Current Weather Forecast for Fairfield

IL 62837  |   7:27pm

Weather Conditions

87°

Feels Like 97°

Sunny

72° 93° HEAT ADVISORY

HEAT ADVISORY

0

UV Index

Moderate

Air Quality

S 8 mph

Wind

0 in

rain

Tonight

Sun 6/28

73°

Lowest Temperature

9%

Clear to partly cloudy. Low 73F. Winds S at 5 to 10 mph.

Tomorrow

Mon 6/29

93°

Highest Temperature

8%

Intervals of clouds and sunshine. Hot and humid. High 93F. Winds S at 10 to 15 mph.

Tomorrow night

Mon 6/29

73°

Lowest Temperature

8%

Partly cloudy skies. Low 73F. Winds SSW at 5 to 10 mph.

Next 12 Hours Next 7 Days

Next 12 Hours Forecast in Fairfield

Hourly Weather Forecast & Temperature

8PM

2%

85°

Feels Like 95°

HEAT ADVISORY

Sunny

S 7 mph

Wind

1012 mb

Pressure

74%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

9PM

2%

82°

Feels Like 90°

Clear

S 6 mph

Wind

1012 mb

Pressure

81%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

10PM

2%

81°

Feels Like 88°

Clear

SSW 7 mph

Wind

1012 mb

Pressure

84%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

11PM

3%

79°

Feels Like 86°

Clear

S 5 mph

Wind

1012 mb

Pressure

89%

Humidity

0

UV Index

10mi

Visibility

6%

Cloud Cover

12AM

3%

77°

Feels Like 77°

Clear

S 4 mph

Wind

1012 mb

Pressure

92%

Humidity

0

UV Index

10mi

Visibility

4%

Cloud Cover

1AM

3%

76°

Feels Like 76°

Clear

S 4 mph

Wind

1013 mb

Pressure

94%

Humidity

0

UV Index

9mi

Visibility

4%

Cloud Cover

2AM

5%

76°

Feels Like 76°

Mostly Clear

S 4 mph

Wind

1013 mb

Pressure

96%

Humidity

0

UV Index

9mi

Visibility

20%

Cloud Cover

3AM

9%

75°

Feels Like 80°

Mostly Clear

S 3 mph

Wind

1013 mb

Pressure

95%

Humidity

0

UV Index

9mi

Visibility

29%

Cloud Cover

4AM

9%

75°

Feels Like 80°

Clear

S 3 mph

Wind

1014 mb

Pressure

96%

Humidity

0

UV Index

8mi

Visibility

17%

Cloud Cover

5AM

9%

75°

Feels Like 80°

Mostly Clear

S 3 mph

Wind

1014 mb

Pressure

96%

Humidity

0

UV Index

8mi

Visibility

29%

Cloud Cover

6AM

9%

74°

Feels Like 79°

Partly Cloudy

S 3 mph

Wind

1015 mb

Pressure

96%

Humidity

0

UV Index

8mi

Visibility

37%

Cloud Cover

7AM

8%

77°

Feels Like 82°

Partly Cloudy

S 4 mph

Wind

1015 mb

Pressure

94%

Humidity

0

UV Index

9mi

Visibility

47%

Cloud Cover

Sun 6/28

Sun

9%

72°

93°

Mostly clear. Lows overnight in the low 70s.

97°

Feels Like

S 8 mph

Wind

89%

Humidity

0

UV Index

5:31 AM

Sunrise

8:21 PM

Sunset

Mon 6/29

Mon

8%

73°

93°

Times of sun and clouds. Highs in the low 90s and lows in the low 70s.

104°

Feels Like

S 10 mph

Wind

69%

Humidity

9

UV Index

5:32 AM

Sunrise

8:21 PM

Sunset

Tue 6/30

Tue

7%

73°

96°

EXTREME HEAT

Sunshine. Highs in the mid 90s and lows in the low 70s.

105°

Feels Like

SSW 8 mph

Wind

63%

Humidity

10

UV Index

5:32 AM

Sunrise

8:21 PM

Sunset

Wed 7/1

Wed

7%

73°

95°

EXTREME HEAT

Abundant sunshine. Highs in the mid 90s and lows in the mid 70s.

104°

Feels Like

SSW 7 mph

Wind

62%

Humidity

10

UV Index

5:33 AM

Sunrise

8:21 PM

Sunset

Thu 7/2

Thu

23%

76°

94°

EXTREME HEAT

More sun than clouds. Highs in the mid 90s and lows in the mid 70s.

105°

Feels Like

SSW 6 mph

Wind

64%

Humidity

10

UV Index

5:33 AM

Sunrise

8:21 PM

Sunset

Fri 7/3

Fri

24%

76°

92°

Times of sun and clouds. Highs in the low 90s and lows in the mid 70s.

103°

Feels Like

SSW 5 mph

Wind

66%

Humidity

9

UV Index

5:34 AM

Sunrise

8:21 PM

Sunset

Sat 7/4

Sat

34%

74°

91°

Isolated thunderstorms. Highs in the low 90s and lows in the low 70s.

100°

Feels Like

SSW 5 mph

Wind

68%

Humidity

9

UV Index

5:34 AM

Sunrise

8:20 PM

Sunset

Sun 7/5

Sun

43%

73°

88°

Morning thunderstorms. Highs in the upper 80s and lows in the low 70s.

95°

Feels Like

SW 5 mph

Wind

71%

Humidity

10

UV Index

5:35 AM

Sunrise

8:20 PM

Sunset

Need to see beyond 12 Hours?

Find more forecast on the FREE FOX WEATHER App

GO TO APP STORE

Looking for homes in this area?

• 406 NW 6th St, Fairfield, IL 62837
• 1775 County Road 725 N, Fairfield, IL 62837
• 304 W Parkhurst St, Fairfield, IL 62837

Sponsored by Redfin. Housing data supplied by Redfin independent of FOX Weather.

Latest Stories from Illinois

Extreme heat dome building with over 230 million to swelter in days leading up to America's 250th birthday

Millions of Americans hoping for a warm holiday weekend will get their wish, as temperatures are expected to soar above average across the country.

1 hour ago

4 dead as flash flooding slams Kentucky, triggering emergencies and evacuations

Thunderstorms and flash flooding are threatening the first half of the weekend for millions across parts of the Ohio Valley and East Coast. Those with outdoor plans could be dodging showers on both Saturday and Sunday ahead of a return to 90-degree weather by the middle of next week.

Illinois leads the country for most tornado reports so far in 2026 and it's only June

We're nearly halfway through the year, and it's been an active year for severe weather thus far, with more than 800 reported tornadoes across the U.S.

Deadly tornado outbreak slams Illinois, leaving a path of destruction amid ongoing severe weather threat

A violent tornado outbreak struck the Plains on Sunday, bringing a destructive mix of hail, fierce winds, and damaging tornadoes. The severe weather triggered widespread destruction across the region, completely leveling multiple homes and causing fatalities.

Load More Stories