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

Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Current conditions at

WY28 - South Pass (KSOU)

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

NA

45°F

7°C

Humidity 95%
Wind Speed SSE 6 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility 1.24 mi
Wind Chill42°F (6°C)
Last update 11 Oct 06:42 AM MDT
Extended Forecast for

19 Miles E Boulder WY

  • Today

    Today: Rain, possibly mixed with snow showers, becoming all rain after 10am. Some thunder is also possible. High near 46. Breezy, with a south wind 7 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow
    then Showers
    and Breezy

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 29. Breezy, with a south wind 16 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 29 °F

    Showers and
    Breezy

  • Columbus Day

    Columbus Day: Rain, possibly mixed with snow showers, mainly after 3pm. Some thunder is also possible. Snow level 10100 feet. High near 44. Southwest wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Rain/Snow

  • Monday Night

    Monday Night: Rain showers before 9pm, then rain and snow showers between 9pm and 3am, then snow showers after 3am. Some thunder is also possible. Snow level 10000 feet lowering to 9300 feet after midnight . Low around 26. South southwest wind around 7 mph becoming southeast in the evening. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 26 °F

    Rain/Snow

  • Tuesday

    Tuesday: Snow showers before noon, then rain and snow showers. Some thunder is also possible. Snow level rising to 9700 feet in the afternoon. High near 42. South wind around 7 mph becoming east in the afternoon. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Snow Showers
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain and snow showers, becoming all snow after 9pm. Some thunder is also possible. Low around 23. Northeast wind 6 to 9 mph. Chance of precipitation is 90%.

    Low: 23 °F

    Rain/Snow
    then Snow
    Showers

  • Wednesday

    Wednesday: Snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 39. North northeast wind around 7 mph becoming west northwest in the afternoon. Chance of precipitation is 70%.

    High: 39 °F

    Snow Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow
    Showers

  • Thursday

    Thursday: A 30 percent chance of snow showers before noon. Mostly sunny, with a high near 42.

    High: 42 °F

    Chance Snow
    Showers then
    Sunny

Detailed Forecast

Today
Rain, possibly mixed with snow showers, becoming all rain after 10am. Some thunder is also possible. High near 46. Breezy, with a south wind 7 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tonight
Showers and possibly a thunderstorm. Low around 29. Breezy, with a south wind 16 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Columbus Day
Rain, possibly mixed with snow showers, mainly after 3pm. Some thunder is also possible. Snow level 10100 feet. High near 44. Southwest wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday Night
Rain showers before 9pm, then rain and snow showers between 9pm and 3am, then snow showers after 3am. Some thunder is also possible. Snow level 10000 feet lowering to 9300 feet after midnight . Low around 26. South southwest wind around 7 mph becoming southeast in the evening. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Tuesday
Snow showers before noon, then rain and snow showers. Some thunder is also possible. Snow level rising to 9700 feet in the afternoon. High near 42. South wind around 7 mph becoming east in the afternoon. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain and snow showers, becoming all snow after 9pm. Some thunder is also possible. Low around 23. Northeast wind 6 to 9 mph. Chance of precipitation is 90%.
Wednesday
Snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 39. North northeast wind around 7 mph becoming west northwest in the afternoon. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 21.
Thursday
A 30 percent chance of snow showers before noon. Mostly sunny, with a high near 42.
Thursday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 19.
Friday
Sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 23.
Saturday
Sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles E Boulder WY
 42.67°N 109.25°W (Elev. 9259 ft)
Last Update:
6:32 am MDT Oct 11, 2026
Forecast Valid:
6am MDT Oct 11, 2026-6pm MDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation