Columbia County, WI Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Columbia County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms between 1pm and 3pm, then showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 78. South wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Columbia County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 3 of 3 mapped cities in Columbia County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 17 to Apr 23, 2026
- Latest sync
- Apr 17, 2026 2:55 PM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Columbia County
This Afternoon looks like the warmest upcoming period in Columbia County at 78 degrees F.
Sunday Night is the coolest period ahead with temperatures near 28 degrees F.
The strongest winds are forecast for This Afternoon at about 15 to 20 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 17, 2026 2:55 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
Showers and thunderstorms before 3am. Some of the storms could be severe. Cloudy, with a low around 36. Southwest wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Mostly sunny, with a high near 47. Northwest wind 15 to 20 mph, with gusts as high as 30 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 30. West wind 5 to 15 mph, with gusts as high as 30 mph.
A slight chance of snow showers between 7am and 10am, then a slight chance of rain and snow showers. Mostly sunny, with a high near 47. West wind 5 to 15 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 7pm. Mostly clear, with a low around 28. North wind 0 to 10 mph. Chance of precipitation is 20%.
Sunny, with a high near 56. South wind 0 to 10 mph.
Mostly cloudy, with a low around 44. South wind around 10 mph.
Mostly sunny, with a high near 72.
Mostly clear, with a low around 45.
Sunny, with a high near 71.
Mostly clear, with a low around 49.
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 76. Chance of precipitation is 20%.
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Apr 17
|
Chance Showers And Thunderstorms
|
78°F |
15 to 20 mph
S
|
|
Tonight
Apr 17
|
Showers And Thunderstorms
|
36°F |
10 to 15 mph
SW
|
|
Saturday
Apr 18
|
Mostly Sunny
|
47°F |
15 to 20 mph
NW
|
|
Saturday Night
Apr 18
|
Mostly Clear
|
30°F |
5 to 15 mph
W
|
|
Sunday
Apr 19
|
Slight Chance Snow Showers
|
47°F |
5 to 15 mph
W
|
|
Sunday Night
Apr 19
|
Slight Chance Rain Showers then Mostly Clear
|
28°F |
0 to 10 mph
N
|
|
Monday
Apr 20
|
Sunny
|
56°F |
0 to 10 mph
S
|
|
Monday Night
Apr 20
|
Mostly Cloudy
|
44°F |
10 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
72°F |
10 mph
SW
|
|
Tuesday Night
Apr 21
|
Mostly Clear
|
45°F |
5 to 10 mph
S
|
|
Wednesday
Apr 22
|
Sunny
|
71°F |
5 to 10 mph
SE
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
49°F |
5 mph
SE
|
|
Thursday
Apr 23
|
Mostly Sunny then Slight Chance Rain Showers
|
76°F |
5 to 15 mph
SE
|
|
Thursday Night
Apr 23
|
Chance Showers And Thunderstorms
|
55°F |
10 mph
SE
|
Major City Forecasts
Live forecast snapshots for major cities across Columbia County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Columbia County.
Largest mapped city population in this region: 10,381.
