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Clay School, IL Weather Forecast & Current Conditions

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Clay School, IL Weather Maps

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Clay School Weather Map
UTC Time: 10/5/2026, 14:20
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Clay School, IL Regional Weather

Expires:202610051500;;575497
ASUS43 KLOT 051410
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 AM CDT MON OCT 05 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>102-051500-
SOUTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          SUNNY     57  45  62 NE6       30.30R TC  14           
BELLEVILLE     SUNNY     60  48  63 NE3       30.27R TC  16           
CAHOKIA*       SUNNY     58  50  75 NE3       30.29R TC  14           
SPARTA*        SUNNY     57  47  69 NE6       30.29S TC  14           
$$


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

Clay School, IL

Today
Sunny
78°/ 50° 26°/ 10°
0%
Tuesday
Sunny
80°/ 55° 27°/ 13°
0%
Wednesday
Sunny
85°/ 58° 29°/ 14°
0%
Thursday
Clear
85°29°
0%
Friday
Clear
85°29°
0%
Saturday
Clear
85°29°
0%
Sunday
Clear
85°29°
0%

Day: Sunny. Highs in the upper 70s. Northeast winds around 5 mph.

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

Alton, IL

Today
Sunny
78°/ 50° 26°/ 10°
0%
Tuesday
Sunny
80°/ 55° 27°/ 13°
0%
Wednesday
Sunny
85°/ 58° 29°/ 14°
0%
Thursday
Clear
85°29°
0%
Friday
Clear
85°29°
0%
Saturday
Clear
85°29°
0%
Sunday
Clear
85°29°
0%

Day: Sunny. Highs in the upper 70s. Northeast winds around 5 mph.

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

Alton, MO

Today
Sunny
78°/ 50° 26°/ 10°
0%
Tuesday
Sunny
80°/ 55° 27°/ 13°
0%
Wednesday
Sunny
85°/ 58° 29°/ 14°
0%
Thursday
Clear
85°29°
0%
Friday
Clear
85°29°
0%
Saturday
Clear
85°29°
0%
Sunday
Clear
85°29°
0%

Day: Sunny. Highs in the upper 70s. Northeast winds around 5 mph.

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

Centralia, IL

Today
Sunny
78°/ 48° 26°/ 9°
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Sunny
85°/ 55° 29°/ 13°
0%
Thursday
Clear
85°29°
0%
Friday
Clear
85°29°
0%
Sat Night
Clear
85°29°
0%
Sunday
Rain Showers
85°29°
20%

Day: Sunny. Highs in the upper 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the upper 40s. Northeast winds around 5 mph in the evening, becoming light and variable.

Litchfield, IL

Today
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Sunny
85°/ 55° 29°/ 13°
0%
Thursday
Clear
55°13°
0%
Friday
Clear
55°13°
0%
Saturday
Clear
55°13°
0%
Sunday
Clear
55°13°
0%

Day: Sunny. Highs in the mid 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the upper 40s. Northeast winds around 5 mph in the evening, becoming light and variable.

Monroe County, IL

Today
Sunny
78°/ 48° 26°/ 9°
0%
Tuesday
Sunny
80°/ 55° 27°/ 13°
0%
Wednesday
Sunny
85°/ 58° 29°/ 14°
0%
Thursday
Clear
85°29°
0%
Friday
Clear
85°29°
0%
Sat Night
Clear
85°29°
0%
Sunday
Sunny
85°29°
0%

Day: Sunny. Highs in the upper 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the upper 40s. Northeast winds around 5 mph in the evening, becoming light and variable.

Greene County, IL

Today
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Sunny
78°/ 55° 26°/ 13°
0%
Wednesday
Sunny
85°/ 55° 29°/ 13°
0%
Thursday
Clear
55°13°
0%
Friday
Clear
55°13°
0%
Saturday
Clear
55°/ 60° 13°/ 16°
0%

Day: Sunny. Highs in the mid 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the upper 40s. East winds around 5 mph.

Jefferson County, MO

Today
Sunny
78°/ 48° 26°/ 9°
0%
Tuesday
Sunny
80°/ 55° 27°/ 13°
0%
Wednesday
Sunny
85°/ 58° 29°/ 14°
0%
Thursday
Clear
85°29°
0%
Friday
Clear
85°29°
0%
Sat Night
Clear
85°29°
0%
Sunday
Sunny
85°29°
0%

Day: Sunny. Highs in the upper 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the upper 40s. Northeast winds around 5 mph in the evening, becoming light and variable.

Chester, IL

Today
Sunny
78°/ 48° 26°/ 9°
0%
Tuesday
Sunny
78°/ 55° 26°/ 13°
0%
Wednesday
Sunny
85°/ 58° 29°/ 14°
0%
Thu Night
Clear
58°14°
0%
Friday
Clear
58°14°
0%
Sat Night
Clear
58°14°
0%
Sunday
Sunny
85°29°
0%

Day: Sunny. Highs in the upper 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the upper 40s. Northeast winds around 5 mph in the evening, becoming light and variable.

Pinckneyville, IL

Today
Sunny
78°/ 48° 26°/ 9°
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Sunny
85°/ 55° 29°/ 13°
0%
Thu Night
Clear
55°13°
0%
Friday
Clear
55°13°
0%
Sat Night
Clear
55°13°
0%
Sunday
Sunny
85°29°
0%

Day: Sunny. Highs in the upper 70s. Northeast winds 5 to 10 mph.

Night: Clear. Lows in the upper 40s. Northeast winds around 5 mph in the evening, becoming light and variable.

Washington, MO

Today
Sunny
75°/ 50° 24°/ 10°
0%
Tuesday
Sunny
82°/ 55° 28°/ 13°
0%
Wednesday
Sunny
85°/ 55° 29°/ 13°
0%
Thu Night
Clear
55°13°
0%
Friday
Clear
55°13°
0%
Saturday
Clear
55°/ 60° 13°/ 16°
20%
Sunday
Sunny
85°29°
0%

Day: Sunny. Highs in the mid 70s. Northeast winds around 5 mph.

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

Mount Vernon, IL

Today
Sunny
78°/ 48° 26°/ 9°
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Sunny
85°/ 55° 29°/ 13°
0%
Thu Night
Clear
55°13°
0%
Friday
Clear
55°13°
0%
Sat Night
Clear
55°13°
0%
Sunday
Sunny
85°29°
0%

Day: Sunny. Highs in the upper 70s. Northeast winds 5 to 10 mph.

Night: Clear. Lows in the upper 40s. Northeast winds around 5 mph in the evening, becoming light and variable.

Farmington, MO

Today
Sunny
78°/ 48° 26°/ 9°
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Sunny
85°/ 55° 29°/ 13°
0%
Thu Night
Clear
55°13°
0%
Friday
Clear
55°13°
0%
Sat Night
Clear
55°13°
0%
Sunday
Rain Showers
82°28°
20%

Day: Sunny. Highs in the upper 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the upper 40s. Northeast winds around 5 mph in the evening, becoming light and variable.

Carbondale, IL

Today
Sunny
78°/ 48° 26°/ 9°
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Sunny
85°/ 55° 29°/ 13°
0%
Thu Night
Clear
55°13°
0%
Friday
Clear
82°28°
0%
Sat Night
Clear
82°28°
0%
Sunday
Sunny
82°28°
0%

Day: Sunny. Highs in the upper 70s. Northeast winds 5 to 10 mph.

Night: Clear. Lows in the upper 40s. Northeast winds around 5 mph in the evening, becoming light and variable.

Taylorville, IL

Today
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Sunny
78°/ 55° 26°/ 13°
0%
Wednesday
Sunny
85°/ 55° 29°/ 13°
0%
Thursday
Clear
55°13°
0%
Friday
Clear
55°13°
0%
Saturday
Clear
55°/ 58° 13°/ 14°
0%

Day: Sunny. Highs in the mid 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the upper 40s. East winds around 5 mph.

Perryville, MO

Today
Sunny
78°/ 48° 26°/ 9°
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Sunny
85°/ 58° 29°/ 14°
0%
Thu Night
Clear
55°13°
0%
Friday
Clear
55°13°
0%
Sat Night
Clear
55°13°
0%
Sunday
Sunny
82°28°
0%

Day: Sunny. Highs in the upper 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the upper 40s. Northeast winds around 5 mph in the evening, becoming light and variable.

Springfield, IL

Today
Sunny
75°/ 50° 24°/ 10°
0%
Tuesday
Sunny
78°/ 58° 26°/ 14°
0%
Wednesday
Sunny
82°/ 55° 28°/ 13°
0%
Thu Night
Clear
55°13°
0%
Friday
Sunny
78°/ 55° 26°/ 13°
0%
Sat Night-Sun
Clear
60°16°
0%

Day: Sunny. Highs in the mid 70s. Northeast winds around 5 mph.

Night: Clear. Lows around 50. East winds around 5 mph.

Shelbyville, IL

Today
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Sunny
85°/ 52° 29°/ 11°
0%
Thursday
Clear
52°11°
0%
Friday
Clear
52°11°
0%
Saturday
Clear
52°/ 58° 11°/ 14°
0%

Day: Sunny. Highs in the mid 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the upper 40s. East winds around 5 mph.

Jacksonville, IL

Today
Sunny
75°/ 50° 24°/ 10°
0%
Tuesday
Sunny
78°/ 55° 26°/ 13°
0%
Wednesday
Sunny
82°/ 52° 28°/ 11°
0%
Thu Night
Clear
52°11°
0%
Friday
Sunny
78°/ 55° 26°/ 13°
0%
Sat Night-Sun
Clear
60°16°
0%

Day: Sunny. Highs in the mid 70s. Northeast winds around 5 mph.

Night: Clear. Lows around 50. Light and variable winds, becoming southeast around 5 mph after midnight.

Winchester, IL

Today
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Sunny
78°/ 55° 26°/ 13°
0%
Wednesday
Sunny
82°/ 55° 28°/ 13°
0%
Thu Night
Clear
55°13°
0%
Friday
Sunny
80°/ 55° 27°/ 13°
0%
Sat Night-Sun
Clear
60°16°
0%

Day: Sunny. Highs in the mid 70s. Northeast winds around 5 mph.

Night: Clear. Lows in the upper 40s. Light and variable winds, becoming southeast around 5 mph after midnight.

Names listed above may include county names.

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