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

Hazardous Weather Conditions

Current conditions at

Marion, Marion Municipal Airport (KMNN)

Lat: 40.62°NLon: 83.07°WElev: 994ft.

Fair

77°F

25°C

Humidity 90%
Wind Speed S 8 mph
Barometer 30.07 in (1017.6 mb)
Dewpoint 74°F (23°C)
Visibility 7.00 mi
Heat Index78°F (26°C)
Last update 30 Jun 7:53 am EDT
Extended Forecast for

Upper Sandusky OH

Extreme Heat Warning June 30, 12:00pm until July 2, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: Sunny, with a high near 94. Heat index values as high as 104. Southwest wind 8 to 14 mph.

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 75. Southwest wind 7 to 11 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Heat index values as high as 104. Southwest wind 8 to 11 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 75. Southwest wind 6 to 9 mph.

    Low: 75 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 96. Southwest wind 6 to 11 mph.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 95. Chance of precipitation is 60%.

    High: 95 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.

    Low: 73 °F

    Chance
    T-storms

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 50%.

    High: 92 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 94. Heat index values as high as 104. Southwest wind 8 to 14 mph.
Tonight
Mostly clear, with a low around 75. Southwest wind 7 to 11 mph.
Wednesday
Sunny, with a high near 96. Heat index values as high as 104. Southwest wind 8 to 11 mph.
Wednesday Night
Clear, with a low around 75. Southwest wind 6 to 9 mph.
Thursday
Sunny, with a high near 96. Southwest wind 6 to 11 mph.
Thursday Night
Mostly clear, with a low around 75.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 95. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Independence Day
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Upper Sandusky OH
 40.84°N 83.28°W (Elev. 801 ft)
Last Update:
4:32 am EDT Jun 30, 2026
Forecast Valid:
8am EDT Jun 30, 2026-6pm EDT Jul 6, 2026
 
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