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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

WY28 - South Pass (KSOU)

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

NA

46°F

8°C

Humidity 41%
Wind Speed SW 10 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility 1.24 mi
Wind Chill41°F (5°C)
Last update 17 Oct 11:56 PM MDT
Extended Forecast for

18 Miles E Boulder WY

  • Overnight

    Overnight: Clear, with a low around 32. West northwest wind 5 to 7 mph.

    Low: 32 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 49. Light and variable wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 49 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31. Light and variable wind.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 48. Light and variable wind becoming west southwest 5 to 9 mph in the morning.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. West southwest wind around 5 mph becoming light and variable after midnight.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33. Light north northeast wind.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 32. West northwest wind 5 to 7 mph.
Sunday
Sunny, with a high near 49. Light and variable wind becoming west southwest 5 to 9 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 31. Light and variable wind.
Monday
Sunny, with a high near 48. Light and variable wind becoming west southwest 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 33. West southwest wind around 5 mph becoming light and variable after midnight.
Tuesday
Mostly sunny, with a high near 48. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 33. Light north northeast wind.
Wednesday
Mostly sunny, with a high near 49.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 49.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 35.
Friday
Rain and snow showers likely. Snow level 10600 feet lowering to 9800 feet in the afternoon . Mostly cloudy, with a high near 43.
Friday Night
Rain and snow showers likely. Mostly cloudy, with a low around 31.
Saturday
A chance of snow showers. Partly sunny, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles E Boulder WY
 42.71°N 109.26°W (Elev. 9511 ft)
Last Update:
11:46 pm MDT Oct 17, 2026
Forecast Valid:
12am MDT Oct 18, 2026-6pm MDT Oct 24, 2026
 
Forecast Discussion
 
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