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

Glasgow, Glasgow International Airport (KGGW)

Lat: 48.21389°NLon: 106.62139°WElev: 2293.0ft.

Mostly Cloudy

64°F

18°C

Humidity 60%
Wind Speed W 18 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 08 Aug 02:53 PM MDT
Extended Forecast for

6 Miles NW Glasgow Intl Arpt MT

Lake Wind Advisory August 8, 03:01pm until August 9, 09:00pm
Click here for hazard details and duration
Lake Wind Advisory
  •  
    Lake Wind Advisory August 8, 03:01pm until August 9, 09:00pm

    NOW until 9:00pm Sat

    Lake Wind Advisory

  • This Afternoon

    High: 71 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 1am, then showers likely and possibly a thunderstorm after 2am.  Mostly cloudy, with a low around 55. Breezy, with a west wind 18 to 22 mph, with gusts as high as 33 mph.  Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely and
    Breezy

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms, mainly between 10am and 3pm.  Cloudy, then gradually becoming mostly sunny, with a high near 72. Breezy, with a west wind 22 to 25 mph, with gusts as high as 37 mph.  Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53. West wind 8 to 18 mph, with gusts as high as 29 mph.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 82. West wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. West northwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83. West northwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. Northwest wind 5 to 10 mph becoming east after midnight.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 71. West wind around 21 mph, with gusts as high as 29 mph.
Tonight
Showers and thunderstorms likely, mainly before 1am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 55. Breezy, with a west wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 70%.
Saturday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms, mainly between 10am and 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 72. Breezy, with a west wind 22 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 53. West wind 8 to 18 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 82. West wind 7 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 56. West northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 83. West northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 55. Northwest wind 5 to 10 mph becoming east after midnight.
Tuesday
Sunny, with a high near 85. East southeast wind 5 to 9 mph becoming west in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58. North northeast wind around 10 mph becoming east after midnight.
Wednesday
Sunny, with a high near 87. East wind 7 to 9 mph becoming south southwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Sunny, with a high near 87.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Friday
Partly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NW Glasgow Intl Arpt MT
 48.25°N 106.72°W (Elev. 2113 ft)
1:48 pm MDT Aug 8, 2025
3pm MDT Aug 8, 2025-6pm MDT Aug 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database