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Severe Weather Summary - June 18, 2026

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Greene County - Lewis A Jackson Regional Airport (KGDK)

Lat: 39.69°NLon: 83.99°WElev: 949ft.

Fair

75°F

24°C

Humidity	44%
Wind Speed	Calm
Barometer	29.97 in
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	21 Jun 12:15 pm EDT

More Information:

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

Extended Forecast for

Spring Valley OH

This Afternoon
High: 80 °F
Partly Sunny
Tonight
Low: 64 °F
Showers
Monday
High: 77 °F
Showers
Likely
Monday Night
Low: 57 °F
Gradual
Clearing
Tuesday
High: 77 °F
Sunny
Tuesday Night
Low: 57 °F
Mostly Clear
Wednesday
High: 80 °F
Sunny
Wednesday Night
Low: 61 °F
Partly Cloudy
Thursday
High: 81 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

This Afternoon

Partly sunny, with a high near 80. South wind 3 to 5 mph.

Tonight

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11pm. Low around 64. East wind 10 to 13 mph becoming south after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Monday

Showers likely and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms after 9am. Mostly cloudy, with a high near 77. Southwest wind 11 to 13 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Cloudy during the early evening, then gradual clearing, with a low around 57. North wind 6 to 10 mph.

Tuesday

Sunny, with a high near 77. North wind 6 to 8 mph.

Tuesday Night

Mostly clear, with a low around 57.

Wednesday

Sunny, with a high near 80.

Wednesday Night

Partly cloudy, with a low around 61.

Thursday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.