Smithton School, IL Weather Forecast & Current Conditions

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Smithton School Weather Map
UTC Time: 9/20/2026, 23:04
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Smithton School, IL Regional Weather

Expires:202609210000;;787675
ASUS43 KLOT 202301
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 PM CDT SUN SEP 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.


ILZ079-100>102-210000-
SOUTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          SUNNY     90  66  45 NW3       29.85F HX  92  TC  32   
CAHOKIA*       MOSUNNY   91  64  40 NW5       29.83S HX  92  TC  33   
$$


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

Smithton School, IL

Tonight
Thunderstorms
68°20°
70%
Monday
Thunderstorms
75°/ 62° 24°/ 17°
40%
Tuesday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Sunny
75°/ 55° 24°/ 13°
0%
Fri Night-Sat
Rain Showers
58°14°
20%
Sat Night
Mostly Cloudy
58°14°
0%
Sunday
Sunny
85°29°
0%

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Lows in the upper 60s. North winds 5 to 10 mph. Chance of rain 70 percent.

Monroe County, IL

Tonight
Thunderstorms
68°20°
60%
Monday
Thunderstorms
78°/ 60° 26°/ 16°
40%
Tuesday
Mostly Cloudy
75°/ 55° 24°/ 13°
0%
Wednesday
Cloudy
75°24°
0%
Thu Night
Cloudy
75°24°
0%
Friday
Partly Cloudy
78°/ 55° 26°/ 13°
20%
Sat Night
Mostly Cloudy
55°13°
0%
Sunday
Sunny
82°28°
0%

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Lows in the upper 60s. North winds around 5 mph. Chance of rain 60 percent.

Chester, IL

Tonight
Thunderstorms
68°20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
40%
Tuesday
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Wednesday
Sunny
75°/ 52° 24°/ 11°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°/ 55° 24°/ 13°
20%
Sat Night
Rain Showers
55°13°
20%
Sunday
Sunny
82°28°
0%

Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. North winds around 5 mph. Chance of rain 50 percent.

Centralia, IL

Tonight
Thunderstorms
68°20°
70%
Monday
Thunderstorms
78°/ 60° 26°/ 16°
40%
Tuesday
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°/ 55° 24°/ 13°
20%
Sat Night-Sun
Cloudy
55°13°
0%

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Lows in the upper 60s. North winds around 5 mph. Chance of rain 70 percent.

Alton, IL

Tonight
Thunderstorms
68°20°
70%
Monday
Thunderstorms
75°/ 62° 24°/ 17°
40%
Tuesday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Sunny
75°/ 55° 24°/ 13°
0%
Fri Night-Sat
Rain Showers
58°14°
20%
Sat Night
Mostly Cloudy
58°14°
0%
Sunday
Sunny
85°29°
0%

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Lows in the upper 60s. North winds 5 to 10 mph. Chance of rain 70 percent.

Alton, MO

Tonight
Thunderstorms
68°20°
70%
Monday
Thunderstorms
75°/ 62° 24°/ 17°
40%
Tuesday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Sunny
75°/ 55° 24°/ 13°
0%
Fri Night-Sat
Rain Showers
58°14°
20%
Sat Night
Mostly Cloudy
58°14°
0%
Sunday
Sunny
85°29°
0%

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Lows in the upper 60s. North winds 5 to 10 mph. Chance of rain 70 percent.

Jefferson County, MO

Tonight
Thunderstorms
68°20°
60%
Monday
Thunderstorms
78°/ 60° 26°/ 16°
40%
Tuesday
Mostly Cloudy
75°/ 55° 24°/ 13°
0%
Wednesday
Cloudy
75°24°
0%
Thu Night
Cloudy
75°24°
0%
Friday
Partly Cloudy
78°/ 55° 26°/ 13°
20%
Sat Night
Mostly Cloudy
55°13°
0%
Sunday
Sunny
82°28°
0%

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Lows in the upper 60s. North winds around 5 mph. Chance of rain 60 percent.

Chester, MO

Tonight
Thunderstorms
68°20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
40%
Tuesday
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Wednesday
Sunny
75°/ 52° 24°/ 11°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°/ 55° 24°/ 13°
20%
Sat Night
Rain Showers
55°13°
20%
Sunday
Sunny
82°28°
0%

Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. North winds around 5 mph. Chance of rain 50 percent.

Pinckneyville, IL

Afternoon
Sunny
95°/ 68° 35°/ 20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
50%
Tuesday
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Wed-Wed Night
Clear
75°24°
0%
Thursday
Cloudy
78°26°
0%
Friday
Cloudy
78°/ 55° 26°/ 13°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. West winds 5 to 10 mph.

Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. North winds around 5 mph. Chance of rain 50 percent.

Litchfield, IL

Tonight
Thunderstorms
65°18°
70%
Monday
Thunderstorms
72°/ 58° 22°/ 14°
40%
Tuesday
Partly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Cloudy
75°24°
0%
Thu Night
Cloudy
75°24°
0%
Friday
Partly Cloudy
75°/ 55° 24°/ 13°
20%
Sat-Sat Night
Mostly Cloudy
78°26°
0%
Sunday
Sunny
82°28°
0%

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Lows in the mid 60s. North winds 5 to 10 mph. Chance of rain 70 percent.

Farmington, MO

Tonight
Thunderstorms
68°20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
50%
Tuesday
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Wednesday
Sunny
75°/ 52° 24°/ 11°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°/ 55° 24°/ 13°
20%
Sat Night
Rain Showers
55°13°
20%
Sunday
Sunny
82°28°
0%

Night: Mostly cloudy. A slight chance of showers and thunderstorms this evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Northwest winds around 5 mph, becoming north after midnight. Chance of rain 50 percent.

Perryville, MO

Afternoon
Sunny
95°/ 68° 35°/ 20°
50%
Monday
Thunderstorms
85°/ 62° 29°/ 17°
50%
Tuesday
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Wed Night
Clear
52°11°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°/ 55° 24°/ 13°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. West winds around 5 mph, becoming north around 5 mph after midnight. Chance of rain 50 percent.

Carbondale, IL

Afternoon
Sunny
95°/ 68° 35°/ 20°
20%
Monday
Rain Showers
85°/ 62° 29°/ 17°
40%
Tuesday
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Wed Night
Clear
55°13°
0%
Thursday
Cloudy
78°26°
0%
Friday
Cloudy
78°/ 55° 26°/ 13°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Northwest winds around 5 mph, becoming north after midnight. Chance of rain 20 percent.

Washington, MO

Tonight
Thunderstorms
65°18°
70%
Monday
Thunderstorms
75°/ 60° 24°/ 16°
40%
Tuesday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Sunny
72°/ 52° 22°/ 11°
0%
Thursday
Sunny
75°/ 52° 24°/ 11°
0%
Fri Night
Rain Showers
55°13°
20%
Sat Night
Rain Showers
55°13°
20%
Sunday
Rain Showers
82°28°
20%

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Lows in the mid 60s. North winds around 5 mph. Chance of rain 70 percent.

Greene County, IL

Tonight
Thunderstorms
62°17°
50%
Monday
Thunderstorms
68°/ 58° 20°/ 14°
40%
Tuesday
Partly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Sunny
72°/ 52° 22°/ 11°
0%
Thu Night-Fri
Mostly Cloudy
52°11°
0%
Fri Night-Sat
Rain Showers
55°13°
20%
Sat Night-Sun
Mostly Cloudy
55°13°
0%

Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. North winds 5 to 10 mph. Chance of rain 50 percent.

Mount Vernon, IL

Afternoon
Sunny
95°/ 68° 35°/ 20°
50%
Monday
Thunderstorms
82°/ 62° 28°/ 17°
50%
Tuesday
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Wed Night
Cloudy
55°13°
0%
Thursday
Cloudy
78°26°
0%
Friday
Cloudy
78°/ 55° 26°/ 13°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. West winds 5 to 10 mph.

Night: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. North winds around 5 mph. Chance of rain 50 percent.

Montgomery County, MO

Tonight
Thunderstorms
65°18°
60%
Monday
Thunderstorms
70°/ 58° 21°/ 14°
40%
Tuesday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Wed-Wed Night
Clear
72°22°
0%
Thursday
Sunny
72°/ 55° 22°/ 13°
0%
Fri Night
Rain Showers
58°14°
20%
Sat Night
Rain Showers
58°14°
20%
Sunday
Rain Showers
82°28°
20%

Night: Cloudy with a chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. Patchy fog after midnight. Lows in the mid 60s. North winds around 5 mph. Chance of rain 60 percent.

West Frankfort, IL

Afternoon
Sunny
95°/ 68° 35°/ 20°
30%
Monday
Rain Showers
85°/ 62° 29°/ 17°
40%
Tuesday
Sunny
78°/ 58° 26°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Cloudy
78°26°
0%
Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
80°27°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. West winds 5 to 10 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. North winds around 5 mph. Chance of rain 30 percent.

Cape Girardeau, MO

Afternoon
Sunny
95°/ 68° 35°/ 20°
20%
Monday
Rain Showers
85°/ 62° 29°/ 17°
40%
Tuesday
Sunny
78°/ 55° 26°/ 13°
0%
Wed Night
Clear
55°13°
0%
Thursday
Cloudy
78°26°
0%
Friday
Cloudy
78°/ 55° 26°/ 13°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Southwest winds around 5 mph, becoming north after midnight. Chance of rain 20 percent.

Herrin, IL

Afternoon
Sunny
95°/ 68° 35°/ 20°
20%
Monday
Mostly Cloudy
88°/ 62° 31°/ 17°
0%
Tuesday
Partly Cloudy
78°/ 58° 26°/ 14°
0%
Wed Night
Clear
55°13°
0%
Thursday
Cloudy
78°26°
0%
Fri Night
Cloudy
78°26°
0%
Saturday
Partly Cloudy
78°26°
0%

Day: Mostly sunny. Hot. Near steady temperature in the mid 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. West winds around 5 mph, becoming north after midnight. Chance of rain 20 percent.

Names listed above may include county names.

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