Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

ST. IGNATIUS (SIGM)

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

NA

55°F

13°C

Humidity 88%
Wind Speed SSE 2 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 19 Sep 04:00 AM MDT
Extended Forecast for

St. Ignatius MT

  • Today

    Today: A slight chance of rain between 2pm and 3pm.  Cloudy through mid morning, then gradual clearing, with a high near 72. Calm wind becoming north around 5 mph.  Chance of precipitation is 20%.

    High: 72 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: Partly cloudy, with a low around 48. Calm wind becoming south southeast 5 to 9 mph in the evening.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 76. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 48. Calm wind becoming east southeast around 6 mph.

    Low: 48 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 79. Light and variable wind.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
A slight chance of rain between 2pm and 3pm. Cloudy through mid morning, then gradual clearing, with a high near 72. Calm wind becoming north around 5 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 48. Calm wind becoming south southeast 5 to 9 mph in the evening.
Sunday
Sunny, with a high near 76. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Clear, with a low around 48. Calm wind becoming east southeast around 6 mph.
Monday
Sunny, with a high near 79. Light and variable wind.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
St. Ignatius MT
 47.31°N 114.12°W (Elev. 3081 ft)
2:01 am MDT Sep 19, 2026
5am MDT Sep 19, 2026-6pm MDT Sep 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database