Washington County, WI 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 95. Heat index values as high as 97. West wind 5 to 10 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 2 of 2 mapped cities in Washington County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 14 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 1:04 PM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Washington County
Today looks like the warmest upcoming period in Washington County at 95 degrees F.
Monday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Today at about 5 to 10 mph W.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 1:04 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- MKX
- Radar station
- KMKX
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 72. Heat index values as high as 97. West wind around 5 mph.
Sunny. High near 95, with temperatures falling to around 90 in the afternoon. Heat index values as high as 99. North wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 69. East wind 0 to 5 mph. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 92. East wind 0 to 5 mph.
Mostly clear, with a low around 67. East wind 0 to 5 mph.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Southeast wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. South wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 14
|
Sunny
|
95°F |
5 to 10 mph
W
|
|
Tonight
Jul 14
|
Mostly Clear
|
72°F |
5 mph
W
|
|
Wednesday
Jul 15
|
Sunny
|
95°F |
5 mph
N
|
|
Wednesday Night
Jul 15
|
Partly Cloudy
|
69°F |
0 to 5 mph
E
|
|
Thursday
Jul 16
|
Sunny
|
92°F |
0 to 5 mph
E
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
67°F |
0 to 5 mph
E
|
|
Friday
Jul 17
|
Mostly Sunny then Chance Showers And Thunderstorms
|
89°F |
0 to 5 mph
SE
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
68°F |
0 to 5 mph
S
|
|
Saturday
Jul 18
|
Slight Chance Showers And Thunderstorms
|
89°F |
5 to 10 mph
W
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
66°F |
5 to 10 mph
N
|
|
Sunday
Jul 19
|
Slight Chance Showers And Thunderstorms
|
85°F |
5 to 10 mph
NE
|
|
Sunday Night
Jul 19
|
Slight Chance Showers And Thunderstorms
|
63°F |
5 to 10 mph
SE
|
|
Monday
Jul 20
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
84°F |
5 to 10 mph
W
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
62°F |
5 to 10 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Washington County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Washington County.
Largest mapped city population in this region: 4,715.
