Weather Alert
Geff Weather Warning NWS WEATHER ALERT FOR THE GEFF, IL AREA - HARD FROST ADVISORY Issued: 113 PM CDT Sat Oct 17 2026 Geff Weather Warning

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Geff, IL Weather Forecast & Current Conditions

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Geff Weather Map
UTC Time: 10/18/2026, 04:49
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Geff, IL Regional Weather

Expires:202610180500;;287927
ASUS43 KLOT 180412
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT SAT OCT 17 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>094-180500-
SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     CLEAR     41  39  93 CALM      30.49R TC   5           
CAIRO*         CLEAR     43  40  91 CALM      30.49S TC   6           
EFFINGHAM*     CLEAR     39  38  94 CALM      30.51S TC   4           
MARION         CLEAR     41  37  87 SW2       30.49R TC   5           
MT. VERNON     CLEAR     38  37  97 CALM      30.49S TC   3           
CENTRALIA*     CLEAR     39  38  96 CALM      30.49S TC   4           
SALEM*         CLEAR     42  40  92 MISG      30.49R TC   6           
METROPOLIS*    CLEAR     40  37  90 CALM      30.49S TC   4           
$$


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

Geff, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
32°0°
0%
Sunday
Sunny
68°/ 35° 20°/ 2°
0%
Monday
Sunny
72°/ 38° 22°/ 3°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thursday
Sunny
78°/ 48° 26°/ 9°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the lower 30s. East winds around 5 mph this evening, becoming light and variable.

Carmi, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
45°7°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the mid 30s. East winds around 5 mph this evening, becoming light and variable.

McLeansboro, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
32°0°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 40° 22°/ 4°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
45°7°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the lower 30s. West winds around 5 mph this evening, becoming light and variable.

Albion, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thursday
Sunny
78°/ 48° 26°/ 9°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the mid 30s. Calm winds.

Mount Vernon, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
32°0°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 40° 22°/ 4°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thursday
Sunny
78°/ 48° 26°/ 9°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the lower 30s. East winds around 5 mph this evening, becoming light and variable.

Mount Carmel, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
75°/ 42° 24°/ 6°
0%
Wed Night
Clear
45°7°
0%
Thursday
Sunny
75°/ 48° 24°/ 9°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the mid 30s. East winds around 5 mph this evening, becoming light and variable.

West Frankfort, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 48° 24°/ 9°
0%
Thu Night
Clear
48°9°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the mid 30s. Northeast winds around 5 mph this evening, becoming light and variable.

Poseyville, IN

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 48° 24°/ 9°
0%
Thu Night
Clear
48°9°
0%
Friday
Clear
75°24°
0%
Saturday
Clear
75°24°
0%

Night: Clear. Lows in the mid 30s. Northeast winds around 5 mph this evening, becoming light and variable.

Shawneetown, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 40° 22°/ 4°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
45°7°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the mid 30s. North winds around 5 mph this evening, becoming light and variable.

Harrisburg, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 40° 22°/ 4°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
45°7°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the mid 30s. Northeast winds around 5 mph this evening, becoming light and variable.

Fort Branch, IN

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
72°/ 42° 22°/ 6°
0%
Wed Night
Clear
48°9°
0%
Thursday
Clear
48°9°
0%
Friday
Clear
48°/ 48° 9°/ 9°
0%

Night: Clear. Areas of frost after midnight. Lows in the mid 30s. Northeast winds around 5 mph this evening, becoming light and variable.

Herrin, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
45°7°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the mid 30s. East winds around 5 mph this evening, becoming light and variable.

Vincennes, IN

FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
70°/ 40° 21°/ 4°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°24°
0%
Thursday
Clear
75°24°
0%
Fri Night
Clear
75°24°
0%
Saturday
Sunny
75°24°
0%

Night: Clear. Patchy frost through the late overnight, then widespread frost toward daybreak. Lows in the mid 30s. East winds around 5 mph.

Pinckneyville, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
32°0°
0%
Sunday
Sunny
68°/ 35° 20°/ 2°
0%
Monday
Sunny
72°/ 38° 22°/ 3°
0%
Tuesday
Clear
78°26°
0%
Wednesday
Clear
78°26°
0%
Thursday
Clear
78°/ 48° 26°/ 9°
0%
Fri-Fri Night
Clear
78°26°
0%
Saturday
Sunny
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the lower 30s. North winds around 5 mph this evening, becoming light and variable.

Evansville, IN

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 48° 24°/ 9°
0%
Thursday
Clear
48°9°
0%
Friday
Clear
48°/ 48° 9°/ 9°
0%

Night: Clear. Lows in the mid 30s. North winds around 5 mph this evening, becoming light and variable.

Morganfield, KY

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 40° 22°/ 4°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
45°7°
0%
Friday
Clear
78°26°
0%
Saturday
Clear
78°26°
0%

Night: Clear. Areas of frost after midnight. Lows in the mid 30s. North winds around 5 mph this evening, becoming light and variable.

Boonville, IN

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
72°/ 42° 22°/ 6°
0%
Wed Night
Clear
48°9°
0%
Thursday
Clear
48°9°
0%
Friday
Clear
48°/ 48° 9°/ 9°
0%

Night: Clear. Areas of frost after midnight. Lows in the mid 30s. Northeast winds around 5 mph this evening, becoming light and variable.

Henderson, KY

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thursday
Clear
45°7°
0%
Friday
Clear
45°/ 48° 7°/ 9°
0%

Night: Clear. Lows in the mid 30s. North winds around 5 mph this evening, becoming light and variable.

Carbondale, IL

FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 40° 22°/ 4°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
45°7°
0%
Fri-Fri Night
Clear
78°26°
0%
Saturday
Sunny
78°26°
0%

Night: Clear. Lows in the mid 30s. North winds around 5 mph this evening, becoming light and variable.

Petersburg, IN

FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT SUNDAY
Tonight
Clear
35°2°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 40° 22°/ 4°
0%
Tuesday
Clear
75°24°
0%
Wednesday
Clear
75°/ 45° 24°/ 7°
0%
Thu Night
Clear
48°9°
0%
Friday
Sunny
75°/ 48° 24°/ 9°
0%

Night: Clear. Areas of frost after midnight. Lows in the mid 30s. Northeast winds around 5 mph this evening, becoming light and variable.

Names listed above may include county names.

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