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 >

Hazardous Weather Conditions

Current conditions at

WY28 - South Pass (KSOU)

Lat: 42.47752°NLon: 108.8444°WElev: 8196.0ft.

NA

N/A

Humidity 37%
Wind Speed ENE 2 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 12 Aug 09:51 AM MDT
Extended Forecast for

4 Miles ENE South Pass City WY

  • Overnight

    Overnight: Mostly clear, with a low around 54. North northwest wind 5 to 7 mph.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. Breezy, with a southwest wind 6 to 15 mph, with gusts as high as 21 mph.

    High: 79 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. West northwest wind 6 to 11 mph.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. Northwest wind 5 to 11 mph becoming south southwest in the afternoon. Winds could gust as high as 22 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59. West wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87. Breezy, with a west southwest wind 6 to 15 mph, with gusts as high as 28 mph.

    High: 87 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 61. West northwest wind 8 to 14 mph, with gusts as high as 25 mph.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 54. North northwest wind 5 to 7 mph.
Monday
Sunny, with a high near 79. Breezy, with a southwest wind 6 to 15 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 58. West northwest wind 6 to 11 mph.
Tuesday
Sunny, with a high near 84. Northwest wind 5 to 11 mph becoming south southwest in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 59. West wind 6 to 10 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 87. Breezy, with a west southwest wind 6 to 15 mph, with gusts as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 61. West northwest wind 8 to 14 mph, with gusts as high as 25 mph.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.
Thursday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 54.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE South Pass City WY
 42.49°N 108.72°W (Elev. 7799 ft)
Last Update:
12:42 am MDT Aug 18, 2025
Forecast Valid:
1am MDT Aug 18, 2025-6pm MDT Aug 24, 2025
 
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