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

FORT DUCHESNE (UINU1)

Lat: 40.28477°NLon: 109.86183°WElev: 4928.0ft.

NA

59°F

15°C

Humidity 81%
Wind Speed WNW 4 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 18 Sep 09:31 PM MDT
Extended Forecast for

Whiterocks UT

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 51. Northeast wind around 5 mph becoming calm.

    Low: 51 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 68. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 68 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 45. Calm wind becoming north around 5 mph.

    Low: 45 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. Calm wind becoming south southeast around 5 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47. Calm wind becoming north around 5 mph.

    Low: 47 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70.

    High: 70 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 51. Northeast wind around 5 mph becoming calm.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 68. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 45. Calm wind becoming north around 5 mph.
Sunday
Sunny, with a high near 66. Calm wind becoming south southeast around 5 mph.
Sunday Night
Partly cloudy, with a low around 47. Calm wind becoming north around 5 mph.
Monday
Sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Wednesday
A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Whiterocks UT
 40.47°N 109.9°W (Elev. 5971 ft)
Last Update:
9:37 pm MDT Sep 18, 2026
Forecast Valid:
10pm MDT Sep 18, 2026-6pm MDT Sep 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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