Fairfield, WI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Fairfield, WI in one place.
Mostly sunny, with a high near 79. South wind 0 to 10 mph.
Local Weather Overview
This forecast page for Fairfield, WI is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 23, 2026 12:45 PM CDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for Fairfield, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 23, 2026 12:45 PM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fairfield
Sunday looks like the warmest upcoming period in Fairfield at 91 degrees F.
Friday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Monday at about 10 to 15 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 12:45 PM CDT
- Coverage
- 6 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
Partly cloudy, with a low around 58. South wind 5 to 10 mph.
Partly sunny, with a high near 84. Southwest wind 5 to 10 mph.
Partly cloudy, with a low around 66. Southwest wind 0 to 5 mph.
Mostly sunny, with a high near 91. Southwest wind 0 to 10 mph.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 20%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
Mostly clear, with a low around 62.
Sunny, with a high near 84.
Mostly clear, with a low around 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Mostly Sunny
|
79°F |
0 to 10 mph
S
|
|
Friday Night
Jul 24
|
Partly Cloudy
|
58°F |
5 to 10 mph
S
|
|
Saturday
Jul 25
|
Partly Sunny
|
84°F |
5 to 10 mph
SW
|
|
Saturday Night
Jul 25
|
Partly Cloudy
|
66°F |
0 to 5 mph
SW
|
|
Sunday
Jul 26
|
Mostly Sunny
|
91°F |
0 to 10 mph
SW
|
|
Sunday Night
Jul 26
|
Partly Cloudy then Chance Showers And Thunderstorms
|
71°F |
5 to 10 mph
SW
|
|
Monday
Jul 27
|
Chance Showers And Thunderstorms
|
91°F |
10 to 15 mph
SW
|
|
Monday Night
Jul 27
|
Slight Chance Showers And Thunderstorms
|
66°F |
5 to 10 mph
NW
|
|
Tuesday
Jul 28
|
Slight Chance Rain Showers then Mostly Sunny
|
86°F |
5 to 10 mph
N
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
62°F |
0 to 5 mph
NE
|
|
Wednesday
Jul 29
|
Sunny
|
84°F |
0 to 5 mph
N
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
62°F |
0 to 5 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fairfield.