Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. Read More >

Current conditions at

Lewistown Divide MT-200 MP 90.3 (MTLEW)

Lat: 47.07579°NLon: 109.26247°WElev: 4723.0ft.

66°F

19°C

Humidity	67%
Wind Speed	ESE 12 MPH
Barometer	NA
Dewpoint	55°F (13°C)
Visibility	NA
Last update	15 Jun 11:00 AM MDT

More Information:

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

Extended Forecast for

9 Miles ENE Lewistown MT

Today
High: 69 °F
Severe
Thunderstorms
Tonight
Low: 49 °F
Severe
Thunderstorms
then Mostly
Cloudy
Monday
High: 66 °F
Chance
Showers
Monday Night
Low: 49 °F
Chance
Showers
Tuesday
High: 64 °F
Chance
Showers
Tuesday Night
Low: 49 °F
Slight Chance
T-storms then
Mostly Clear
Wednesday
High: 69 °F
Sunny
Wednesday Night
Low: 51 °F
Partly Cloudy
Juneteenth
High: 72 °F
Sunny

Detailed Forecast

Today

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could be severe. Partly sunny, with a high near 69. East wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms, mainly before 11pm. Some of the storms could be severe and produce heavy rainfall. Low around 49. East wind around 7 mph becoming west in the evening. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

Monday

A 40 percent chance of showers, mainly after noon. Partly sunny, with a high near 66. West northwest wind around 6 mph becoming east in the afternoon.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. East northeast wind around 6 mph becoming south southwest after midnight. Chance of precipitation is 40%.

Tuesday

A 50 percent chance of showers. Partly sunny, with a high near 64. South southwest wind around 7 mph becoming northwest in the afternoon.

Tuesday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49. South southwest wind 6 to 9 mph.

Wednesday

Sunny, with a high near 69. West northwest wind 8 to 10 mph, with gusts as high as 20 mph.

Wednesday Night

Partly cloudy, with a low around 51. West northwest wind 6 to 8 mph becoming east southeast in the evening.

Juneteenth

Sunny, with a high near 72.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.