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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Harry Clever Field Airport (KPHD)

Lat: 40.47°NLon: 81.42°WElev: 894ft.

Mostly Cloudy

74°F

23°C

Humidity 60%
Wind Speed Vrbl 5 mph
Barometer 30.17 in (1021.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 18 Sep 5:53 pm EDT
Extended Forecast for

Dennison OH

  • Tonight

    Tonight: Patchy fog between 2am and 5am. Otherwise, mostly clear, with a low around 57. North wind 5 to 7 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: A slight chance of showers between 11am and 1pm. Patchy fog between 9am and 10am. Otherwise, mostly sunny, with a high near 80. Calm wind. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 3am, then showers likely between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 8am, then showers between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 79. Southwest wind around 6 mph becoming west in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Northeast wind 6 to 8 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 70. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 50%.

    High: 69 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely. Cloudy, with a low around 56. Chance of precipitation is 70%.

    Low: 56 °F

    Showers
    Likely

Detailed Forecast

Tonight
Patchy fog between 2am and 5am. Otherwise, mostly clear, with a low around 57. North wind 5 to 7 mph becoming calm in the evening.
Saturday
A slight chance of showers between 11am and 1pm. Patchy fog between 9am and 10am. Otherwise, mostly sunny, with a high near 80. Calm wind. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms before 3am, then showers likely between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers likely and possibly a thunderstorm before 8am, then showers between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 79. Southwest wind around 6 mph becoming west in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Northeast wind 6 to 8 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 70. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 50%.
Tuesday Night
Showers likely. Cloudy, with a low around 56. Chance of precipitation is 70%.
Wednesday
Showers likely. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 53.
Friday
Partly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Dennison OH
 40.39°N 81.33°W (Elev. 899 ft)
Last Update:
2:22 pm EDT Sep 18, 2026
Forecast Valid:
6pm EDT Sep 18, 2026-6pm EDT Sep 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