Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

ST. IGNATIUS (SIGM)

Lat: 47.31333°NLon: 114.09806°WElev: 2990.0ft.

NA

68°F

20°C

Humidity 55%
Wind Speed SSE 3 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 17 Aug 11:00 PM MDT
Extended Forecast for

9 Miles W St. Ignatius MT

  • Overnight

    Overnight: Partly cloudy, with a low around 54. Light southeast wind.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 87. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 87 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. West wind 5 to 9 mph becoming south after midnight.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 88. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. West wind 5 to 7 mph becoming light and variable  after midnight.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of rain before midnight.  Mostly cloudy, with a low around 58.

    Low: 58 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 54. Light southeast wind.
Tuesday
Increasing clouds, with a high near 87. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 52. West wind 5 to 9 mph becoming south after midnight.
Wednesday
Sunny, with a high near 88. Calm wind becoming west northwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 53. West wind 5 to 7 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 91.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 93.
Friday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 58.
Saturday
A slight chance of rain after noon. Mostly sunny, with a high near 88.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles W St. Ignatius MT
 47.33°N 114.28°W (Elev. 2789 ft)
2:01 pm MDT Aug 17, 2026
12am MDT Aug 18, 2026-6pm MDT Aug 24, 2026
 
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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