National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Hazardous Weather Conditions

Current conditions at

Concordia, Blosser Municipal Airport (KCNK)

Lat: 39.55°NLon: 97.65°WElev: 1486ft.

Partly Cloudy

73°F

23°C

Humidity 76%
Wind Speed Calm
Barometer 29.91 in (1011.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 9 Aug 8:55 am CDT
Extended Forecast for

Mankato KS

  • Today

    Today: Mostly sunny, with a high near 89. East northeast wind 10 to 15 mph.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 10pm. Partly cloudy, with a low around 67. North northeast wind around 10 mph.

    Low: 67 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. North northeast wind around 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 63. North northeast wind 5 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms, mainly between 10am and 1pm. Partly sunny, with a high near 80. North wind around 5 mph becoming east northeast in the afternoon.

    High: 80 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 89. East northeast wind 10 to 15 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 10pm. Partly cloudy, with a low around 67. North northeast wind around 10 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. North northeast wind around 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 63. North northeast wind 5 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.
Monday
A 20 percent chance of showers and thunderstorms, mainly between 10am and 1pm. Partly sunny, with a high near 80. North wind around 5 mph becoming east northeast in the afternoon.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mankato KS
 39.78°N 98.21°W (Elev. 1745 ft)
Last Update:
7:59 am CDT Aug 9, 2025
Forecast Valid:
9am CDT Aug 9, 2025-6pm CDT Aug 15, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation