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

ST. IGNATIUS (SIGM)

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

NA

43°F

6°C

Humidity 61%
Wind Speed N 4 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 05 Mar 06:00 PM MST
Extended Forecast for

St. Ignatius MT

  • Tonight

    Tonight: A chance of rain, possibly mixing with snow after midnight, then gradually ending. Mostly cloudy, with a low around 31. West northwest wind 5 to 8 mph becoming light and variable in the evening. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Friday

    Friday: A chance of snow before 1pm, then a slight chance of rain and snow between 1pm and 2pm, then a chance of rain after 2pm. Mostly cloudy, with a high near 45. East southeast wind 5 to 9 mph becoming west northwest in the afternoon. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 45 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain before 2am, then snow likely, possibly mixed with rain. Cloudy, with a low around 34. West northwest wind 5 to 8 mph becoming light and variable. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 34 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Saturday

    Saturday: Rain and snow likely, becoming all rain after 8am. Cloudy, with a high near 50. Southwest wind 5 to 7 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 50 °F

    Rain/Snow
    Likely then
    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 40. South southwest wind around 8 mph.

    Low: 40 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.

    High: 54 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 38. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain Likely

  • Monday

    Monday: A chance of rain before 8am, then a chance of snow between 8am and 11am, then rain likely after 11am. Mostly cloudy, with a high near 47.

    High: 47 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Snow

Detailed Forecast

Tonight
A chance of rain, possibly mixing with snow after midnight, then gradually ending. Mostly cloudy, with a low around 31. West northwest wind 5 to 8 mph becoming light and variable in the evening. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday
A chance of snow before 1pm, then a slight chance of rain and snow between 1pm and 2pm, then a chance of rain after 2pm. Mostly cloudy, with a high near 45. East southeast wind 5 to 9 mph becoming west northwest in the afternoon. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday Night
A chance of rain before 2am, then snow likely, possibly mixed with rain. Cloudy, with a low around 34. West northwest wind 5 to 8 mph becoming light and variable. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
Rain and snow likely, becoming all rain after 8am. Cloudy, with a high near 50. Southwest wind 5 to 7 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 40. South southwest wind around 8 mph.
Sunday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
Sunday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 38. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of rain before 8am, then a chance of snow between 8am and 11am, then rain likely after 11am. Mostly cloudy, with a high near 47.
Monday Night
A chance of snow. Mostly cloudy, with a low around 27.
Tuesday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 39.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 25.
Wednesday
Snow likely. Mostly cloudy, with a high near 43.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 31.
Thursday
Rain and snow likely. Mostly cloudy, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
St. Ignatius MT
 47.31°N 114.12°W (Elev. 3081 ft)
Last Update:
1:00 pm MST Mar 5, 2026
Forecast Valid:
7pm MST Mar 5, 2026-6pm MDT Mar 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation