Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Current conditions at

BIG SHEEP MOUNTAIN (LCFM8)

Lat: 47.02819°NLon: 105.80472°WElev: 3172.0ft.

NA

55°F

13°C

Humidity 90%
Wind Speed W 16 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 09 Aug 05:08 AM MDT
Extended Forecast for

14 Miles W Brockway MT

Lake Wind Advisory August 9, 05:59am until August 9, 09:00pm
Click here for hazard details and duration
Lake Wind Advisory
  •  
    Lake Wind Advisory August 9, 05:59am until August 9, 09:00pm

    NOW until 9:00pm Sat

    Lake Wind Advisory

  • Overnight

    Low: 57 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 4pm.  Cloudy, then gradually becoming mostly sunny, with a high near 71. Breezy, with a west wind 18 to 25 mph, with gusts as high as 36 mph.  Chance of precipitation is 60%.

    High: 71 °F

    Breezy.
    Showers
    Likely then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Areas of smoke after 11pm. Partly cloudy, with a low around 53. Northwest wind 15 to 20 mph becoming west southwest 5 to 10 mph after midnight. Winds could gust as high as 29 mph.

    Low: 53 °F

    Areas Smoke

  • Sunday

    Sunday: Areas of smoke before 8am. Sunny, with a high near 82. West southwest wind 5 to 9 mph.

    High: 82 °F

    Areas Smoke
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59. West northwest wind 5 to 8 mph becoming light and variable.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 84. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. North northwest wind 5 to 10 mph becoming light and variable  after midnight. Winds could gust as high as 18 mph.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Calm wind becoming south 5 to 8 mph in the morning.

    High: 90 °F

    Sunny

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 57. West wind around 20 mph, with gusts as high as 30 mph.
Saturday
Showers and thunderstorms likely, mainly before 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 71. Breezy, with a west wind 18 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 60%.
Saturday Night
Areas of smoke after 11pm. Partly cloudy, with a low around 53. Northwest wind 15 to 20 mph becoming west southwest 5 to 10 mph after midnight. Winds could gust as high as 29 mph.
Sunday
Areas of smoke before 8am. Sunny, with a high near 82. West southwest wind 5 to 9 mph.
Sunday Night
Partly cloudy, with a low around 59. West northwest wind 5 to 8 mph becoming light and variable.
Monday
Sunny, with a high near 84. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 58. North northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 90. Calm wind becoming south 5 to 8 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 62. Southeast wind around 9 mph.
Wednesday
Sunny, with a high near 90. Southeast wind around 8 mph becoming northwest in the afternoon.
Wednesday Night
A 20 percent chance of showers. Mostly clear, with a low around 61. North wind 8 to 10 mph becoming east after midnight.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
A chance of showers. Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
14 Miles W Brockway MT
 47.32°N 106.07°W (Elev. 2605 ft)
2:11 am MDT Aug 9, 2025
5am MDT Aug 9, 2025-6pm MDT Aug 15, 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