Live Weather & Forecast

Weather in Fairfield

Illinois, United States · Real-time conditions & 3-day outlook

Flag of United States
Sunny
25°C
Feels like 25°C
77°F / Feels 78°F
Sunny
Fairfield, Illinois
🌞 Daytime
Updated: 2026-04-12 17:00
💧
Humidity
37%
💨
Wind
31.3 km/h SSW
🌬️
Wind Gust
48.1 km/h
🌡️
Pressure
1017 mb
👁️
Visibility
16 km
☀️
UV Index
1.2 (Low)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
0%
💦
Dew Point
11.5°C
🌐
Wind Degree
194°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
146.9 μg/m³
NO₂
3.3 μg/m³
O₃
111 μg/m³
SO₂
2.3 μg/m³
PM 2.5
7.3 μg/m³
PM 10
8 μg/m³

Weather Alerts 5

Met · Moderate · Expected
Special Weather Statement issued April 12 at 12:21AM CDT by NWS Paducah KY

Elevated conditions for wildfires are expected this afternoon, mainly between 12 PM and 7 PM CDT. Relative humidity values will fall to 25 to 35% this afternoon, and winds will be breezy from the south, sustained at 10 to 15 mph with gusts of 25 to 30 mph forecast. Vegetation is dry due to ongoing moderate to severe drought conditions over much of the region. Outdoor burning and activities that i...

Met · Severe · Immediate
Flood Warning issued April 11 at 9:40PM EDT until April 13 at 9:42PM EDT by NWS Indianapolis IN

...The Flood Warning is extended for the following river in Indiana...Illinois... Wabash River at Hutsonville Legacy Power Plant Site, and Riverton. .The last of lowland flooding continues along a short portion of the Wabash River in western Indiana, affecting the Hutsonville and Riverton areas. Flooding is expected to end there on Monday. Flooding ended at Terre Haute and Montezuma earlier tod...

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov/ind. The next statement should be issued Sunday afternoon by around 300 PM EDT /200 PM CDT/.

Met · Severe · Immediate
Flood Warning issued April 11 at 9:40PM EDT until April 14 at 12:30AM EDT by NWS Indianapolis IN

...The Flood Warning is extended for the following river in Indiana...Illinois... Wabash River at Hutsonville Legacy Power Plant Site, and Riverton. .The last of lowland flooding continues along a short portion of the Wabash River in western Indiana, affecting the Hutsonville and Riverton areas. Flooding is expected to end there on Monday. Flooding ended at Terre Haute and Montezuma earlier tod...

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov/ind. The next statement should be issued Sunday afternoon by around 300 PM EDT /200 PM CDT/.

Met · Severe · Immediate
Flood Warning issued April 12 at 12:09PM EDT until April 13 at 10:00PM EDT by NWS Indianapolis IN

...The Flood Warning continues for the following rivers in Illinois and Indiana... Wabash River at Hutsonville and Riverton. .The last of lowland flooding continues along a short portion of the Wabash River in western Indiana, affecting the Hutsonville and Riverton areas. Flooding is expected to end there on Monday. The crest as of early Sunday afternoon was just downstream of Mount Carmel. Th...

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov/ind. The next statement should be issued this evening by around 1130 PM EDT /1030 PM CDT/.

Met · Severe · Immediate
Flood Warning issued April 12 at 12:09PM EDT until April 14 at 12:30AM EDT by NWS Indianapolis IN

...The Flood Warning continues for the following rivers in Illinois and Indiana... Wabash River at Hutsonville and Riverton. .The last of lowland flooding continues along a short portion of the Wabash River in western Indiana, affecting the Hutsonville and Riverton areas. Flooding is expected to end there on Monday. The crest as of early Sunday afternoon was just downstream of Mount Carmel. Th...

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov/ind. The next statement should be issued this evening by around 1130 PM EDT /1030 PM CDT/.

Today's Hourly Forecast

24-hour breakdown for Fairfield, Illinois

12 AM
Clear
17°
Clear
💧 73% 💨 11.5 km/h
1 AM
Clear
17°
Clear
💧 76% 💨 13 km/h
2 AM
Clear
16°
Clear
💧 80% 💨 14.8 km/h
3 AM
Clear
16°
Clear
💧 84% 💨 13 km/h
4 AM
Clear
16°
Clear
💧 84% 💨 12.6 km/h
5 AM
Clear
15°
Clear
💧 87% 💨 13 km/h
6 AM
Clear
15°
Clear
💧 87% 💨 13.3 km/h
7 AM
Sunny
17°
Sunny
💧 85% 💨 13.3 km/h
8 AM
Sunny
19°
Sunny
💧 74% 💨 16.6 km/h
9 AM
Sunny
21°
Sunny
💧 62% 💨 21.2 km/h
10 AM
Sunny
25°
Sunny
💧 55% 💨 22.7 km/h
11 AM
Sunny
26°
Sunny
💧 50% 💨 25.6 km/h
12 PM
Sunny
28°
Sunny
💧 45% 💨 30.2 km/h
1 PM
Sunny
29°
Sunny
💧 40% 💨 31.7 km/h
2 PM
Sunny
29°
Sunny
💧 39% 💨 29.9 km/h
3 PM
Sunny
29°
Sunny
💧 39% 💨 28.4 km/h
4 PM
Sunny
28°
Sunny
💧 41% 💨 31.3 km/h
5 PM
Sunny
25°
Sunny
💧 37% 💨 31.3 km/h
6 PM
Sunny
27°
Sunny
💧 41% 💨 31.7 km/h
7 PM
Sunny
25°
Sunny
💧 44% 💨 30.6 km/h
8 PM
Clear
24°
Clear
💧 43% 💨 30.6 km/h
9 PM
Clear
24°
Clear
💧 43% 💨 34.2 km/h
10 PM
Patchy rain nearby
23°
Patchy rain nearby
💧 45% 💨 34.6 km/h 🌧️ 100%
11 PM
Patchy rain nearby
22°
Patchy rain nearby
💧 46% 💨 31.3 km/h 🌧️ 62%

3-Day Forecast

Daily overview for Fairfield, Illinois

Today
Patchy rain nearby
Patchy rain nearby
30° / 15°
🌧️ 73% chance of rain
💧 Avg. humidity: 58%
💨 Max wind: 34.6 km/h
🌧️ Total precip: 0.11 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:22 AM
🌇 Sunset: 07:28 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Patchy rain nearby
Patchy rain nearby
25° / 18°
🌧️ 88% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 27.7 km/h
🌧️ Total precip: 0.5 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:20 AM
🌇 Sunset: 07:29 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Thundery outbreaks in nearby
Thundery outbreaks in nearby
28° / 19°
🌧️ 0% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 36.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.1
🌅 Sunrise: 06:19 AM
🌇 Sunset: 07:29 PM
🌙 Waning Crescent
🌑 Moon: 15% lit

Best Time to Visit Fairfield

Plan your trip to Fairfield, United States around the most favorable weather conditions.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to Fairfield 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Fairfield?
Current conditions in Fairfield: Sunny, temperature 25°C, humidity 37%.
What is the best time to visit Fairfield?
The best time to visit Fairfield is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Fairfield?
Fairfield is located at approximately 38.4° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Fairfield?
The wettest period in Fairfield is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Fairfield?
For visits to Fairfield during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Fairfield in?
Fairfield is located in United States, in the state of Illinois.
What are the public holidays in Fairfield in 2026?
View the 2026 public holidays for Fairfield on our Holidays page.
What are the GPS coordinates used for the weather forecast in Fairfield?
The weather forecast for Fairfield uses coordinates 38.3789, -88.3598.