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

Nephi Municipal Airport (KU14)

Lat: 39.7386°NLon: 111.8722°WElev: 5022.0ft.

Partly Cloudy

68°F

20°C

Humidity 72%
Wind Speed ESE 11 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 28 Aug 08:15 PM MDT
Extended Forecast for

5 Miles E Mona UT

  • Tonight

    Tonight: Scattered showers and thunderstorms. Mostly cloudy, with a low around 51. South southwest wind 9 to 16 mph. Chance of precipitation is 50%.

    Low: 51 °F

    Scattered
    T-storms then
    Scattered
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. Steady temperature around 53. South southwest wind 14 to 16 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 53 °F

    Showers
    Likely then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 46. West wind 9 to 11 mph becoming north northeast in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Showers

  • Sunday

    Sunday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 56. South southeast wind 10 to 16 mph becoming west southwest in the afternoon. Chance of precipitation is 50%.

    High: 56 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Sunday Night

    Sunday Night: Isolated showers and thunderstorms before midnight. Partly cloudy, with a low around 45. West wind around 9 mph becoming east southeast after midnight. Chance of precipitation is 20%.

    Low: 45 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Scattered showers and thunderstorms after noon. Mostly sunny, with a high near 56. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Sunny then
    Scattered
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after midnight. Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Scattered showers and thunderstorms. Mostly cloudy, with a low around 51. South southwest wind 9 to 16 mph. Chance of precipitation is 50%.
Saturday
Showers and possibly a thunderstorm. Steady temperature around 53. South southwest wind 14 to 16 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 46. West wind 9 to 11 mph becoming north northeast in the evening. 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. Mostly cloudy, with a high near 56. South southeast wind 10 to 16 mph becoming west southwest in the afternoon. Chance of precipitation is 50%.
Sunday Night
Isolated showers and thunderstorms before midnight. Partly cloudy, with a low around 45. West wind around 9 mph becoming east southeast after midnight. Chance of precipitation is 20%.
Monday
Scattered showers and thunderstorms after noon. Mostly sunny, with a high near 56. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Sunny, with a high near 58.
Tuesday Night
A slight chance of showers after midnight. Partly cloudy, with a low around 47.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 55.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 46.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 57.
Thursday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 46.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Mona UT
 39.83°N 111.75°W (Elev. 9964 ft)
Last Update:
12:31 pm MDT Aug 28, 2026
Forecast Valid:
8pm MDT Aug 28, 2026-6pm MDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

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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