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

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 >

Hazardous Weather Conditions

Current conditions at

Mankato, Mankato Regional Airport (KMKT)

Lat: 44.22°NLon: 93.92°WElev: 1020ft.

Overcast

75°F

24°C

Humidity 90%
Wind Speed E 10 mph
Barometer 29.97 in (1014.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 17 Aug 1:56 am CDT
Extended Forecast for

3 Miles WNW Janesville MN

  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 70. East wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 86. East southeast wind 10 to 15 mph. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 71. East southeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 85. South wind around 10 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63. North wind around 5 mph.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 78. North wind around 5 mph.

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. North northeast wind around 5 mph becoming calm after midnight.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 59. East northeast wind around 5 mph becoming south southeast after midnight.

    Low: 59 °F

    Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 70. East wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 86. East southeast wind 10 to 15 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 71. East southeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 85. South wind around 10 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63. North wind around 5 mph.
Tuesday
Partly sunny, with a high near 78. North wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 60. North northeast wind around 5 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 80. Calm wind becoming northeast around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 59. East northeast wind around 5 mph becoming south southeast after midnight.
Thursday
Sunny, with a high near 82. South wind around 5 mph.
Thursday Night
Mostly clear, with a low around 61. South wind around 5 mph.
Friday
Mostly sunny, with a high near 81. South southwest wind 5 to 10 mph becoming west in the afternoon.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 58. Northwest wind around 5 mph.
Saturday
Sunny, with a high near 76. Northwest wind 5 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Janesville MN
 44.14°N 93.77°W (Elev. 1070 ft)
Last Update:
2:07 am CDT Aug 17, 2025
Forecast Valid:
2am CDT Aug 17, 2025-6pm CDT Aug 23, 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