Ross County, OH Weather Forecast

County weather hub

66°
F

Sunny

Compare major city weather across Ross County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.

Tuesday, May 12, 2026
Wind: 0 to 5 mph SW
Tuesday

Sunny, with a high near 66.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Ross County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.

Current forecast coverage spans 4 of 4 mapped cities in Ross County.

Page Snapshot

Page focus
county weather
Forecast window
May 12 to May 15, 2026
Latest sync
May 8, 2026 11:51 PM EDT
Forecast office
ILN
Source
NOAA / NWS
Next High
66°F
Tuesday
Next Low
51°F
Tuesday Night
Rain Outlook
3
Periods mentioning precipitation
Windiest
14 to 17 mph
Wednesday

Daily Outlook

Today
May 12
Sunny
66 °F
/ 51°F
Wind 0 to 5 mph
Wed
May 13
Showers And Thunderstorms Likely
70 °F
/ 46°F
Wind 14 to 17 mph
Thu
May 14
Mostly Sunny
69 °F
/ 49°F
Wind 3 to 8 mph
Fri
May 15
Mostly Sunny
76 °F
Wind 0 to 6 mph

This Week in Ross County

Friday looks like the warmest upcoming period in Ross County at 76 degrees F.

Wednesday Night is the coolest period ahead with temperatures near 46 degrees F.

The strongest winds are forecast for Wednesday at about 14 to 17 mph W.

Precipitation is mentioned in 3 upcoming forecast periods.

Forecast Details

Last updated
May 8, 2026 11:51 PM EDT
Coverage
4 days
Time zone
America/New_York
Forecast office
ILN
Radar station
KILN

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Tuesday Night
May 12
51°F
Showers And Thunderstorms Likely
2 to 14 mph S

Showers and thunderstorms likely after 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.

Wednesday
May 13
70°F
Showers And Thunderstorms Likely
14 to 17 mph W

Showers and thunderstorms likely before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 70. Chance of precipitation is 70%.

Wednesday Night
May 13
46°F
Chance Showers And Thunderstorms then Partly Cloudy
3 to 15 mph NW

A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 46. Chance of precipitation is 40%.

Thursday
May 14
69°F
Mostly Sunny
3 to 8 mph NW

Mostly sunny, with a high near 69.

Thursday Night
May 14
49°F
Partly Cloudy
0 to 6 mph N

Partly cloudy, with a low around 49.

Friday
May 15
76°F
Mostly Sunny
0 to 6 mph SW

Mostly sunny, with a high near 76.

Detailed Forecast

Period Conditions Temp Wind
Tuesday
May 12
Sunny
66°F
0 to 5 mph
SW
Tuesday Night
May 12
Showers And Thunderstorms Likely
51°F
2 to 14 mph
S
Wednesday
May 13
Showers And Thunderstorms Likely
70°F
14 to 17 mph
W
Wednesday Night
May 13
Chance Showers And Thunderstorms then Partly Cloudy
46°F
3 to 15 mph
NW
Thursday
May 14
Mostly Sunny
69°F
3 to 8 mph
NW
Thursday Night
May 14
Partly Cloudy
49°F
0 to 6 mph
N
Friday
May 15
Mostly Sunny
76°F
0 to 6 mph
SW

Coverage

Tracked cities
4
Coverage
100%

Forecast coverage currently spans 4 of 4 mapped cities in Ross County.

Largest mapped city population in this region: 44,059.

Chillicothe ohio ross county courthouse 2006
Chillicothe ohio ross county courthouse 2006 image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.