Fairfield, WI Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers then Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Fairfield, WI in one place.
A slight chance of rain showers before 10am. Mostly cloudy, with a high near 65. East wind 0 to 5 mph. Chance of precipitation is 20%.
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: Sep 24, 2026 6:39 AM CDT.
The active forecast window currently covers Sep 25 to Sep 30, 2026 for Fairfield, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 25 to Sep 30, 2026
- Latest sync
- Sep 24, 2026 6:39 AM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fairfield
Monday looks like the warmest upcoming period in Fairfield at 68 degrees F.
Friday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Tuesday Night at about 10 to 15 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 24, 2026 6:39 AM 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 48. East wind 0 to 5 mph.
Mostly sunny, with a high near 66. East wind 0 to 5 mph.
Mostly cloudy, with a low around 49. Southeast wind 0 to 5 mph.
Partly sunny, with a high near 66. Southeast wind 0 to 5 mph.
Partly cloudy, with a low around 48.
Mostly sunny, with a high near 68.
Partly cloudy, with a low around 51.
A chance of rain showers after 1pm. Mostly sunny, with a high near 68. Chance of precipitation is 40%.
A chance of rain showers before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Sep 25
|
Slight Chance Rain Showers then Mostly Cloudy
|
65°F |
0 to 5 mph
E
|
|
Friday Night
Sep 25
|
Partly Cloudy
|
48°F |
0 to 5 mph
E
|
|
Saturday
Sep 26
|
Mostly Sunny
|
66°F |
0 to 5 mph
E
|
|
Saturday Night
Sep 26
|
Mostly Cloudy
|
49°F |
0 to 5 mph
SE
|
|
Sunday
Sep 27
|
Partly Sunny
|
66°F |
0 to 5 mph
SE
|
|
Sunday Night
Sep 27
|
Partly Cloudy
|
48°F |
0 mph
|
|
Monday
Sep 28
|
Mostly Sunny
|
68°F |
0 to 5 mph
SE
|
|
Monday Night
Sep 28
|
Partly Cloudy
|
51°F |
0 to 5 mph
SE
|
|
Tuesday
Sep 29
|
Mostly Sunny then Chance Rain Showers
|
68°F |
0 to 10 mph
S
|
|
Tuesday Night
Sep 29
|
Showers And Thunderstorms Likely
|
57°F |
10 to 15 mph
S
|
|
Wednesday
Sep 30
|
Showers And Thunderstorms Likely
|
66°F |
15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fairfield.