



Threats For Heavy Rain and Severe Thunderstorms Continue in the Plains; Fire Weather Conditions Worsen in the Southwest
On Monday and Tuesday, the focus for heavy rain and severe thunderstorms will continue in the Plains and central Mississippi River Valley. Meanwhile, hot conditions and Critical Fire Weather looms over the Great Basin and Southwest U.S. through midweek. Read More >
Current conditions at
Lewistown, Lewistown Municipal Airport (KLWT)
Lat: 47.04917°NLon: 109.46639°WElev: 4167.0ft.
Clear
54°F
12°C
Humidity | 93% |
Wind Speed | SE 4 MPH |
Barometer | 30.07 in (1018.29 mb) |
Dewpoint | 52°F (11°C) |
Visibility | 10.00 mi |
Last update | 16 Jun 02:20 AM MDT |
Extended Forecast for
3 Miles NW Lewistown MT
Overnight
Low: 49 °F
Patchy Fog
Monday
High: 73 °F
Slight Chance
Showers then
Chance
T-stormsMonday Night
Low: 48 °F
Chance
ShowersTuesday
High: 73 °F
Chance
Showers then
Chance
T-stormsTuesday Night
Low: 48 °F
Mostly Clear
Wednesday
High: 78 °F
Sunny
Wednesday Night
Low: 50 °F
Mostly Clear
Juneteenth
High: 81 °F
Sunny
Thursday Night
Low: 51 °F
Chance
T-storms then
Chance
Showers
Detailed Forecast
Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 49. Calm wind.
Monday
A slight chance of showers between 10am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 73. Calm wind becoming south southeast around 5 mph in the afternoon. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 48. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 50%.
Tuesday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 73. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 50%.
Tuesday Night
Mostly clear, with a low around 48. West wind around 6 mph becoming south in the evening.
Wednesday
Sunny, with a high near 78. Southwest wind 5 to 7 mph becoming west northwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 50. Northwest wind around 6 mph becoming light and variable after midnight.
Juneteenth
Sunny, with a high near 81. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 76.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 47.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 67.
Saturday Night
Showers likely. Mostly cloudy, with a low around 41.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
3 Miles NW Lewistown MT
47.11°N 109.46°W (Elev. 3898 ft)
47.11°N 109.46°W (Elev. 3898 ft)
10:14 pm MDT Jun 15, 2025
2am MDT Jun 16, 2025-6pm MDT Jun 22, 2025