Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Heavy rain and flash flooding possible in portions of the Southwest this weekend

An upper-level low in the Southwest U.S. will act as a trigger for thunderstorms this weekend. The area of greatest concern is in New Mexico, southeast Utah and portions of southern Colorado. Storms will be slow moving and could bring several rounds of rain to the same areas. Rainfall amounts may exceed 3 inches in localized areas. Flash Flood Watches are in effect. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Fair

77°F

25°C

Humidity 18%
Wind Speed calm
Barometer 29.93 in (1009.8 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 18 Aug 7:54 pm MDT
Extended Forecast for

Lewistown MTSimilar City Names

Red Flag Warning until August 19, 06:00am
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until August 19, 06:00am

    NOW until
    6:00am Sat

    Red Flag Warning

  • Tonight

    Tonight: Mostly clear, with a low around 55. West wind around 6 mph becoming south southwest in the evening.

    Mostly Clear

    Low: 55 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Southwest wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    Mostly Sunny

    High: 81 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 51. North wind 7 to 9 mph becoming south southeast after midnight.

    Partly Cloudy

    Low: 51 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 80. South wind 6 to 9 mph becoming north northwest in the afternoon.

    Mostly Sunny

    High: 80 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 51. North northwest wind 5 to 9 mph becoming southwest after midnight.

    Partly Cloudy

    Low: 51 °F

  • Monday

    Monday: Partly sunny, with a high near 80.

    Partly Sunny

    High: 80 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 51.

    Mostly Clear

    Low: 51 °F

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    Sunny

    High: 86 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 55. West wind around 6 mph becoming south southwest in the evening.
Saturday
Mostly sunny, with a high near 81. Southwest wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 51. North wind 7 to 9 mph becoming south southeast after midnight.
Sunday
Mostly sunny, with a high near 80. South wind 6 to 9 mph becoming north northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 51. North northwest wind 5 to 9 mph becoming southwest after midnight.
Monday
Partly sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 82.
Click Map For Forecast
Point Forecast:
Lewistown MTSimilar City Names
 47.07°N 109.43°W (Elev. 3898 ft)
2:41 pm MDT Aug 18, 2017
8pm MDT Aug 18, 2017-6pm MDT Aug 25, 2017
 
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