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Flat Lake, UT Weather Forecast
Flat Lake, UT Weather Forecast Date: 1244 PM MDT Mon Aug 17 2026
The area/counties/county of: Southern Mountains, including: Brian Head and Alton.or toggle through each period.
Tonight... Partly cloudy. Lows in the mid 50s.
Tuesday... A 20% chance of showers and thunderstorms in the afternoon. Partly cloudy. Highs in the lower 70s.
Tuesday Night... 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 lower 70s.
Wednesday Night... Partly cloudy. Lows in the upper 50s.
Thursday... A 10% chance of showers and thunderstorms in the afternoon. Partly cloudy. Highs in the lower 70s.
Thursday Night... 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. Lows in the upper 50s. Highs around 70.
Saturday... Mostly cloudy. Lows in the upper 50s. Highs around 70.
Saturday Night... Mostly cloudy with a chance of rain showers in the evening, then partly cloudy after midnight. Lows in the mid 50s. Chance of showers 40%.
Sunday... Partly cloudy in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 30%.
Sunday Night... Mostly cloudy with a chance of rain showers in the evening, then partly cloudy after midnight. Lows in the mid 50s. Chance of showers 30%.
POP = Probability of Precipitation
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