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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Nephi Municipal Airport (KU14)

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

Clear

46°F

8°C

Humidity 81%
Wind Speed SSE 5 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 20 Sep 02:15 AM MDT
Extended Forecast for

Mona UT

  • Overnight

    Overnight: Mostly clear, with a low around 40. North wind around 5 mph becoming calm.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 74. Light and variable wind.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40. North wind 3 to 6 mph.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 45. Light and variable wind becoming east around 5 mph in the evening.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 41. Chance of precipitation is 30%.

    Low: 41 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 40. North wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 74. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 40. North wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 80. Light and variable wind.
Monday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 45. Light and variable wind becoming east around 5 mph in the evening.
Tuesday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 41. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mona UT
 39.82°N 111.86°W (Elev. 4902 ft)
Last Update:
12:31 am MDT Sep 20, 2026
Forecast Valid:
2am MDT Sep 20, 2026-6pm MDT Sep 26, 2026
 
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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