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

Ottawa Putnam County Airport (KOWX)

Lat: 41.04°NLon: 83.98°WElev: 763ft.

Overcast

66°F

19°C

Humidity 94%
Wind Speed SW 16 mph
Barometer 29.94 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 16 May 11:35 am EDT
Extended Forecast for

Grelton OH

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly before noon. Mostly cloudy, with a high near 79. West wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 79 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. Southwest wind 5 to 10 mph.

    Low: 59 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 85. South wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 89 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 90. Breezy. Chance of precipitation is 70%.

    High: 90 °F

    Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 62. Chance of precipitation is 90%.

    Low: 62 °F

    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 8am, then a slight chance of showers between 8am and 2pm. Partly sunny, with a high near 71. Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely then
    Slight Chance
    Showers

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly before noon. Mostly cloudy, with a high near 79. West wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, with a low around 59. Southwest wind 5 to 10 mph.
Sunday
A slight chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 85. South wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 65. South wind around 10 mph, with gusts as high as 20 mph.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 68.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 90. Breezy. Chance of precipitation is 70%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 62. Chance of precipitation is 90%.
Wednesday
Showers likely and possibly a thunderstorm before 8am, then a slight chance of showers between 8am and 2pm. Partly sunny, with a high near 71. Chance of precipitation is 60%.
Wednesday Night
Mostly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Mostly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grelton OH
 41.3°N 84.07°W (Elev. 663 ft)
Last Update:
11:16 am EDT May 16, 2026
Forecast Valid:
11am EDT May 16, 2026-6pm EDT May 22, 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