Local weather forecast

Weather in Dennison, OH

Updated 2026-08-11 12:00 local time · ZIP codes 44621

Mist
Now66°F

Mist

High / Low84° / 66°
Rain chance83%
Wind8 mph
Weather alerts

Active alerts

3
Flood Watch issued August 11 at 2:32AM EDT until August 12 at 8:00AM EDT by NWS Pittsburgh PA

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central Ohio, including the following areas, Carroll and Jefferson OH, southwest Pennsylvania, including the following areas, Fayette, Higher Elevations of Fayette and Washington, and West Virginia, including the following areas, Brooke and Hancock. * WHEN...Through Wednesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Additional rainfall through Tuesday night is expected to average from 1.0 to 1.5 inches across the watch area. However, there is the potential for isolated locations to receive an additional 2 to 3 inches. With the soil already saturated, such rain totals could create flash flooding conditions. - http://www.weather.gov/safety/flood

Safety instructions

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Flood Watch issued August 11 at 2:32AM EDT until August 12 at 8:00AM EDT by NWS Pittsburgh PA

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central Ohio, including the following areas, Belmont, Coshocton, Guernsey, Harrison, Monroe, Muskingum, Noble and Tuscarawas, southwest Pennsylvania, including the following area, Greene, and West Virginia, including the following areas, Eastern Preston, Eastern Tucker, Marion, Marshall, Monongalia, Ohio, Preston, Ridges of Eastern Monongalia and Northwestern Preston, Western Tucker and Wetzel. * WHEN...Through Wednesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Additional rainfall through Tuesday night is expected to average from 1.0 to 1.5 inches across the watch area. However, there is the potential for isolated locations to receive an additional 2 to 3 inches. With the soil already saturated, such rain totals could create flash flooding conditions. - http://www.weather.gov/safety/flood

Safety instructions

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Flood Watch issued August 11 at 7:06AM EDT until August 12 at 8:00AM EDT by NWS Pittsburgh PA

Repetitive rounds of precipitation through Tuesday night will raise flash flood potential. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central Ohio, including the following areas, Belmont, Carroll, Coshocton, Guernsey, Harrison, Jefferson OH, Monroe, Muskingum, Noble and Tuscarawas, southwest Pennsylvania, including the following areas, Fayette, Greene, Higher Elevations of Fayette and Washington, and West Virginia, including the following areas, Brooke, Eastern Preston, Eastern Tucker, Hancock, Marion, Marshall, Monongalia, Ohio, Preston, Ridges of Eastern Monongalia and Northwestern Preston, Western Tucker and Wetzel. * WHEN...Through Wednesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Additional rainfall through Tuesday night is expected to average from 1.0 to 1.5 inches across the watch area. However, there is the potential for isolated locations to receive an additional 2 to 3 inches. With the soil already saturated, such rain totals could create flash flooding conditions. - http://www.weather.gov/safety/flood

Safety instructions

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Hourly

Next hours

NowMist66°39% rain
1 PMSunny77°8% rain
2 PMSunny84°7% rain
3 PMSunny80°9% rain
4 PMSunny83°7% rain
5 PMSunny82°7% rain
6 PMModerate rain at times78°58% rain
7 PMModerate rain at times75°78% rain
8 PMHeavy rain70°92% rain
9 PMPatchy rain nearby70°74% rain
10 PMPatchy rain nearby69°37% rain
11 PMClear68°19% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
84° 66°Sunny
Rain 83%Gust 23 mph
Tomorrow2026-08-12
Fog
81° 61°Fog
Rain 87%Gust 12 mph
Thursday2026-08-13
Sunny
84° 64°Sunny
Rain 37%Gust 8 mph
Conditions

Weather details

Feels like66°F
Humidity94%
Pressure30.06 inHg
Visibility6 mi
Wind8 mph SW
Wind gusts14 mph
Precipitation0.01 in
UV index1
Daylight

Sunrise, sunset and moon

Sunrise06:32 AM
Sunset08:28 PM
Moonrise04:31 AM
Moon phaseNew Moon
Practical guide

Weather insights for today

Take an umbrella

Rain chance reaches about 92% over the next 12 hours.

Light layers should work

It feels like 66°F with winds near 8 mph.

Best window: 1 PM

77°F, 8% rain chance and 9 mph wind.

Use extra caution while driving

Visibility is around 6 mi; gusts may reach 40 mph.

Running conditions are less comfortable

Current temperature is 66°F, wind 8 mph, rain chance up to 92%.

Low UV protection needs

UV index is 1.

Dennison weather today

Mist and 66°F in Dennison, OH. Today's high is 84°F with a 83% rain chance. Winds are around 8 mph with gusts near 14 mph. Relative humidity is 94%, pressure is 30.06 inHg, and visibility is about 6 miles.

Tonight and tomorrow in Dennison

Sunrise is at 06:32 AM and sunset is at 08:28 PM. Tomorrow's forecast calls for Fog with a high near 81°F and a low near 61°F. The maximum rain chance is 87%.

Nearby

Weather near Dennison

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