Ralph Jacobs, IL Weather Forecast & Current Conditions

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Ralph Jacobs, IL Weather Maps

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Ralph Jacobs Weather Map
UTC Time: 10/12/2026, 03:23
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Ralph Jacobs, IL Regional Weather

Expires:202610120400;;946764
ASUS43 KLOT 120310
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 PM CDT SUN OCT 11 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.


ILZ079-100>102-120400-
SOUTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          CLEAR     68  57  68 S10       29.97R TC  20           
BELLEVILLE     CLEAR     68  61  78 CALM      29.95S TC  20           
CAHOKIA*       CLEAR     69  59  70 CALM      29.96R TC  21           
SPARTA*        CLEAR     71  58  64 S5        30.00R TC  22           
$$


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

Ralph Jacobs, IL

Tonight
Clear
62°17°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
68°20°
0%
Tuesday
Sunny
92°/ 72° 33°/ 22°
50%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
80%
Friday
Partly Cloudy
65°/ 38° 18°/ 3°
0%
Sat-Sat Night
Clear
60°16°
0%
Sunday
Sunny
68°20°
0%

Night: Mostly clear. Not as cool with lows in the lower 60s. South winds around 5 mph.

Jefferson County, MO

Tonight
Clear
62°17°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
68°20°
0%
Tuesday
Sunny
92°/ 72° 33°/ 22°
50%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
80%
Friday
Partly Cloudy
65°/ 38° 18°/ 3°
0%
Sat-Sat Night
Clear
60°16°
0%
Sunday
Sunny
68°20°
0%

Night: Mostly clear. Not as cool with lows in the lower 60s. South winds around 5 mph.

Alton, MO

Tonight
Clear
62°17°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
70°21°
0%
Tuesday
Sunny
92°/ 72° 33°/ 22°
50%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
90%
Friday
Partly Cloudy
65°/ 40° 18°/ 4°
0%
Saturday
Sunny
62°/ 38° 17°/ 3°
0%

Night: Mostly clear. Not as cool with lows in the lower 60s. South winds around 5 mph.

Alton, IL

Tonight
Clear
62°17°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
70°21°
0%
Tuesday
Sunny
92°/ 72° 33°/ 22°
50%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
90%
Friday
Partly Cloudy
65°/ 40° 18°/ 4°
0%
Saturday
Sunny
62°/ 38° 17°/ 3°
0%

Night: Mostly clear. Not as cool with lows in the lower 60s. South winds around 5 mph.

Chester, IL

Tonight
Clear
60°16°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
68°20°
0%
Tuesday
Sunny
92°/ 72° 33°/ 22°
40%
Wednesday
Thunderstorms
85°/ 65° 29°/ 18°
90%
Thu Night
Thunderstorms
55°13°
40%
Friday
Partly Cloudy
68°/ 40° 20°/ 4°
0%
Sat Night-Sun
Clear
35°2°
0%

Night: Mostly clear. Patchy fog after midnight. Not as cool with lows around 60. South winds around 5 mph.

Washington, MO

Tonight
Clear
65°18°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
68°20°
0%
Tuesday
Sunny
92°/ 70° 33°/ 21°
50%
Wednesday
Thunderstorms
82°/ 62° 28°/ 17°
100%
Thursday
Thunderstorms
78°/ 52° 26°/ 11°
80%
Friday
Partly Cloudy
65°/ 38° 18°/ 3°
0%
Saturday
Sunny
60°/ 35° 16°/ 2°
0%

Night: Mostly clear. Not as cool with lows in the mid 60s. South winds around 5 mph.

Farmington, MO

Tonight
Clear
58°14°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
65°18°
0%
Tuesday
Sunny
92°/ 68° 33°/ 20°
40%
Wednesday
Thunderstorms
85°/ 65° 29°/ 18°
100%
Thu Night
Thunderstorms
55°13°
50%
Friday
Rain Showers
68°/ 38° 20°/ 3°
20%
Sat Night-Sun
Clear
35°2°
0%

Night: Mostly clear. Patchy fog after midnight. Lows in the upper 50s. South winds around 5 mph.

Centralia, IL

Tonight
Cloudy
58°14°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
68°20°
0%
Tuesday
Sunny
92°/ 70° 33°/ 21°
40%
Wednesday
Thunderstorms
85°/ 65° 29°/ 18°
90%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
70%
Friday
Mostly Cloudy
68°/ 38° 20°/ 3°
0%
Saturday
Sunny
60°/ 35° 16°/ 2°
0%
Sunday
Sunny
68°20°
0%

Night: Clear this evening, then becoming partly cloudy. Lows in the upper 50s. South winds around 5 mph.

Greene County, IL

Tonight
Cloudy
62°17°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
70°21°
0%
Tuesday
Sunny
92°/ 68° 33°/ 20°
70%
Wednesday
Thunderstorms
82°/ 62° 28°/ 17°
90%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
90%
Friday
Partly Cloudy
65°/ 38° 18°/ 3°
0%
Saturday
Sunny
60°/ 35° 16°/ 2°
0%

Night: Mostly clear this evening, then becoming partly cloudy. Not as cool with lows in the lower 60s. South winds around 5 mph.

Perryville, MO

Afternoon
Sunny
85°/ 62° 29°/ 17°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
65°18°
0%
Tuesday
Sunny
92°/ 70° 33°/ 21°
30%
Wednesday
Thunderstorms
85°/ 65° 29°/ 18°
90%
Thu Night
Thunderstorms
55°13°
50%
Friday
Partly Cloudy
68°/ 42° 20°/ 6°
0%

Day: Sunny. Near steady temperature in the mid 80s. West winds around 5 mph.

Night: Mostly clear. Lows in the lower 60s. South winds around 5 mph.

Pinckneyville, IL

Afternoon
Sunny
82°/ 62° 28°/ 17°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
65°18°
0%
Tuesday
Sunny
92°/ 70° 33°/ 21°
30%
Wednesday
Thunderstorms
85°/ 62° 29°/ 17°
90%
Thursday
Thunderstorms
80°/ 55° 27°/ 13°
70%
Friday
Partly Cloudy
68°/ 40° 20°/ 4°
0%

Day: Sunny. Near steady temperature in the lower 80s. West winds around 5 mph.

Night: Clear in the evening, then becoming partly cloudy. Lows in the lower 60s. South winds around 5 mph.

Litchfield, IL

Tonight
Cloudy
58°14°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
68°20°
0%
Tuesday
Sunny
92°/ 68° 33°/ 20°
50%
Wednesday
Thunderstorms
82°/ 62° 28°/ 17°
90%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
80%
Friday
Partly Cloudy
65°/ 38° 18°/ 3°
0%
Saturday
Sunny
58°/ 35° 14°/ 2°
0%

Night: Mostly clear this evening, then becoming partly cloudy. Not as cool with lows in the upper 50s. South winds around 5 mph.

Carbondale, IL

Afternoon
Sunny
82°/ 62° 28°/ 17°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
65°18°
0%
Tuesday
Sunny
92°/ 72° 33°/ 22°
30%
Wednesday
Thunderstorms
85°/ 65° 29°/ 18°
90%
Thursday
Thunderstorms
82°/ 55° 28°/ 13°
70%
Friday
Partly Cloudy
68°/ 42° 20°/ 6°
0%

Day: Sunny. Near steady temperature in the lower 80s. West winds around 5 mph.

Night: Mostly clear. Lows in the lower 60s. South winds around 5 mph.

Cape Girardeau, MO

Afternoon
Sunny
82°/ 60° 28°/ 16°
0%
Columbus Day
Sunny
90°32°
0%
Mon Night
Clear
65°18°
0%
Tuesday
Sunny
92°/ 68° 33°/ 20°
0%
Wednesday
Thunderstorms
85°/ 65° 29°/ 18°
90%
Thursday
Thunderstorms
82°/ 55° 28°/ 13°
50%
Friday
Partly Cloudy
68°/ 42° 20°/ 6°
0%

Day: Sunny. Near steady temperature in the lower 80s. Southwest winds around 5 mph.

Night: Mostly clear. Lows around 60. South winds around 5 mph.

Marble Hill, MO

Afternoon
Sunny
85°/ 60° 29°/ 16°
0%
Columbus Day
Sunny
90°32°
0%
Mon Night
Clear
65°18°
0%
Tuesday
Sunny
92°/ 68° 33°/ 20°
0%
Wednesday
Thunderstorms
85°/ 65° 29°/ 18°
90%
Thu Night
Rain Showers
55°13°
50%
Friday
Partly Cloudy
68°/ 42° 20°/ 6°
0%

Day: Sunny. Near steady temperature in the mid 80s. Southwest winds around 5 mph.

Night: Mostly clear. Lows around 60. Southwest winds around 5 mph.

Mount Vernon, IL

Afternoon
Sunny
82°/ 60° 28°/ 16°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
65°18°
0%
Tuesday
Sunny
95°/ 68° 35°/ 20°
30%
Wednesday
Thunderstorms
85°/ 65° 29°/ 18°
90%
Thursday
Thunderstorms
80°/ 55° 27°/ 13°
70%
Friday
Mostly Cloudy
68°/ 38° 20°/ 3°
0%

Day: Sunny. Near steady temperature in the lower 80s. Northwest winds around 5 mph.

Night: Clear in the evening, then becoming partly cloudy. Lows around 60. Southwest winds around 5 mph.

Lake Spring, MO

Tonight
Cloudy
62°17°
0%
Columbus Day
Sunny
88°31°
0%
Mon Night
Clear
65°18°
0%
Tuesday
Sunny
92°/ 68° 33°/ 20°
50%
Wednesday
Thunderstorms
82°/ 62° 28°/ 17°
100%
Thursday
Thunderstorms
78°/ 52° 26°/ 11°
80%
Friday
Rain Showers
65°/ 38° 18°/ 3°
20%
Sat Night-Sun
Clear
35°2°
0%

Night: Partly cloudy. Not as cool with lows in the lower 60s. Southwest winds around 5 mph. Gusts up to 20 mph after midnight.

Northwye, MO

Tonight
Cloudy
65°18°
0%
Columbus Day
Sunny
90°32°
0%
Mon Night
Clear
68°20°
0%
Tuesday
Sunny
92°/ 70° 33°/ 21°
50%
Wednesday
Thunderstorms
82°/ 65° 28°/ 18°
100%
Thursday
Thunderstorms
78°/ 52° 26°/ 11°
80%
Friday
Partly Cloudy
65°/ 38° 18°/ 3°
0%
Sat Night-Sun
Clear
35°2°
0%

Night: Partly cloudy. Warmer with lows in the mid 60s. Southwest winds 5 to 10 mph.

West Frankfort, IL

Afternoon
Sunny
82°/ 62° 28°/ 17°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
65°18°
0%
Tuesday
Sunny
92°/ 70° 33°/ 21°
30%
Wednesday
Thunderstorms
85°/ 65° 29°/ 18°
90%
Thursday
Thunderstorms
82°/ 55° 28°/ 13°
70%
Friday
Mostly Cloudy
68°/ 40° 20°/ 4°
0%

Day: Sunny. Near steady temperature in the lower 80s. West winds around 5 mph.

Night: Clear in the evening, then becoming partly cloudy. Lows in the lower 60s. Southwest winds around 5 mph.

Mexico, MO

Tonight
Cloudy
68°20°
0%
Columbus Day
Sunny
92°33°
0%
Mon Night
Clear
72°22°
0%
Tuesday
Sunny
92°/ 68° 33°/ 20°
90%
Wednesday
Thunderstorms
78°/ 62° 26°/ 17°
100%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
90%
Friday
Sunny
62°/ 38° 17°/ 3°
0%
Sat Night
Clear
38°3°
0%
Sunday
Sunny
68°20°
0%

Night: Partly cloudy. Not as cool with lows in the upper 60s. South winds 5 to 10 mph.

Names listed above may include county names.

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