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

Sky Warn 2026

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Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

Lat: 47.91973°NLon: 104.32619°WElev: 2480.0ft.

NA

51°F

11°C

Humidity 45%
Wind Speed SSW 10 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 20 May 08:00 AM MDT
Extended Forecast for

15 Miles SW Culbertson MT

  • Today

    Today: A chance of showers, with thunderstorms also possible after 3pm. Increasing clouds, with a high near 72. South southwest wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 50%.

    High: 72 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 41. West northwest wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

    Low: 41 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Cloudy, with a high near 65. North northwest wind 3 to 7 mph. Chance of precipitation is 50%.

    High: 65 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 41. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 41 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers, mainly before noon. Mostly sunny, with a high near 69. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 69 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. West wind around 6 mph becoming light and variable.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 78. South wind 3 to 7 mph.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 49. Southwest wind 6 to 8 mph becoming southeast in the evening.

    Low: 49 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 84. South wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 3pm. Increasing clouds, with a high near 72. South southwest wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 50%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 41. West northwest wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Thursday
A chance of showers, with thunderstorms also possible after noon. Cloudy, with a high near 65. North northwest wind 3 to 7 mph. Chance of precipitation is 50%.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 41. Northwest wind 5 to 7 mph becoming calm in the evening.
Friday
A 30 percent chance of showers, mainly before noon. Mostly sunny, with a high near 69. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 42. West wind around 6 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 78. South wind 3 to 7 mph.
Saturday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 49. Southwest wind 6 to 8 mph becoming southeast in the evening.
Sunday
Mostly sunny, with a high near 84. South wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 52. West wind 5 to 10 mph becoming south after midnight.
Memorial Day
Mostly sunny, with a high near 91. South southwest wind 7 to 14 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 88. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles SW Culbertson MT
 47.96°N 104.71°W (Elev. 2198 ft)
Last Update:
4:01 am MDT May 20, 2026
Forecast Valid:
8am MDT May 20, 2026-6pm MDT May 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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