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Isaias Expected To Be A Strong Hurricane Approaching The Northern Gulf Coast Friday

Isaias is expected to strengthen and be a strong hurricane when it approaches the northern Gulf Coast on Friday. Damaging hurricane-force winds and life-threatening storm surge impacts are expected Friday into Saturday. Isaias will bring heavy rainfall to the northern Gulf Coast and much of the Southeast U.S. Friday into the weekend. Read More >

Current conditions at

Lewistown Divide MT-200 MP 90.3 (MTLEW)

Lat: 47.07579°NLon: 109.26247°WElev: 4723.0ft.

NA

53°F

12°C

Humidity 40%
Wind Speed SE 2 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 07 Oct 11:45 PM MDT
Extended Forecast for

Lewistown Municipal MT

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 49. South southeast wind around 6 mph.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 75. South wind around 6 mph becoming calm in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50. Light and variable wind becoming south 6 to 11 mph in the evening. Winds could gust as high as 20 mph.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81. West southwest wind 11 to 18 mph, with gusts as high as 28 mph.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44. Southwest wind 5 to 8 mph.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of rain. Partly sunny, with a high near 58. Northwest wind 5 to 13 mph, with gusts as high as 22 mph.

    High: 58 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain and snow. Low around 25. North northwest wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Rain/Snow

  • Sunday

    Sunday: Snow. Cloudy, with a high near 38. North northeast wind 6 to 8 mph.

    High: 38 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely. Cloudy, with a low around 23.

    Low: 23 °F

    Snow Likely

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 49. South southeast wind around 6 mph.
Thursday
Mostly sunny, with a high near 75. South wind around 6 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 50. Light and variable wind becoming south 6 to 11 mph in the evening. Winds could gust as high as 20 mph.
Friday
Mostly sunny, with a high near 81. West southwest wind 11 to 18 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 44. Southwest wind 5 to 8 mph.
Saturday
A 50 percent chance of rain. Partly sunny, with a high near 58. Northwest wind 5 to 13 mph, with gusts as high as 22 mph.
Saturday Night
Rain and snow. Low around 25. North northwest wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday
Snow. Cloudy, with a high near 38. North northeast wind 6 to 8 mph.
Sunday Night
Snow likely. Cloudy, with a low around 23.
Columbus Day
A chance of snow before noon. Partly sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Sunny, with a high near 54.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 32.
Wednesday
A chance of rain. Partly sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
Last Update:
10:31 pm MDT Oct 7, 2026
Forecast Valid:
12am MDT Oct 8, 2026-6pm MDT Oct 14, 2026
 
Forecast Discussion
 
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Additional Resources

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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