St. James, IL Weather Forecast & Current Conditions

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St. James, IL Weather Maps

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Saint James Weather Map
UTC Time: 9/25/2026, 12:25
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

St. James, IL Regional Weather

Expires:202609251300;;031060
ASUS43 KLOT 251210
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 AM CDT FRI SEP 25 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>094-251300-
SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     NOT AVBL                                               
CAIRO*           N/A     58  58 100 CALM      30.22R VSB 1/4 TC  14   
EFFINGHAM*     PTCLDY    59  57  94 CALM      30.28R TC  15           
MARION         FOG       55  55 100 N6        30.24R VSB 1/4 TC  13   
MT. VERNON     CLOUDY    59  58  96 CALM      30.25R TC  15           
CENTRALIA*     CLOUDY    58  57  97 CALM      30.26R FOG     TC  15   
SALEM*         CLOUDY    62  62  99 MISG      30.26R TC  17           
METROPOLIS*    CLEAR     56  55  98 CALM      30.23R FOG     TC  13   
$$


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

Saint James, IL

Today
Mostly Cloudy
72°/ 58° 22°/ 14°
0%
Saturday
Partly Cloudy
72°/ 58° 22°/ 14°
0%
Sunday
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Mon-Mon Night
Clear
78°26°
0%
Tuesday
Rain Showers
78°/ 62° 26°/ 17°
60%
Wednesday
Thunderstorms
78°/ 62° 26°/ 17°
50%

Day: Mostly cloudy. Highs in the lower 70s. Northeast winds around 5 mph.

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Effingham, IL

Today
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Saturday
Sunny
72°/ 55° 22°/ 13°
0%
Sunday
Sunny
75°24°
0%
Sun Night
Clear
52°11°
0%
Mon Night
Clear
52°11°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
50%
Wednesday
Rain Showers
78°/ 62° 26°/ 17°
50%
Thursday
Rain Showers
78°26°
50%

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

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Centralia, IL

Today
Mostly Cloudy
75°/ 58° 24°/ 14°
0%
Saturday
Mostly Cloudy
72°/ 58° 22°/ 14°
0%
Sunday
Partly Cloudy
75°24°
0%
Sun Night
Clear
55°13°
0%
Mon Night
Clear
55°13°
0%
Tuesday
Sunny
82°/ 65° 28°/ 18°
50%
Wednesday
Thunderstorms
78°/ 65° 26°/ 18°
60%
Thursday
Thunderstorms
80°27°
50%

Day: Mostly cloudy this morning, then becoming partly sunny. Areas of fog this morning. Highs in the mid 70s. Northeast winds around 5 mph.

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Flora, IL

Today
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Saturday
Sunny
72°/ 55° 22°/ 13°
0%
Sunday
Partly Cloudy
75°24°
0%
Sun Night
Clear
52°11°
0%
Mon Night
Clear
52°11°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
50%
Wednesday
Rain Showers
78°/ 65° 26°/ 18°
50%

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

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Shelbyville, IL

Today
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Sunny
72°/ 55° 22°/ 13°
0%
Sunday
Partly Cloudy
75°24°
0%
Sun Night
Clear
55°13°
0%
Mon Night
Clear
55°13°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
60%
Wednesday
Rain Showers
78°/ 62° 26°/ 17°
50%
Thursday
Rain Showers
78°26°
50%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.

Litchfield, IL

Today
Mostly Cloudy
72°/ 58° 22°/ 14°
0%
Saturday
Partly Cloudy
72°/ 58° 22°/ 14°
0%
Sunday
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Mon-Mon Night
Clear
78°26°
0%
Tuesday
Rain Showers
78°/ 62° 26°/ 17°
60%
Wednesday
Thunderstorms
78°/ 62° 26°/ 17°
50%

Day: Mostly cloudy. Highs in the lower 70s. Northeast winds around 5 mph.

Night: Mostly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.

Greenup, IL

Today
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Sunny
72°/ 55° 22°/ 13°
0%
Sunday
Sunny
75°24°
0%
Sun Night
Clear
52°11°
0%
Mon Night
Clear
52°11°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
50%
Wednesday
Rain Showers
78°/ 62° 26°/ 17°
50%

Day: Partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Newton, IL

Today
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Saturday
Sunny
75°/ 55° 24°/ 13°
0%
Sunday
Sunny
75°24°
0%
Sun Night
Clear
52°11°
0%
Mon Night
Clear
52°11°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
50%
Wednesday
Rain Showers
78°/ 65° 26°/ 18°
50%

Day: Partly sunny. Highs in the mid 70s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.

Fairfield, IL

Today
Sunny
75°/ 55° 24°/ 13°
0%
Saturday
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Sunday
Sunny
75°24°
0%
Sun Night
Clear
52°11°
0%
Mon Night
Clear
52°11°
0%
Tuesday
Sunny
82°/ 62° 28°/ 17°
50%
Wednesday
Rain Showers
80°/ 65° 27°/ 18°
50%

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

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

Taylorville, IL

Today
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Sunday
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Mon-Mon Night
Clear
78°26°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
60%
Wednesday
Rain Showers
78°/ 62° 26°/ 17°
50%
Thursday
Rain Showers
78°26°
50%

Day: Mostly cloudy. Highs in the lower 70s. Northeast winds around 5 mph.

Night: Mostly cloudy. Lows in the mid 50s. East winds around 5 mph.

Olney, IL

Today
Partly Cloudy
75°/ 55° 24°/ 13°
0%
Saturday
Sunny
75°/ 55° 24°/ 13°
0%
Sunday
Sunny
75°24°
0%
Sun Night
Clear
52°11°
0%
Mon Night
Clear
52°11°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
50%
Wednesday
Rain Showers
78°/ 65° 26°/ 18°
50%
Thursday
Rain Showers
82°28°
40%

Day: Partly sunny. Highs in the mid 70s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Mount Vernon, IL

Today
Partly Cloudy
75°/ 58° 24°/ 14°
0%
Saturday
Partly Cloudy
75°/ 58° 24°/ 14°
0%
Sunday
Partly Cloudy
78°26°
0%
Sun Night
Clear
55°13°
0%
Mon Night
Clear
55°13°
0%
Tuesday
Sunny
82°/ 65° 28°/ 18°
50%
Wednesday
Rain Showers
80°/ 65° 27°/ 18°
60%

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

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

Sullivan, IL

Today
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Sunny
72°/ 55° 22°/ 13°
0%
Sunday
Sunny
75°24°
0%
Sun Night
Clear
52°11°
0%
Mon Night
Clear
52°11°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
60%
Wednesday
Rain Showers
75°/ 62° 24°/ 17°
50%
Thursday
Rain Showers
78°26°
50%

Day: Mostly cloudy this morning, then becoming partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. A chance of sprinkles in the evening. Lows in the mid 50s. Northeast winds 5 to 10 mph.

Charleston, IL

Today
Partly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Sunny
72°/ 52° 22°/ 11°
0%
Sunday
Sunny
75°24°
0%
Sun Night
Clear
52°11°
0%
Mon Night
Clear
52°11°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
50%
Wednesday
Rain Showers
78°/ 62° 26°/ 17°
50%
Thursday
Rain Showers
80°27°
50%

Day: Partly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. A chance of sprinkles in the evening. Lows in the mid 50s. Northeast winds 5 to 10 mph.

Alton, IL

Today
Mostly Cloudy
75°/ 60° 24°/ 16°
0%
Saturday
Rain Showers
72°/ 60° 22°/ 16°
20%
Sunday
Mostly Cloudy
75°/ 58° 24°/ 14°
0%
Monday
Sunny
78°/ 62° 26°/ 17°
0%
Tuesday
Rain Showers
80°/ 65° 27°/ 18°
60%
Wed Night
Rain Showers
65°18°
50%
Thursday
Thunderstorms
80°27°
50%

Day: Patchy fog this morning. Mostly cloudy. Highs in the mid 70s. East winds around 5 mph.

Night: Mostly cloudy. Lows around 60. Northeast winds around 5 mph.

Greene County, IL

Today
Mostly Cloudy
72°/ 58° 22°/ 14°
0%
Saturday
Rain Showers
72°/ 58° 22°/ 14°
20%
Sunday
Mostly Cloudy
75°/ 58° 24°/ 14°
0%
Monday
Sunny
78°/ 58° 26°/ 14°
0%
Tuesday
Rain Showers
78°/ 65° 26°/ 18°
60%
Wed Night-Thu
Rain Showers
62°17°
50%

Day: Mostly cloudy. Highs in the lower 70s. East winds around 5 mph.

Night: Mostly cloudy. Lows in the upper 50s. East winds around 5 mph.

Robinson, IL

Today
Sunny
72°/ 55° 22°/ 13°
0%
Saturday
Sunny
75°/ 52° 24°/ 11°
0%
Sunday
Sunny
75°24°
0%
Sun Night
Clear
52°11°
0%
Mon Night
Clear
52°11°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
50%
Wednesday
Rain Showers
78°/ 65° 26°/ 18°
50%

Day: Mostly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.

Marshall, IL

Today
Sunny
72°/ 52° 22°/ 11°
0%
Saturday
Sunny
72°/ 52° 22°/ 11°
0%
Sunday
Sunny
75°24°
0%
Sun Night
Clear
52°11°
0%
Mon Night
Clear
52°11°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
50%
Wednesday
Rain Showers
78°/ 62° 26°/ 17°
50%
Thursday
Rain Showers
80°27°
40%

Day: Mostly sunny. Highs in the lower 70s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. Lows in the lower 50s. Northeast winds 5 to 10 mph.

Albion, IL

Today
Sunny
75°/ 55° 24°/ 13°
0%
Saturday
Sunny
75°/ 55° 24°/ 13°
0%
Sunday
Sunny
75°24°
0%
Sun Night
Clear
52°11°
0%
Mon Night
Clear
52°11°
0%
Tuesday
Sunny
80°/ 65° 27°/ 18°
40%
Wednesday
Rain Showers
80°/ 65° 27°/ 18°
50%
Thursday
Rain Showers
82°28°
40%

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

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

Decatur, IL

Today
Sprinkles
72°/ 55° 22°/ 13°
0%
Saturday
Sunny
72°/ 55° 22°/ 13°
0%
Sunday
Partly Cloudy
72°22°
0%
Sun Night
Clear
55°13°
0%
Mon Night
Clear
55°13°
0%
Tuesday
Sunny
78°/ 62° 26°/ 17°
60%
Wednesday
Rain Showers
75°/ 62° 24°/ 17°
50%
Thursday
Rain Showers
78°26°
50%

Day: Mostly cloudy. A chance of sprinkles this afternoon. Highs in the lower 70s. East winds 5 to 10 mph.

Night: Mostly cloudy. A chance of sprinkles in the evening. Lows in the mid 50s. Northeast winds around 5 mph.

Names listed above may include county names.

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