Critical Fire Weather Threats in the West; Storms in the High Plains; Flash Flood Risk in the Mid-Atlantic

Critical fire weather conditions persist across portions of the Northwest, Northern Rockies and Great Basin. Severe thunderstorms with large hail and a few strong gusts are possible across parts of the northern and central Plains. Heavy rainfall brings a flash flooding risk to the Mid-Atlantic. Heat builds in the Southwest into California this week. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

Lat: 47.04917°NLon: 109.46639°WElev: 4167ft.

Clear

63°F

17°C

Humidity 42%
Wind Speed SE 5 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 11 Aug 11:35 PM MDT
Extended Forecast for

Lewistown MT

Red Flag Warning until August 12, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until August 12, 09:00pm

    NOW until
    9:00pm Wed

    Red Flag Warning

  • Overnight

    Overnight: Clear, with a low around 54. South southeast wind around 6 mph.

    Clear

    Low: 54 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 3pm.  Sunny, with a high near 88. Light and variable wind becoming north northwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph.

    Sunny then
    Slight Chance
    T-storms

    High: 88 °F

  • Wednesday
    Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight.  Mostly cloudy, with a low around 50. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    Chance
    Showers then
    Slight Chance
    T-storms

    Low: 50 °F

  • Thursday

    Thursday: A 20 percent chance of showers after noon.  Partly sunny, with a high near 78. Southwest wind 3 to 8 mph.

    Partly Sunny
    then Slight
    Chance
    Showers

    High: 78 °F

  • Thursday
    Night

    Thursday Night: A 30 percent chance of showers before midnight.  Partly cloudy, with a low around 47. West northwest wind around 7 mph becoming southwest after midnight.

    Chance
    Showers then
    Partly Cloudy

    Low: 47 °F

  • Friday

    Friday: Sunny, with a high near 80. West southwest wind 7 to 13 mph, with gusts as high as 21 mph.

    Sunny

    High: 80 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 47. West wind 6 to 9 mph, with gusts as high as 21 mph.

    Mostly Clear

    Low: 47 °F

  • Saturday

    Saturday: Sunny, with a high near 76. West wind 7 to 10 mph, with gusts as high as 20 mph.

    Sunny

    High: 76 °F

Detailed Forecast

Overnight
Clear, with a low around 54. South southeast wind around 6 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 88. Light and variable wind becoming north northwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 50. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of showers after noon. Partly sunny, with a high near 78. Southwest wind 3 to 8 mph.
Thursday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 47. West northwest wind around 7 mph becoming southwest after midnight.
Friday
Sunny, with a high near 80. West southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around 47. West wind 6 to 9 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 76. West wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 91.
Click Map For Forecast
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 ft)
11:07 pm MDT Aug 11, 2020
12am MDT Aug 12, 2020-6pm MDT Aug 17, 2020
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database