Fairfield, IL Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Fairfield, IL in one place.
A chance of rain showers between 2pm and 4pm, then a chance of showers and thunderstorms. Partly sunny. High near 75, with temperatures falling to around 72 in the afternoon. West southwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Local Weather Overview
This forecast page for Fairfield, IL 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: Apr 9, 2026 4:33 PM CDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for Fairfield, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 4:33 PM CDT
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Fairfield
Tuesday looks like the warmest upcoming period in Fairfield at 85 degrees F.
Friday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Sunday at about 6 to 17 mph SSW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 4:33 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- PAH
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. North northeast wind 5 to 8 mph. Chance of precipitation is 50%.
A slight chance of rain showers before 4pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 76. East wind around 6 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 59. Southeast wind around 6 mph. Chance of precipitation is 20%.
Partly sunny, with a high near 81. South southwest wind 6 to 17 mph, with gusts as high as 24 mph.
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. South southwest wind around 13 mph, with gusts as high as 23 mph.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South southwest wind 13 to 16 mph, with gusts as high as 24 mph.
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South southwest wind around 13 mph, with gusts as high as 22 mph.
A chance of showers and thunderstorms. Partly sunny, with a high near 85. South southwest wind 10 to 16 mph, with gusts as high as 24 mph.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South southwest wind around 13 mph, with gusts as high as 22 mph.
A chance of showers and thunderstorms. Mostly cloudy, with a high near 82. South southwest wind 12 to 16 mph, with gusts as high as 24 mph.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Southwest wind 7 to 12 mph, with gusts as high as 20 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Partly Sunny then Chance Showers And Thunderstorms
|
75°F |
8 to 13 mph
WSW
|
|
Friday Night
Apr 10
|
Chance Showers And Thunderstorms
|
50°F |
5 to 8 mph
NNE
|
|
Saturday
Apr 11
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
76°F |
6 mph
E
|
|
Saturday Night
Apr 11
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
59°F |
6 mph
SE
|
|
Sunday
Apr 12
|
Partly Sunny
|
81°F |
6 to 17 mph
SSW
|
|
Sunday Night
Apr 12
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
65°F |
13 mph
SSW
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms
|
81°F |
13 to 16 mph
SSW
|
|
Monday Night
Apr 13
|
Slight Chance Showers And Thunderstorms
|
67°F |
13 mph
SSW
|
|
Tuesday
Apr 14
|
Chance Showers And Thunderstorms
|
85°F |
10 to 16 mph
SSW
|
|
Tuesday Night
Apr 14
|
Chance Showers And Thunderstorms
|
67°F |
13 mph
SSW
|
|
Wednesday
Apr 15
|
Chance Showers And Thunderstorms
|
82°F |
12 to 16 mph
SSW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
60°F |
7 to 12 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fairfield.
