Washington County, MO 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 80. East wind around 3 mph.
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 1 of 1 mapped cities in Washington County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jun 3 to Jun 7, 2026
- Latest sync
- Jun 1, 2026 7:23 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Washington County
Saturday looks like the warmest upcoming period in Washington County at 85 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Thursday at about 1 to 6 mph S.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 1, 2026 7:23 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
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 82.
Mostly clear, with a low around 62.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 3
|
Sunny
|
80°F |
3 mph
E
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
57°F |
2 mph
SE
|
|
Thursday
Jun 4
|
Sunny
|
82°F |
1 to 6 mph
S
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
62°F |
5 mph
S
|
|
Friday
Jun 5
|
Mostly Sunny then Chance Showers And Thunderstorms
|
84°F |
6 mph
S
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
66°F |
5 mph
S
|
|
Saturday
Jun 6
|
Chance Showers And Thunderstorms
|
85°F |
6 mph
SW
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
67°F |
3 mph
S
|
|
Sunday
Jun 7
|
Chance Showers And Thunderstorms
|
85°F |
5 mph
S
|
|
Sunday Night
Jun 7
|
Chance Showers And Thunderstorms
|
68°F |
5 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Washington County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Washington County.
Largest mapped city population in this region: 2,548.
