Washington County, OH Weather Forecast
County weather hub
Sunny
Compare major city weather across Washington County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 76.
County Weather Overview
This county weather page brings together forecast coverage for Washington 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 Washington County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 24 to Aug 26, 2026
- Latest sync
- Aug 20, 2026 11:39 AM EDT
- Forecast office
- RLX
- Source
- NOAA / NWS
Daily Outlook
This Week in Washington County
Wednesday looks like the warmest upcoming period in Washington County at 80 degrees F.
Monday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Monday at about 2 to 7 mph W.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 20, 2026 11:39 AM EDT
- Coverage
- 3 days
- Time zone
- America/New_York
- Forecast office
- RLX
- Radar station
- KRLX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 57.
Sunny, with a high near 78.
Partly cloudy, with a low around 60.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80.
A chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Sunny
|
76°F |
2 to 7 mph
W
|
|
Monday Night
Aug 24
|
Mostly Clear
|
57°F |
5 mph
N
|
|
Tuesday
Aug 25
|
Sunny
|
78°F |
3 mph
NE
|
|
Tuesday Night
Aug 25
|
Partly Cloudy
|
60°F |
2 mph
NE
|
|
Wednesday
Aug 26
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
80°F |
5 mph
S
|
|
Wednesday Night
Aug 26
|
Chance Showers And Thunderstorms
|
63°F |
3 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Washington County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Washington County.
Largest mapped city population in this region: 4,422.