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

Extreme Heat Lingers; Severe Thunderstorms for Portions of the Plains and Southeast; Heavy Rainfall Threats

Gusty winds and heavy rainfall may impact the Big Island of Hawaii as a nearby tropical system passes west of the islands. From the Southwest U.S., Rockies and across the Gulf Coast, heavy rainfall could lead to isolated flash flooding. Severe thunderstorms are expected for areas of the Plains, Gulf Coast and Southeast through Tuesday. Extreme heat lingers for the southern Plains and Southwest. Read More >

Current conditions at

WY28 - South Pass (KSOU)

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

NA

75°F

24°C

Humidity 22%
Wind Speed WSW 11 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility 1.24 mi
Last update 24 Aug 02:42 PM MDT
Extended Forecast for

15 Miles NNW South Pass City WY

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Sunny early, then becoming mostly cloudy, with a high near 66. West southwest wind 11 to 14 mph, with gusts as high as 20 mph.

    High: 66 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely before 9pm, then a chance of showers between 9pm and midnight. Some of the storms could be severe. Mostly cloudy, with a low around 47. Breezy, with a west southwest wind 7 to 16 mph becoming northwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 60%.

    Low: 47 °F

    Breezy.
    Severe
    Thunderstorms
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 64. Breezy, with a northwest wind 7 to 12 mph becoming north northwest 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 64 °F

    Breezy.
    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 46. Northwest wind 5 to 9 mph becoming light west.

    Low: 46 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65. West wind 5 to 8 mph.

    High: 65 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 47. West wind 3 to 7 mph.

    Low: 47 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. West southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 66. Breezy.

    High: 66 °F

    Partly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Sunny early, then becoming mostly cloudy, with a high near 66. West southwest wind 11 to 14 mph, with gusts as high as 20 mph.
Tonight
Showers and thunderstorms likely before 9pm, then a chance of showers between 9pm and midnight. Some of the storms could be severe. Mostly cloudy, with a low around 47. Breezy, with a west southwest wind 7 to 16 mph becoming northwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 64. Breezy, with a northwest wind 7 to 12 mph becoming north northwest 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Tuesday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 46. Northwest wind 5 to 9 mph becoming light west.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65. West wind 5 to 8 mph.
Wednesday Night
A 10 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 47. West wind 3 to 7 mph.
Thursday
Mostly sunny, with a high near 67. West southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 50.
Friday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 66. Breezy.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 48. Breezy. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 61. Breezy.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. Breezy.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 60. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NNW South Pass City WY
 42.67°N 108.96°W (Elev. 9872 ft)
Last Update:
2:01 pm MDT Aug 24, 2026
Forecast Valid:
2pm MDT Aug 24, 2026-6pm MDT Aug 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation