Allendale, IL Weather Forecast & Current Conditions

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Allendale, IL Weather Maps

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Allendale Weather Map
UTC Time: 9/29/2026, 00:04
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Allendale, IL Regional Weather

Expires:202609290100;;218676
ASUS43 KLOT 290001
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 PM CDT MON SEP 28 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.


ILZ067-068-072-073-078-083-087-091-290100-
SOUTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  CLEAR     69  51  52 N6        30.01R TC  21           
FLORA*         CLEAR     72  50  46 NW5       30.02R TC  22           
FAIRFIELD*     CLEAR     71  47  43 CALM      30.00S TC  21           
HARRISBURG*    CLEAR     70  50  50 CALM      30.00S TC  21           
ROBINSON*      PTCLDY    64  55  72 NE3       30.00S TC  18           
$$

ABBREVIATIONS USED IN REMARKS
   TC - TEMPERATURE IN CELSIUS
  WCI - WIND CHILL INDEX
   HX - HEAT INDEX
  VSB - VISIBILITY
$$

  

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

Allendale, IL

Afternoon
Sunny
78°/ 55° 26°/ 13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
88°/ 68° 31°/ 20°
0%
Thursday
Partly Cloudy
90°/ 68° 32°/ 20°
40%
Friday
Rain Showers
75°/ 60° 24°/ 16°
60%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Partly Cloudy
72°22°
0%

Day: Mostly sunny. Near steady temperature in the upper 70s. Northeast winds around 5 mph.

Night: Mostly clear. Lows in the mid 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Fort Branch, IN

Afternoon
Sunny
78°/ 55° 26°/ 13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
88°/ 68° 31°/ 20°
0%
Thu Night
Rain Showers
68°20°
40%
Friday
Rain Showers
78°/ 62° 26°/ 17°
60%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Rain Showers
72°22°
40%

Day: Mostly sunny. Near steady temperature in the upper 70s. Northeast winds around 5 mph.

Night: Mostly clear. Lows in the mid 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Vincennes, IN

Tonight
Clear
55°13°
0%
Tuesday
Sunny
85°/ 58° 29°/ 14°
0%
Wednesday
Cloudy
90°/ 65° 32°/ 18°
0%
Thursday
Rain Showers
88°/ 68° 31°/ 20°
50%
Friday
Thunderstorms
75°/ 58° 24°/ 14°
60%
Saturday
Rain Showers
72°/ 58° 22°/ 14°
50%
Sun-Sun Night
Rain Showers
72°22°
20%
Monday
Cloudy
68°20°
0%

Night: Clear. Lows in the mid 50s. Northeast winds around 5 mph late this afternoon, becoming light and variable.

Albion, IL

Afternoon
Sunny
78°/ 52° 26°/ 11°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
88°/ 68° 31°/ 20°
0%
Thursday
Partly Cloudy
90°/ 68° 32°/ 20°
40%
Friday
Rain Showers
75°/ 60° 24°/ 16°
60%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Partly Cloudy
72°22°
0%

Day: Mostly sunny. Near steady temperature in the upper 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the lower 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Petersburg, IN

Afternoon
Sunny
78°/ 55° 26°/ 13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
88°/ 68° 31°/ 20°
0%
Thu Night
Rain Showers
68°20°
40%
Friday
Rain Showers
78°/ 62° 26°/ 17°
60%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Rain Showers
72°22°
40%

Day: Mostly sunny. Near steady temperature in the upper 70s. North winds around 5 mph.

Night: Partly cloudy in the evening, then clearing. Lows in the mid 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Poseyville, IN

Afternoon
Sunny
78°/ 52° 26°/ 11°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
88°/ 68° 31°/ 20°
0%
Thu Night
Rain Showers
68°20°
40%
Friday
Rain Showers
80°/ 62° 27°/ 17°
60%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Rain Showers
72°22°
40%

Day: Sunny. Near steady temperature in the upper 70s. Northeast winds around 5 mph.

Night: Mostly clear. Lows in the lower 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Boonville, IN

Afternoon
Sunny
78°/ 55° 26°/ 13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
88°/ 68° 31°/ 20°
0%
Thu Night
Rain Showers
68°20°
40%
Friday
Rain Showers
82°/ 62° 28°/ 17°
60%
Sat Night
Rain Showers
62°17°
50%
Sunday
Rain Showers
72°22°
50%

Day: Sunny. Near steady temperature in the upper 70s. Northeast winds around 5 mph.

Night: Mostly clear. Lows in the mid 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Washington, IN

Tonight
Clear
55°13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Cloudy
88°/ 65° 31°/ 18°
0%
Thursday
Rain Showers
88°/ 68° 31°/ 20°
50%
Friday
Thunderstorms
75°/ 58° 24°/ 14°
60%
Sat Night
Rain Showers
58°14°
40%
Sunday
Rain Showers
72°/ 52° 22°/ 11°
30%
Monday
Cloudy
68°20°
0%

Night: Clear. Lows in the mid 50s. North winds around 5 mph late this afternoon, becoming light and variable.

Carmi, IL

Afternoon
Sunny
80°/ 52° 27°/ 11°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
90°/ 68° 32°/ 20°
0%
Thu Night
Rain Showers
68°20°
40%
Friday
Rain Showers
78°/ 62° 26°/ 17°
60%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Rain Showers
72°22°
40%

Day: Sunny. Near steady temperature around 80. Northeast winds around 5 mph.

Night: Clear. Lows in the lower 50s. Calm winds.

Fairfield, IL

Afternoon
Sunny
78°/ 52° 26°/ 11°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
88°/ 68° 31°/ 20°
0%
Thursday
Rain Showers
90°/ 68° 32°/ 20°
50%
Friday
Rain Showers
75°/ 58° 24°/ 14°
60%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Partly Cloudy
72°22°
0%

Day: Sunny. Near steady temperature in the upper 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the lower 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Evansville, IN

Afternoon
Sunny
80°/ 55° 27°/ 13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
88°/ 68° 31°/ 20°
0%
Thu Night
Rain Showers
68°20°
40%
Friday
Rain Showers
82°/ 62° 28°/ 17°
60%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Rain Showers
72°22°
40%

Day: Sunny. Near steady temperature around 80. Northeast winds around 5 mph.

Night: Mostly clear. Lows in the mid 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Sullivan, IN

Tonight
Clear
55°13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Cloudy
88°/ 65° 31°/ 18°
0%
Thursday
Rain Showers
88°/ 65° 31°/ 18°
50%
Friday
Thunderstorms
72°/ 58° 22°/ 14°
60%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
50%
Sun-Sun Night
Rain Showers
70°21°
20%
Monday
Cloudy
68°20°
0%

Night: Clear. Lows in the mid 50s. Northeast winds around 5 mph late this afternoon, becoming light and variable.

Jasper, IN

Tonight
Cloudy
52°11°
0%
Tuesday
Sunny
80°/ 58° 27°/ 14°
0%
Wednesday
Sunny
88°/ 65° 31°/ 18°
0%
Thursday
Sunny
88°/ 68° 31°/ 20°
40%
Friday
Thunderstorms
78°/ 60° 26°/ 16°
60%
Saturday
Rain Showers
72°/ 58° 22°/ 14°
50%
Sunday
Thunderstorms
72°/ 52° 22°/ 11°
50%
Monday
Rain Showers
68°20°
20%

Night: Partly cloudy in the evening then becoming clear. Lows in the lower 50s. Northeast winds up to 5 mph.

Linton, IN

Tonight
Clear
55°13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Cloudy
88°/ 65° 31°/ 18°
0%
Thursday
Rain Showers
88°/ 65° 31°/ 18°
50%
Friday
Thunderstorms
72°/ 58° 22°/ 14°
60%
Saturday
Rain Showers
70°/ 58° 21°/ 14°
50%
Sunday
Rain Showers
70°/ 52° 21°/ 11°
30%
Monday
Cloudy
65°18°
0%

Night: Clear. Lows in the mid 50s. Northeast winds around 5 mph late this afternoon, becoming light and variable.

Loogootee, IN

Tonight
Clear
55°13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Cloudy
88°/ 65° 31°/ 18°
0%
Thursday
Rain Showers
88°/ 68° 31°/ 20°
50%
Friday
Thunderstorms
75°/ 58° 24°/ 14°
60%
Sat-Sat Night
Rain Showers
70°21°
50%
Sunday
Rain Showers
70°/ 52° 21°/ 11°
30%
Monday
Cloudy
68°20°
0%

Night: Clear. Lows in the mid 50s. North winds around 5 mph late this afternoon, becoming light and variable.

McLeansboro, IL

Afternoon
Sunny
78°/ 52° 26°/ 11°
0%
Tuesday
Sunny
85°/ 58° 29°/ 14°
0%
Wednesday
Sunny
90°/ 68° 32°/ 20°
0%
Thursday
Partly Cloudy
90°/ 68° 32°/ 20°
50%
Friday
Rain Showers
78°/ 60° 26°/ 16°
60%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Rain Showers
72°22°
30%

Day: Sunny. Near steady temperature in the upper 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the lower 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Rockport, IN

Afternoon
Sunny
78°/ 55° 26°/ 13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
88°/ 65° 31°/ 18°
0%
Thu Night
Rain Showers
68°20°
40%
Friday
Rain Showers
82°/ 62° 28°/ 17°
60%
Sat Night
Rain Showers
62°17°
50%
Sunday
Rain Showers
72°22°
50%

Day: Sunny. Near steady temperature in the upper 70s. North winds around 5 mph.

Night: Partly cloudy in the evening, then becoming clear. Lows in the mid 50s. Northeast winds around 5 mph.

Henderson, KY

Afternoon
Sunny
80°/ 55° 27°/ 13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
88°/ 68° 31°/ 20°
0%
Thu Night
Rain Showers
68°20°
40%
Friday
Rain Showers
82°/ 62° 28°/ 17°
60%
Sat-Sat Night
Rain Showers
75°24°
50%
Sunday
Rain Showers
72°22°
50%

Day: Sunny. Near steady temperature around 80. North winds around 5 mph.

Night: Mostly clear. Lows in the mid 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Shawneetown, IL

Afternoon
Sunny
80°/ 52° 27°/ 11°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Sunny
88°/ 68° 31°/ 20°
0%
Thu Night
Rain Showers
68°20°
40%
Friday
Rain Showers
82°/ 62° 28°/ 17°
60%
Sat-Sat Night
Rain Showers
72°22°
50%
Sunday
Partly Cloudy
72°22°
0%

Day: Sunny. Near steady temperature around 80. Northeast winds around 5 mph.

Night: Clear. Lows in the lower 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Brazil, IN

Tonight
Clear
55°13°
0%
Tuesday
Sunny
82°/ 58° 28°/ 14°
0%
Wednesday
Cloudy
88°/ 68° 31°/ 20°
0%
Thursday
Rain Showers
88°/ 65° 31°/ 18°
60%
Fri Night
Thunderstorms
58°14°
50%
Saturday
Rain Showers
70°/ 55° 21°/ 13°
50%
Sun-Sun Night
Rain Showers
70°21°
20%
Monday
Sunny
65°18°
0%

Night: Clear. Lows in the mid 50s. North winds around 5 mph late this afternoon, becoming light and variable.

Names listed above may include county names.

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