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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Salt Lake City, Salt Lake City International Airport (KSLC)

Lat: 40.77069°NLon: 111.96503°WElev: 4226.0ft.

Partly Cloudy

90°F

32°C

Humidity 15%
Wind Speed ESE 3 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 17 Aug 06:20 PM MDT
Extended Forecast for

Magna UT

  • Tonight

    Tonight: Mostly clear, with a low around 69. South wind 6 to 10 mph.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. South wind around 10 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69. Northwest wind around 7 mph becoming southeast in the evening.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 97. Southeast wind 6 to 8 mph becoming northwest in the afternoon.

    High: 97 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. Northwest wind 5 to 7 mph becoming southeast after midnight.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 97.

    High: 97 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.

    Low: 72 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 71.

    Low: 71 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 69. South wind 6 to 10 mph.
Monday
Sunny, with a high near 94. South wind around 10 mph.
Monday Night
Mostly clear, with a low around 69. Northwest wind around 7 mph becoming southeast in the evening.
Tuesday
Sunny, with a high near 97. Southeast wind 6 to 8 mph becoming northwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 72. Northwest wind 5 to 7 mph becoming southeast after midnight.
Wednesday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 97.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Thursday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 94.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 71.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 95.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Magna UT
 40.71°N 112.1°W (Elev. 4236 ft)
Last Update:
3:05 pm MDT Aug 17, 2025
Forecast Valid:
6pm MDT Aug 17, 2025-6pm MDT Aug 24, 2025
 
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