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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

ST. IGNATIUS (SIGM)

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

NA

33°F

1°C

Humidity 98%
Wind Speed S 1 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 12 Oct 01:00 AM MDT
Extended Forecast for

St. Ignatius MT

Lake Wind Advisory until October 12, 06:00am
Click here for hazard details and duration
Lake Wind Advisory
  •  
    Lake Wind Advisory until October 12, 06:00am

    NOW until 6:00am Mon

    Lake Wind Advisory

  • Overnight

    Low: 34 °F

    Slight Chance
    Rain/Snow

  • Columbus Day

    Columbus Day: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 48. Light and variable wind.

    High: 48 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 23. Light and variable wind.

    Low: 23 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, sunny, with a high near 53. Light and variable wind.

    High: 53 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. Calm wind becoming east southeast around 6 mph.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 30.

    Low: 30 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

Detailed Forecast

Overnight
A slight chance of rain and snow before 2am. Mostly cloudy, with a low around 34. Light southwest wind. Chance of precipitation is 20%.
Columbus Day
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 48. Light and variable wind.
Monday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 23. Light and variable wind.
Tuesday
Patchy fog before 10am. Otherwise, sunny, with a high near 53. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 26. Calm wind becoming east southeast around 6 mph.
Wednesday
Sunny, with a high near 57.
Wednesday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 30.
Thursday
Sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
St. Ignatius MT
 47.31°N 114.09°W (Elev. 2999 ft)
Last Update:
12:22 am MDT Oct 12, 2026
Forecast Valid:
1am MDT Oct 12, 2026-6pm MDT Oct 18, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation