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

Severe Thunderstorms for Mid-Atlantic and Northeast; Typhoon Approaching Guam

A cold front will sweep eastward today accompanied by strong to severe thunderstorms for the mid-Atlantic and Northeast today. In the wake of this cold front, autumn like temperatures and gusty winds from the Plains, Mississippi Valley, Great Lakes to most of the eastern seaboard. Fire weather conditions for lower Mississippi Valley into portions of California. For Guam, a typhoon is approaching. Read More >

Hazardous Weather Conditions

Current conditions at

ST. IGNATIUS (SIGM)

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

NA

43°F

6°C

Humidity 82%
Wind Speed NNW 2 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 16 Oct 11:00 AM MDT
Extended Forecast for

4 Miles E St. Ignatius MT

Lake Wind Advisory October 17, 02:00pm until October 17, 07:00pm
Click here for hazard details and duration
Lake Wind Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 46. East southeast wind 8 to 11 mph.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68. East southeast wind 9 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 22 mph.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41. West wind 6 to 11 mph becoming light and variable after midnight.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59. Light and variable wind.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. Calm wind becoming east around 5 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 46. East southeast wind 8 to 11 mph.
Saturday
Mostly sunny, with a high near 68. East southeast wind 9 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 41. West wind 6 to 11 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 59. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 43. Calm wind becoming east around 5 mph.
Monday
Mostly sunny, with a high near 65.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 43.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
A chance of rain. Mostly sunny, with a high near 58.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 42.
Friday
Rain likely. Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E St. Ignatius MT
 47.32°N 114.02°W (Elev. 3396 ft)
Last Update:
2:01 pm MDT Oct 16, 2026
Forecast Valid:
9pm MDT Oct 16, 2026-6pm MDT Oct 23, 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