National Weather Service

News Headlines

Local Weather Summary - August 2025

Current conditions at

Greene County - Lewis A Jackson Regional Airport (KGDK)

Lat: 39.69°NLon: 83.99°WElev: 949ft.

Fair

61°F

16°C

Humidity	72%
Wind Speed	SW 5 mph
Barometer	29.80 in
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	4 Sep 8:35 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Spring Valley OH

Tonight
Low: 51 °F
Mostly Clear
Friday
High: 82 °F
Sunny
Friday Night
Low: 54 °F
Chance
Showers
Saturday
High: 70 °F
Slight Chance
Showers
Saturday Night
Low: 47 °F
Mostly Clear
Sunday
High: 70 °F
Sunny
Sunday Night
Low: 43 °F
Mostly Clear
Monday
High: 71 °F
Sunny
Monday Night
Low: 46 °F
Clear

Detailed Forecast

Tonight

Mostly clear, with a low around 51. West wind around 5 mph becoming calm in the evening.

Friday

Sunny, with a high near 82. South wind 9 to 17 mph becoming west in the afternoon.

Friday Night

A chance of showers and thunderstorms. Increasing clouds, with a low around 54. West wind 5 to 9 mph becoming light northwest after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A slight chance of showers before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 70. Calm wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 20%.

Saturday Night

Mostly clear, with a low around 47. West wind around 6 mph becoming calm in the evening.

Sunday

Sunny, with a high near 70.

Sunday Night

Mostly clear, with a low around 43.

Monday

Sunny, with a high near 71.

Monday Night

Clear, with a low around 46.

Tuesday

Sunny, with a high near 76.