Strong to Severe Thunderstorms in the East; Heat in the Central and Western U.S.

Strong to potentially severe thunderstorms with damaging wind gusts are forecast Thursday from parts of New England into the Mid Atlantic and Carolinas. Significant heat will expand across the West and Central Plains through Friday, potentially breaking daily high temperature records. Dangerous heat will then build into the Eastern U.S. this weekend through much of next week. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

Lat: 47.04917°NLon: 109.46639°WElev: 4167.0ft.

Clear

55°F

13°C

Humidity	66%
Wind Speed	ESE 10 MPH
Barometer	29.92 in (1013.21 mb)
Dewpoint	44°F (7°C)
Visibility	10.00 mi
Last update	19 Jun 12:00 AM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Lewistown MT

Overnight
Low: 49 °F
Mostly Clear
Juneteenth
High: 82 °F
Sunny then
Chance
Showers
Thursday Night
Low: 52 °F
Showers
Likely
Friday
High: 77 °F
Chance Rain
then Showers
Likely
Friday Night
Low: 47 °F
Showers
Saturday
High: 65 °F
Chance
Showers
Saturday Night
Low: 37 °F
Chance Rain
Sunday
High: 52 °F
Showers
Likely
Sunday Night
Low: 34 °F
Slight Chance
Rain then
Mostly Clear

Detailed Forecast

Overnight

Mostly clear, with a low around 49. Southeast wind 3 to 7 mph.

Juneteenth

A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 82. Light and variable wind becoming northeast 5 to 8 mph in the morning.

Thursday Night

Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and midnight, then a chance of showers after midnight. Mostly cloudy, with a low around 52. East wind 6 to 9 mph becoming south southwest in the evening. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

A chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 77. East wind 5 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

Friday Night

Showers and possibly a thunderstorm before midnight, then rain likely after midnight. Low around 47. North wind 6 to 11 mph becoming west northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%.

Saturday

A chance of rain before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 65. West wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

Saturday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 37. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

Sunday

Rain likely before noon, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 52. West wind 10 to 20 mph, with gusts as high as 31 mph.

Sunday Night

A slight chance of rain before midnight. Partly cloudy, with a low around 34.

Monday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 64.

Monday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 40.

Tuesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 69.

Tuesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 44.

Wednesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 74.