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.

Overcast

67°F

19°C

Humidity 91%
Wind Speed S 6 mph
Barometer 30.08 in (1018.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 19 May 6:53 am EDT
Extended Forecast for

Harpster OH

  • Today

    Today: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Slight Chance
    Showers then
    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms, mainly before midnight, then showers likely and possibly a thunderstorm after midnight. Low around 60. Southwest wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 64. North wind 11 to 13 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45. Northeast wind around 11 mph.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Northeast wind around 14 mph.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: Showers. High near 69. Chance of precipitation is 80%.

    High: 69 °F

    Showers

  • Friday Night

    Friday Night: Showers before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 60. Chance of precipitation is 90%.

    Low: 60 °F

    Showers

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

Today
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms, mainly before midnight, then showers likely and possibly a thunderstorm after midnight. Low around 60. Southwest wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 64. North wind 11 to 13 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 45. Northeast wind around 11 mph.
Thursday
Mostly sunny, with a high near 66. Northeast wind around 14 mph.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
Showers. High near 69. Chance of precipitation is 80%.
Friday Night
Showers before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 60. Chance of precipitation is 90%.
Saturday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Memorial Day
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Harpster OH
 40.72°N 83.26°W (Elev. 899 ft)
Last Update:
3:47 am EDT May 19, 2026
Forecast Valid:
7am EDT May 19, 2026-6pm EDT May 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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