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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 >

Hazardous Weather Conditions

Current conditions at

Mondell Field (KECS)

Lat: 43.89°NLon: 104.32°WElev: 4173ft.

Fair

75°F

24°C

Humidity 50%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Aug 11:15 am MDT
Extended Forecast for

Upton WY

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 58. East wind around 5 mph becoming northwest after midnight.

    Low: 58 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 90. Southeast wind around 5 mph becoming northwest in the afternoon.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. North wind around 5 mph becoming calm after midnight.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. Southeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 97. South wind around 10 mph, with gusts as high as 20 mph.

    High: 97 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 58. East wind around 5 mph becoming northwest after midnight.
Monday
Sunny, with a high near 90. Southeast wind around 5 mph becoming northwest in the afternoon.
Monday Night
Mostly clear, with a low around 58. North wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 94. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 63. Southeast wind around 10 mph, with gusts as high as 15 mph.
Wednesday
Sunny, with a high near 97. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 65. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 91.
Thursday Night
A chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 57.
Friday
A chance of showers and thunderstorms. Sunny, with a high near 82.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Upton WY
 44.1°N 104.62°W (Elev. 4262 ft)
Last Update:
9:09 am MDT Aug 17, 2025
Forecast Valid:
11am MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation