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

Dense Plumes of Canadian Smoke Plague the Eastern U.S.

A persistent low pressure system in the Northeast combined with large Canadian wildfires producing a tremendous amount of smoke has resulted in deep plumes of smoke spreading into the Northeast, Mid-Atlantic, and Ohio Valleys. Unhealthy air quality alerts produced by the EPA are in effect for many high population urban centers along the I-95 corridor. Hazy conditions extend into the central U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Partly Cloudy

66°F

19°C

Humidity 68%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 08 Jun 11:35 AM MDT
Extended Forecast for

Lewistown MT

Flood Watch until June 10, 06:00am
Flood Advisory until June 8, 03:00pm
Click here for hazard details and duration
Flood Watch
Flood Advisory
  •  
    Flood Watch until June 10, 06:00am
    Flood Advisory until June 8, 03:00pm

    NOW: Multiple
    hazards in effect

    Click HERE for Details

  • This
    Afternoon

    This Afternoon: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. Some of the storms could produce heavy rain. High near 71. North northeast wind 6 to 9 mph becoming east southeast. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Heavy Rain

    High: 71 °F

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 2am. Some of the storms could produce heavy rain. Low around 55. East wind 6 to 10 mph becoming south southeast in the evening. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Heavy Rain

    Low: 55 °F

  • Friday

    Friday: Isolated showers and thunderstorms, then showers and possibly a thunderstorm after 7am. Some of the storms could produce heavy rain. Patchy fog between 7am and 9am. High near 73. East wind 5 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Heavy Rain
    and Patchy
    Fog then
    Heavy Rain

    High: 73 °F

  • Friday
    Night

    Friday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rain. Low around 55. East northeast wind 5 to 9 mph. Chance of precipitation is 90%.

    Heavy Rain

    Low: 55 °F

  • Saturday

    Saturday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rain. High near 68. Light east southeast wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 90%.

    Heavy Rain

    High: 68 °F

  • Saturday
    Night

    Saturday Night: Showers and possibly a thunderstorm, mainly before 1am, then a slight chance of showers and thunderstorms after 1am. Low around 51. Southeast wind 7 to 11 mph. Chance of precipitation is 90%.

    Showers then
    Showers
    Likely

    Low: 51 °F

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 72. Southeast wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    Slight Chance
    T-storms then
    Chance
    Showers

    High: 72 °F

  • Sunday
    Night

    Sunday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 50. East southeast wind 7 to 15 mph, with gusts as high as 23 mph.

    Chance
    Showers

    Low: 50 °F

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. Some of the storms could produce heavy rain. High near 71. North northeast wind 6 to 9 mph becoming east southeast. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms, mainly before 2am. Some of the storms could produce heavy rain. Low around 55. East wind 6 to 10 mph becoming south southeast in the evening. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday
Isolated showers and thunderstorms, then showers and possibly a thunderstorm after 7am. Some of the storms could produce heavy rain. Patchy fog between 7am and 9am. High near 73. East wind 5 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rain. Low around 55. East northeast wind 5 to 9 mph. Chance of precipitation is 90%.
Saturday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rain. High near 68. Light east southeast wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm, mainly before 1am, then a slight chance of showers and thunderstorms after 1am. Low around 51. Southeast wind 7 to 11 mph. Chance of precipitation is 90%.
Sunday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 72. Southeast wind 6 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 50. East southeast wind 7 to 15 mph, with gusts as high as 23 mph.
Monday
A slight chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 72.
Monday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 51.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 72.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 ft)
Last Update:
10:44 am MDT Jun 8, 2023
Forecast Valid:
12pm MDT Jun 8, 2023-6pm MDT Jun 14, 2023
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation