain showers in the evening. Lows in the mid 50s. Chance of showers 30%.
Saturday... Partly sunny. A 30% chance of showers and thunderstorms in the afternoon. Highs in the upper 60s.
Saturday Night... Mostly cloudy. A 40% chance of showers and thunderstorms. Lows in the mid 50s. Highs in the mid 60s.
Sunday... Mostly cloudy. A 40% chance of showers and thunderstorms. Lows in the mid 50s. Highs in the mid 60s.
Sunday Night... Mostly cloudy with a chance of rain showers in the evening, then partly cloudy after midnight. Lows in the lower 50s. Chance of showers 30%.
POP = Probability of Precipitation
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