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

Owatonna Degner Regional Airport (KOWA)

Lat: 44.12°NLon: 93.26°WElev: 1129ft.

Partly Cloudy

70°F

21°C

Humidity 96%
Wind Speed S 9 mph
Barometer 30.02 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 16 Aug 1:35 am CDT
Extended Forecast for

Owatonna MN

  • Overnight

    Overnight: Mostly cloudy, with a low around 70. South southeast wind 5 to 10 mph.

    Low: 70 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 10am. Mostly cloudy, with a high near 86. Heat index values as high as 95. South southeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Showers
    Likely then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East wind around 5 mph. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Southeast wind 5 to 10 mph.

    High: 84 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 7pm, then showers and thunderstorms likely between 7pm and 10pm, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 69. Southeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    T-storms
    Likely then
    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. South wind 5 to 10 mph becoming west in the afternoon.

    High: 83 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 65. North northeast wind around 5 mph.

    Low: 65 °F

    Chance
    T-storms

  • Tuesday

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

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62. North northeast wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 70. South southeast wind 5 to 10 mph.
Saturday
Showers and thunderstorms likely, mainly before 10am. Mostly cloudy, with a high near 86. Heat index values as high as 95. South southeast wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East wind around 5 mph. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Southeast wind 5 to 10 mph.
Sunday Night
Showers likely and possibly a thunderstorm before 7pm, then showers and thunderstorms likely between 7pm and 10pm, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 69. Southeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. South wind 5 to 10 mph becoming west in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 65. North northeast wind around 5 mph.
Tuesday
Partly sunny, with a high near 78. North northeast wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 62. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 79. Calm wind becoming northeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 60. East northeast wind around 5 mph becoming calm.
Thursday
Mostly sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 62. South wind around 5 mph.
Friday
Mostly sunny, with a high near 80. Southwest wind around 5 mph becoming northwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Owatonna MN
 44.1°N 93.23°W (Elev. 1158 ft)
Last Update:
10:48 pm CDT Aug 15, 2025
Forecast Valid:
1am CDT Aug 16, 2025-6pm CDT Aug 22, 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