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.

Partly Cloudy

28°C

82°F

Humidity 79%
Wind Speed SW 11 km/h
Barometer 30.04 in
Dewpoint 24°C (75°F)
Visibility 16 km
Heat Index32°C (89°F)
Last update 13 Jul 12:15 pm EDT
Extended Forecast for

Ottawa OH

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 31. West wind 10 to 15 km/h.

    High: 31 °C

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 7pm and 8pm. Mostly cloudy, with a low around 18. West wind 5 to 10 km/h. Chance of precipitation is 10%.

    Low: 18 °C

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 31. Northwest wind 5 to 10 km/h becoming southwest in the morning.

    High: 31 °C

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 20. Calm wind.

    Low: 20 °C

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 32. Southeast wind 5 to 10 km/h. Chance of precipitation is 30%.

    High: 32 °C

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.

    Low: 22 °C

    Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 32. Chance of precipitation is 70%.

    High: 32 °C

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.

    Low: 22 °C

    Showers
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 31. Chance of precipitation is 60%.

    High: 31 °C

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 31. West wind 10 to 15 km/h.
Tonight
A slight chance of showers and thunderstorms between 7pm and 8pm. Mostly cloudy, with a low around 18. West wind 5 to 10 km/h. Chance of precipitation is 10%.
Monday
Mostly sunny, with a high near 31. Northwest wind 5 to 10 km/h becoming southwest in the morning.
Monday Night
Mostly clear, with a low around 20. Calm wind.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 32. Southeast wind 5 to 10 km/h. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 32. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 31. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 28.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 18.
Saturday
A slight chance of showers. Mostly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ottawa OH
 41.02°N 84.04°W (Elev. 699 m)
Last Update:
12:33 pm EDT Jul 13, 2025
Forecast Valid:
12pm EDT Jul 13, 2025-6pm EDT Jul 19, 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