Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Severe thunderstorms possible over the upper Midwest and Great Lakes, Heavy Rain and Flooding Possible over the Southwest U.S.

Severe thunderstorms will be possible over portions of the upper Midwest and Great Lakes Tuesday, Wednesday, and Thursday. Damaging winds, large hail, and heavy rainfall possible. Over the Desert Southwest and portions of the Rockies, Monsoonal moisture will lead to locally heavy rainfall and the threat for flash flooding into midweek. Read More >

Current conditions at

Sieben I-15 MP 216 (MTSBN)

Lat: 46.88748267° N Lon: 112.1111196° W Elev: 4199 ft.

NA

59°F

15°C

Humidity 42%
Wind Speed NNE 20 G 30 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 25 Jul 4:28 am MDT
Detailed forecast for

Central and Southern Lewis and Clark

Today
Sunny...then becoming partly cloudy late this morning... Then becoming sunny. Highs 75 to 85. Northeast winds 5 to 10 mph.
Tonight
Partly cloudy. Lows in the mid 50s. North winds up to 10 mph.
Wednesday
Sunny in the morning...then partly cloudy with a 20 percent chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 80 to 90. Northeast winds up to 10 mph...becoming southeast in the afternoon.
Wednesday Night
Mostly cloudy with a chance of showers and thunderstorms in the evening...then partly cloudy with a slight chance of showers and thunderstorms after midnight. Some thunderstorms may produce gusty winds in the evening. Lows 55 to 60. South winds up to 10 mph. Chance of precipitation 50 percent.
Thursday
Partly cloudy. A 20 percent chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 80 to 90. Southwest winds up to 10 mph.
Thursday Night
Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows 55 to 60.
Friday And Friday Night
Mostly clear. Highs 80 to 90. Lows around 55.
Saturday And Saturday Night
Mostly clear. A 20 percent chance of showers and thunderstorms. Highs 85 to 95. Lows 55 to 60.
Sunday Through Monday
Mostly clear. Highs 85 to 95. Lows 55 to 60.



Click Map For Forecast
341 AM MDT Tue Jul 25 2017
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database