Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Lewistown Divide MT-200 MP 90.3 (MTLEW)

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

unknown precip

76°F

24°C

Humidity 41%
Wind Speed ESE 8 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Heat Index78°F (26°C)
Last update 16 Aug 07:15 PM MDT
Extended Forecast for

8 Miles NW Forestgrove MT

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm.  Mostly cloudy, with a low around 55. South wind around 6 mph becoming west northwest in the evening.

    Low: 55 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 5pm.  Widespread haze after 1pm. Mostly sunny, with a high near 80. West wind around 6 mph becoming east in the afternoon.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms before midnight.  Widespread haze between 10pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 55. Northeast wind around 6 mph becoming southwest after midnight.

    Low: 55 °F

    Chance
    T-storms then
    Haze

  • Monday

    Monday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm.  Sunny, with a high near 84. Calm wind becoming west southwest around 6 mph in the afternoon.  Chance of precipitation is 20%.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. Northeast wind around 6 mph becoming south after midnight.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. South southwest wind around 6 mph becoming east northeast in the afternoon.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. East southeast wind around 7 mph becoming south after midnight.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87. South southwest wind 7 to 9 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers.  Partly cloudy, with a low around 58.

    Low: 58 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 55. South wind around 6 mph becoming west northwest in the evening.
Sunday
A 30 percent chance of showers, mainly after 5pm. Widespread haze after 1pm. Mostly sunny, with a high near 80. West wind around 6 mph becoming east in the afternoon.
Sunday Night
A 40 percent chance of showers and thunderstorms before midnight. Widespread haze between 10pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 55. Northeast wind around 6 mph becoming southwest after midnight.
Monday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 84. Calm wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 59. Northeast wind around 6 mph becoming south after midnight.
Tuesday
Sunny, with a high near 90. South southwest wind around 6 mph becoming east northeast in the afternoon.
Tuesday Night
Mostly clear, with a low around 60. East southeast wind around 7 mph becoming south after midnight.
Wednesday
Sunny, with a high near 87. South southwest wind 7 to 9 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 58.
Thursday
A slight chance of showers after noon. Sunny, with a high near 77.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 50.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NW Forestgrove MT
 47.06°N 109.21°W (Elev. 4364 ft)
4:44 pm MDT Aug 16, 2025
7pm MDT Aug 16, 2025-6pm MDT Aug 23, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database