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Fairfield, IL Weather Forecast & Current Conditions

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Fairfield, IL Weather Maps

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Fairfield Weather Map
UTC Time: 10/21/2026, 00:58
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Fairfield, IL Regional Weather

Expires:202610210200;;912465
ASUS43 KLOT 210056
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 PM CDT TUE OCT 20 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
  REPORT WEATHER SUCH AS PRECIPITATION OR FOG.


ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210200-
SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     CLEAR     56  47  71 CALM      30.28S TC  13           
$$


SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed  PRES - Barometric Pressure  VSB - Visibility
WCI - Wind Chill Index  E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Fairfield, IL

Tonight
Clear
42°6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Cloudy
75°24°
0%
Sun Night
Cloudy
75°24°
0%
Monday
Partly Cloudy
75°/ 48° 24°/ 9°
0%
Tuesday
Partly Cloudy
68°20°
0%

Night: Clear. Lows in the lower 40s. Calm winds.

Carmi, IL

Tonight
Clear
42°6°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Cloudy
75°24°
0%
Sun Night
Cloudy
75°24°
0%
Monday
Partly Cloudy
75°/ 48° 24°/ 9°
0%

Night: Clear. Lows in the lower 40s. Calm winds.

McLeansboro, IL

Tonight
Clear
42°6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Cloudy
75°24°
0%
Tuesday
Cloudy
75°24°
0%
Mon Night
Cloudy
75°24°
0%
Tuesday
Sunny
68°20°
0%

Night: Clear. Lows in the lower 40s. Calm winds.

Albion, IL

Tonight
Clear
42°6°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Cloudy
75°24°
0%
Tuesday
Cloudy
75°24°
0%
Mon Night
Cloudy
75°24°
0%
Tuesday
Partly Cloudy
68°20°
0%

Night: Clear. Lows in the lower 40s. Calm winds.

Mount Vernon, IL

Tonight
Clear
42°6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Friday
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Cloudy
78°26°
0%
Sun Night
Cloudy
78°26°
0%
Mon-Mon Night
Mostly Cloudy
75°24°
0%
Tuesday
Partly Cloudy
68°20°
0%

Night: Mostly clear. Lows in the lower 40s. Calm winds.

Mount Carmel, IL

Tonight
Clear
42°6°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Sunny
75°24°
0%
Sat Night
Cloudy
48°9°
0%
Tuesday
Cloudy
48°9°
0%
Mon Night
Cloudy
48°9°
0%
Tuesday
Sunny
68°20°
0%

Night: Clear. Areas of fog after midnight. Lows in the lower 40s. Calm winds.

Poseyville, IN

Tonight
Clear
42°6°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Sunny
75°24°
0%
Sat Night
Cloudy
48°9°
0%
Tuesday
Cloudy
48°9°
0%
Mon Night
Cloudy
48°9°
0%
Tuesday
Sunny
68°20°
0%

Night: Clear. Areas of fog after midnight. Lows in the lower 40s. Calm winds.

West Frankfort, IL

Tonight
Clear
45°7°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Friday
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Cloudy
78°26°
0%
Tuesday
Cloudy
78°26°
0%
Mon Night
Cloudy
78°26°
0%
Tuesday
Sunny
68°20°
0%

Night: Mostly clear. Lows in the mid 40s. Calm winds.

Shawneetown, IL

Tonight
Clear
42°6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sun Night
Cloudy
48°9°
0%
Monday
Partly Cloudy
75°/ 48° 24°/ 9°
0%

Night: Clear. Areas of fog after midnight. Lows in the lower 40s. Calm winds.

Harrisburg, IL

Tonight
Clear
42°6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Fri-Fri Night
Clear
75°24°
0%
Saturday
Cloudy
78°26°
0%
Sun Night
Cloudy
78°26°
0%
Monday
Partly Cloudy
75°/ 48° 24°/ 9°
0%

Night: Mostly clear. Lows in the lower 40s. Calm winds.

Fort Branch, IN

Tonight
Clear
42°6°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Sunny
75°24°
0%
Sat Night
Cloudy
48°9°
0%
Tuesday
Cloudy
48°9°
0%
Mon Night
Cloudy
48°9°
0%
Tuesday
Sunny
68°20°
0%

Night: Clear. Areas of fog after midnight. Lows in the lower 40s. Calm winds.

Herrin, IL

Tonight
Clear
42°6°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Friday
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Cloudy
78°26°
0%
Sun Night
Cloudy
78°26°
0%
Monday
Partly Cloudy
75°/ 48° 24°/ 9°
0%

Night: Mostly clear. Lows in the lower 40s. Calm winds.

Vincennes, IN

Tonight
Clear
42°6°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
72°/ 45° 22°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Sunny
72°22°
0%
Sat Night
Cloudy
48°9°
0%
Tuesday
Cloudy
48°9°
0%
Mon Night
Cloudy
48°9°
0%
Tuesday
Cloudy
68°20°
0%

Night: Clear. Patchy fog toward daybreak. Lows in the lower 40s. Northeast winds around 5 mph through the late overnight, becoming light and variable.

Evansville, IN

Tonight
Clear
45°7°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
75°/ 48° 24°/ 9°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Sunny
75°24°
0%
Sat Night
Cloudy
48°9°
0%
Tuesday
Cloudy
48°9°
0%
Mon Night
Cloudy
48°9°
0%
Tuesday
Sunny
68°20°
0%

Night: Clear. Areas of fog after midnight. Lows in the mid 40s. Northeast winds around 5 mph this evening, becoming light and variable.

Morganfield, KY

Tonight
Clear
42°6°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Sunny
75°24°
0%
Sat Night
Cloudy
48°9°
0%
Tuesday
Cloudy
48°9°
0%
Mon Night
Cloudy
48°9°
0%
Tuesday
Sunny
68°20°
0%

Night: Clear. Areas of fog after midnight. Lows in the lower 40s. Northeast winds around 5 mph this evening, becoming light and variable.

Pinckneyville, IL

Tonight
Clear
45°7°
0%
Wednesday
Sunny
75°/ 45° 24°/ 7°
0%
Thursday
Sunny
75°/ 48° 24°/ 9°
0%
Friday
Sunny
75°/ 45° 24°/ 7°
0%
Saturday
Cloudy
78°26°
0%
Sun Night
Cloudy
78°26°
0%
Monday
Partly Cloudy
75°/ 48° 24°/ 9°
0%
Tuesday
Partly Cloudy
68°20°
0%

Night: Mostly clear. Lows in the mid 40s. Calm winds.

Boonville, IN

Tonight
Clear
42°6°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
72°/ 45° 22°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Sunny
75°24°
0%
Sat Night
Cloudy
48°9°
0%
Tuesday
Cloudy
48°9°
0%
Mon Night
Cloudy
48°9°
0%
Tuesday
Sunny
68°20°
0%

Night: Clear. Lows in the lower 40s. Calm winds.

Hodgenville, KY

Tonight
Clear
42°6°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
72°/ 42° 22°/ 6°
0%
Friday
Sunny
68°/ 45° 20°/ 7°
0%
Saturday
Sunny
72°/ 45° 22°/ 7°
0%
Sunday
Sunny
75°/ 45° 24°/ 7°
0%
Monday
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Sunny
68°20°
0%

Night: Clear. Areas of fog late in the night. Lows in the lower 40s. Northeast winds up to 5 mph in the evening becoming light.

Henderson, KY

Tonight
Clear
45°7°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
75°/ 48° 24°/ 9°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Sunny
75°24°
0%
Sat Night
Cloudy
48°9°
0%
Tuesday
Cloudy
48°9°
0%
Mon Night
Cloudy
48°9°
0%
Tuesday
Sunny
68°20°
0%

Night: Clear. Areas of fog after midnight. Lows in the mid 40s. Northeast winds around 5 mph this evening, becoming light and variable.

Elizabethtown, IL

Tonight
Clear
42°6°
0%
Wednesday
Sunny
72°/ 45° 22°/ 7°
0%
Thursday
Sunny
75°/ 45° 24°/ 7°
0%
Fri-Fri Night
Clear
72°22°
0%
Saturday
Sunny
75°/ 48° 24°/ 9°
0%
Sun Night
Cloudy
48°9°
0%
Monday
Partly Cloudy
75°/ 48° 24°/ 9°
0%

Night: Clear. Areas of fog after midnight. Lows in the lower 40s. Calm winds.

Names listed above may include county names.

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