Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Current conditions at

Lewistown Divide MT-200 MP 90.3 (MTLEW)

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

NA

57°F

14°C

Humidity 75%
Wind Speed E 12 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 15 Aug 12:45 AM MDT
Extended Forecast for

9 Miles ENE Lewistown MT

  • Overnight

    Overnight: Mostly clear, with a low around 52. East southeast wind 7 to 9 mph.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 74. East southeast wind around 7 mph becoming west northwest in the afternoon.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Widespread haze after 5am. Mostly clear, with a low around 59. Northeast wind around 7 mph becoming south after midnight.

    Low: 59 °F

    Mostly Clear
    then Haze

  • Saturday

    Saturday: Widespread haze before 8am. Sunny, with a high near 80. West southwest wind around 6 mph becoming north northwest in the afternoon.

    High: 80 °F

    Haze then
    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 56. Northeast wind around 7 mph becoming southwest after midnight.

    Low: 56 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 75. West southwest wind around 6 mph becoming north northeast in the afternoon.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 56. Southeast wind around 7 mph becoming south southwest after midnight.

    Low: 56 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 77. South southwest wind around 6 mph becoming east southeast in the afternoon.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 52. East southeast wind 7 to 9 mph.
Friday
Sunny, with a high near 74. East southeast wind around 7 mph becoming west northwest in the afternoon.
Friday Night
Widespread haze after 5am. Mostly clear, with a low around 59. Northeast wind around 7 mph becoming south after midnight.
Saturday
Widespread haze before 8am. Sunny, with a high near 80. West southwest wind around 6 mph becoming north northwest in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56. Northeast wind around 7 mph becoming southwest after midnight.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75. West southwest wind around 6 mph becoming north northeast in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56. Southeast wind around 7 mph becoming south southwest after midnight.
Monday
Sunny, with a high near 77. South southwest wind around 6 mph becoming east southeast in the afternoon.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Sunny, with a high near 73.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Lewistown MT
 47.1°N 109.25°W (Elev. 5325 ft)
7:03 pm MDT Aug 14, 2025
1am MDT Aug 15, 2025-6pm MDT Aug 21, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database