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Castleton, UT Weather Forecast
Castleton, UT Weather Forecast Date: 1131 PM MDT Sun Sep 06 2026
The area/counties/county of: Arches/Grand Flat, including the cities of: Moab, Arches National Park, Castle Valley, and Thompson Springs.or toggle through each period.
Overnight... Mostly cloudy. Lows in the 60s.
Labor Day... Mostly sunny in the morning, then becoming partly sunny. Highs 85 to 95. Southwest winds 10 to 15 mph in the afternoon. Gusts up to 25 mph.
Monday Night... Partly cloudy. Lows in the 60s. Southwest winds 10 to 15 mph with gusts up to 20 mph in the evening, becoming light.
Tuesday... Sunny. Highs 85 to 95.
Tuesday Night... Mostly clear. Lows 55 to 65.
Wednesday... Mostly clear. Highs 85 to 95. Lows in the 60s.
Wednesday Night... Mostly clear. Highs 85 to 95. Lows in the 60s.
Thursday... Sunny. Highs in the 90s.
Thursday Night... Mostly clear. Lows in the 60s. Highs 95 to 100.
Friday... Mostly clear. Lows in the 60s. Highs 95 to 100.
Saturday... Sunny. Slight chance of showers in the afternoon. Highs 85 to 95. Chance of rain 10%.
Saturday Night... Partly cloudy. Slight chance of showers and thunderstorms in the evening. Lows in the 60s. Chance of rain 10%.
POP = Probability of Precipitation
Castleton Radar Loop
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