Local Forecast

Fairfield, IL Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Fairfield, IL.

No Active Alerts

Hour-by-Hour  Current Observation

Sunday 9:55 PM CDTSunday 9:55 PM

°F °C
Regional Observations →
77°F

Clear

  • 89° / 73° High / Low
  • 77° Feels Like
  • 0% Chance of Rain

Wind

5 mph

E

UV Index

0

None

Humidity

74%

Dew 68°F

Sun

5:29 AM · 8:14 PM

Rise · Set

Source: FLORA (KFOA). Slider scrubs the next 12 hours.

5-Day Outlook

Through Thursday

Local Radar →

Today

89° 73°

Mostly Cloudy

Overnight: Thunderstorms Likely

Detailed forecast

Today

Partly sunny, with a high near 89. South southeast wind around 9 mph.

Night

A chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 72. South southeast wind around 7 mph. Chance of precipitation is 50%.

Monday

86° 71°

Thunderstorms

Overnight: Thunderstorms

Detailed forecast

Monday

Showers and thunderstorms likely before 9am, then a chance of showers and thunderstorms between 9am and 1pm, then showers and thunderstorms. Mostly cloudy. High near 85, with temperatures falling to around 82 in the afternoon. South wind 6 to 10 mph. Chance of precipitation is 90%.

Night

Showers and thunderstorms. Mostly cloudy. Low around 71, with temperatures rising to around 73 overnight. South wind 5 to 8 mph. Chance of precipitation is 90%.

Tuesday

89° 75°

Thunderstorms Likely

Overnight: Chance of Scattered Thunderstorms

Detailed forecast

Tuesday

Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. South southwest wind around 8 mph. Chance of precipitation is 60%.

Night

A chance of showers and thunderstorms before 1am. Mostly clear, with a low around 74. South southwest wind around 7 mph. Chance of precipitation is 40%.

Wednesday

91° 75°

Mostly Sunny

Overnight: Slight Chance of Showers

Detailed forecast

Wednesday

Sunny, with a high near 91. South southwest wind 6 to 12 mph, with gusts as high as 18 mph.

Night

A slight chance of rain showers after 1am. Mostly clear, with a low around 75. South southwest wind around 10 mph, with gusts as high as 18 mph.

Thursday

93° 71°

Chance of Scattered Thunderstorms

Overnight: Thunderstorms Likely

Detailed forecast

Thursday

A slight chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Sunny, with a high near 92. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.

Night

A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 70. West southwest wind 6 to 12 mph, with gusts as high as 20 mph.

Fairfield, IL Weather Analysis Tools