National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Bolinder Field-Tooele Valley Airport (KTVY)

Lat: 40.61269°NLon: 112.35362°WElev: 4291.0ft.

Clear

91°F

33°C

Humidity 19%
Wind Speed SE 10 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 27 Aug 07:15 PM MDT
Extended Forecast for

Grantsville UT

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 71. South wind around 9 mph. Chance of precipitation is 30%.

    Low: 71 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Scattered showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 91. South southwest wind around 9 mph. Chance of precipitation is 30%.

    High: 91 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 64. North wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 40%.

    Low: 64 °F

    Scattered
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Light and variable wind becoming north northwest 5 to 7 mph in the morning. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 61. Northeast wind 7 to 9 mph becoming south southwest after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers

  • Sunday

    Sunday: Scattered showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60.

    Low: 60 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 84.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62.

    Low: 62 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 71. South wind around 9 mph. Chance of precipitation is 30%.
Friday
Scattered showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 91. South southwest wind around 9 mph. Chance of precipitation is 30%.
Friday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 64. North wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 40%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Light and variable wind becoming north northwest 5 to 7 mph in the morning. Chance of precipitation is 70%.
Saturday Night
Showers and possibly a thunderstorm. Low around 61. Northeast wind 7 to 9 mph becoming south southwest after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Scattered showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Sunday Night
A 10 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60.
Monday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 84.
Monday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62.
Tuesday
Sunny, with a high near 86.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 62.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
Wednesday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Grantsville UT
 40.61°N 112.46°W (Elev. 4219 ft)
Last Update:
12:31 pm MDT Aug 27, 2026
Forecast Valid:
7pm MDT Aug 27, 2026-6pm MDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation