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	68%
Wind Speed	E 12 MPH
Barometer	NA
Dewpoint	55°F (13°C)
Visibility	NA
Last update	15 Jun 11:15 AM MDT

More Information:

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

Extended Forecast for

7 Miles WNW Grass Range MT

Today
High: 77 °F
Severe
Thunderstorms
Tonight
Low: 51 °F
Severe
Thunderstorms
then Mostly
Cloudy
Monday
High: 76 °F
Mostly Sunny
then Chance
Showers
Monday Night
Low: 52 °F
Chance
Showers
Tuesday
High: 73 °F
Chance
Showers
Tuesday Night
Low: 51 °F
Slight Chance
T-storms then
Mostly Clear
Wednesday
High: 79 °F
Sunny
Wednesday Night
Low: 54 °F
Partly Cloudy
Juneteenth
High: 83 °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 77. East wind 5 to 7 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 9pm. Some of the storms could be severe and produce heavy rainfall. Low around 51. East wind 5 to 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 after noon. Partly sunny, with a high near 76. West southwest wind around 6 mph becoming light and variable.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Northeast wind around 6 mph becoming southwest after midnight. Chance of precipitation is 40%.

Tuesday

A 50 percent chance of showers. Mostly cloudy, with a high near 73. West southwest wind 5 to 7 mph becoming north in the afternoon.

Tuesday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 51. Southwest wind 6 to 8 mph.

Wednesday

Sunny, with a high near 79. West northwest wind around 10 mph.

Wednesday Night

Partly cloudy, with a low around 54. West wind around 7 mph becoming east in the evening.

Juneteenth

Sunny, with a high near 83.

Thursday Night

A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 54.