I-15 weather conditions near Saint George, Utah
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Clear 106°F 2025-08-13T19:45:00 
Tonight 2025-08-13, Mostly Clear. Mostly clear, with a low around 75. West southwest wind 6 to 11 mph becoming light and variable after midnight.
Thursday 2025-08-14, Hot. Sunny and hot, with a high near 105. Light and variable wind becoming southwest 6 to 11 mph in the afternoon.Thursday Night 2025-08-14, Slight Chance T-storms then Mostly Clear. A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly clear, with a low around 73. South southwest wind 6 to 13 mph becoming east after midnight. Chance of precipitation is 20%.
Friday 2025-08-15, Slight Chance Showers then Chance T-storms. A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny and hot, with a high near 100. Calm wind becoming southwest 5 to 9 mph in the afternoon. Chance of precipitation is 40%.
Friday Night 2025-08-15, Chance T-storms then Slight Chance T-storms. A 40 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 71. Southwest wind 6 to 10 mph becoming east after midnight.
Saturday 2025-08-16, Chance T-storms. A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 98.- Saturday Night 2025-08-16, Clear. Clear, with a low around 70.
- Sunday 2025-08-17, Hot. Sunny and hot, with a high near 100.
- Sunday Night 2025-08-17, Clear. Clear, with a low around 69.
- Monday 2025-08-18, Hot. Sunny and hot, with a high near 101.
- Monday Night 2025-08-18, Clear. Clear, with a low around 70.
- Tuesday 2025-08-19, Hot. Sunny and hot, with a high near 103.
- Tuesday Night 2025-08-19, Mostly Clear. Mostly clear, with a low around 72.
- Wednesday 2025-08-20, Hot. Sunny and hot, with a high near 105.