Grigg, IL Weather Forecast & Current Conditions

Feedback E-mail the Weather

Quick Clicks

Weather World

Grigg, IL Weather Maps

°F °C°F °C
Grigg Weather Map
UTC Time: 10/26/2026, 12:47
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Grigg, IL Regional Weather

Expires:202610261300;;213225
ASUS43 KLOT 261210
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 AM CDT MON OCT 26 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>102-261300-
SOUTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          CLEAR     52  48  87 CALM      30.35S TC  11           
BELLEVILLE     MOCLDY    51  50  97 CALM      30.34R TC  11           
CAHOKIA*       MOCLDY    50  49  96 CALM      30.35R TC  10           
SPARTA*        MOCLDY    50  50  99 CALM      30.37S TC  10           
$$


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

Grigg, IL

Today
Partly Cloudy
78°/ 48° 26°/ 9°
0%
Tuesday
Mostly Cloudy
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Fri-Fri Night
Mostly Cloudy
80°27°
0%
Saturday
Rain Showers
75°/ 55° 24°/ 13°
50%

Day: Partly sunny. Highs in the upper 70s. South winds around 5 mph.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s. South winds around 5 mph in the evening, becoming light and variable.

Alton, IL

Today
Sunny
78°/ 52° 26°/ 11°
0%
Tuesday
Mostly Cloudy
75°/ 52° 24°/ 11°
0%
Wednesday
Sunny
78°/ 55° 26°/ 13°
0%
Thu Night
Mostly Cloudy
55°13°
0%
Fri-Fri Night
Mostly Cloudy
80°27°
0%
Saturday
Rain Showers
75°/ 58° 24°/ 14°
50%

Day: Mostly sunny. Highs in the upper 70s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows in the lower 50s. South winds around 5 mph.

Monroe County, IL

Today
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Mostly Cloudy
75°/ 52° 24°/ 11°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
80°27°
0%
Saturday
Rain Showers
75°/ 55° 24°/ 13°
50%

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

Night: Partly cloudy. Lows in the upper 40s. South winds around 5 mph.

Centralia, IL

Today
Sunny
78°/ 48° 26°/ 9°
0%
Tuesday
Mostly Cloudy
75°/ 50° 24°/ 10°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
80°27°
0%
Saturday
Rain Showers
75°/ 55° 24°/ 13°
50%

Day: Mostly sunny. Highs in the upper 70s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows in the upper 40s. South winds around 5 mph in the evening, becoming light and variable.

Pinckneyville, IL

Overnight
Mostly Cloudy
48°9°
0%
Monday
Mostly Cloudy
78°/ 48° 26°/ 9°
0%
Tuesday
Mostly Cloudy
78°/ 48° 26°/ 9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Friday
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
78°/ 55° 26°/ 13°
50%

Night: Mostly cloudy. Lows in the upper 40s. Calm winds.

Litchfield, IL

Today
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Mostly Cloudy
75°/ 50° 24°/ 10°
0%
Wednesday
Sunny
75°/ 52° 24°/ 11°
0%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Friday
Partly Cloudy
78°/ 55° 26°/ 13°
20%
Sat Night-Sun
Rain Showers
55°13°
50%

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

Night: Partly cloudy. Lows in the upper 40s. South winds around 5 mph in the evening, becoming light and variable.

Perryville, MO

Overnight
Mostly Cloudy
52°11°
0%
Monday
Mostly Cloudy
78°/ 45° 26°/ 7°
0%
Tuesday
Mostly Cloudy
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
78°/ 50° 26°/ 10°
0%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Friday
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
78°/ 55° 26°/ 13°
50%

Night: Mostly cloudy. Near steady temperature in the lower 50s. Southwest winds around 5 mph.

Jefferson County, MO

Today
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Mostly Cloudy
75°/ 52° 24°/ 11°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri-Fri Night
Mostly Cloudy
80°27°
0%
Saturday
Rain Showers
75°/ 55° 24°/ 13°
50%

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

Night: Partly cloudy. Lows in the upper 40s. South winds around 5 mph.

Carbondale, IL

Overnight
Mostly Cloudy
52°11°
0%
Monday
Mostly Cloudy
78°/ 48° 26°/ 9°
0%
Tuesday
Partly Cloudy
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
80°/ 52° 27°/ 11°
0%
Friday
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
78°/ 55° 26°/ 13°
50%

Night: Mostly cloudy. Near steady temperature in the lower 50s. Calm winds.

Alton, MO

Today
Sunny
78°/ 52° 26°/ 11°
0%
Tuesday
Mostly Cloudy
75°/ 52° 24°/ 11°
0%
Wednesday
Sunny
78°/ 55° 26°/ 13°
0%
Thu Night
Mostly Cloudy
55°13°
0%
Fri-Fri Night
Mostly Cloudy
80°27°
0%
Saturday
Rain Showers
75°/ 58° 24°/ 14°
50%

Day: Mostly sunny. Highs in the upper 70s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows in the lower 50s. South winds around 5 mph.

Farmington, MO

Today
Sunny
75°/ 45° 24°/ 7°
0%
Tuesday
Mostly Cloudy
72°/ 48° 22°/ 9°
0%
Wednesday
Sunny
78°/ 48° 26°/ 9°
0%
Thursday
Sunny
80°/ 52° 27°/ 11°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Sat-Sat Night
Rain Showers
75°24°
50%
Sunday
Rain Showers
75°24°
40%

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

Night: Partly cloudy. Lows in the mid 40s. South winds around 5 mph in the evening, becoming light and variable.

Washington, MO

Today
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Mostly Cloudy
75°/ 52° 24°/ 11°
0%
Wednesday
Sunny
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
0%
Fri Night
Rain Showers
55°13°
20%
Saturday
Rain Showers
72°/ 55° 22°/ 13°
50%

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

Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. South winds around 5 mph.

Cape Girardeau, MO

Overnight
Mostly Cloudy
50°10°
0%
Monday
Mostly Cloudy
75°/ 45° 24°/ 7°
0%
Tuesday
Mostly Cloudy
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
78°/ 48° 26°/ 9°
0%
Thursday
Sunny
78°/ 52° 26°/ 11°
0%
Friday
Mostly Cloudy
75°24°
0%
Saturday
Mostly Cloudy
75°/ 55° 24°/ 13°
50%

Night: Mostly cloudy. Near steady temperature around 50. Calm winds.

Mount Vernon, IL

Overnight
Mostly Cloudy
48°9°
0%
Monday
Mostly Cloudy
78°/ 45° 26°/ 7°
0%
Tuesday
Mostly Cloudy
78°/ 48° 26°/ 9°
0%
Wednesday
Sunny
78°/ 50° 26°/ 10°
0%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Friday
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
78°/ 55° 26°/ 13°
50%

Night: Mostly cloudy. Near steady temperature in the upper 40s. Calm winds.

West Frankfort, IL

Overnight
Mostly Cloudy
48°9°
0%
Monday
Mostly Cloudy
78°/ 45° 26°/ 7°
0%
Tuesday
Mostly Cloudy
78°/ 48° 26°/ 9°
0%
Wednesday
Sunny
78°/ 50° 26°/ 10°
0%
Thursday
Sunny
82°/ 52° 28°/ 11°
0%
Friday
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
78°/ 55° 26°/ 13°
50%

Night: Mostly cloudy. Near steady temperature in the upper 40s. Calm winds.

Marble Hill, MO

Overnight
Mostly Cloudy
48°9°
0%
Monday
Mostly Cloudy
75°/ 45° 24°/ 7°
0%
Tuesday
Mostly Cloudy
75°/ 45° 24°/ 7°
0%
Wednesday
Sunny
78°/ 48° 26°/ 9°
0%
Thursday
Sunny
80°/ 50° 27°/ 10°
0%
Friday
Mostly Cloudy
75°24°
0%
Saturday
Mostly Cloudy
75°/ 55° 24°/ 13°
50%

Night: Mostly cloudy. Lows in the upper 40s. Calm winds.

Herrin, IL

Overnight
Mostly Cloudy
48°9°
0%
Monday
Mostly Cloudy
78°/ 48° 26°/ 9°
0%
Tuesday
Partly Cloudy
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
78°/ 50° 26°/ 10°
0%
Thursday
Sunny
78°/ 52° 26°/ 11°
0%
Friday
Mostly Cloudy
78°26°
0%
Saturday
Mostly Cloudy
78°/ 58° 26°/ 14°
50%
Sunday
Rain Showers
75°24°
50%

Night: Mostly cloudy. Near steady temperature in the upper 40s. Calm winds.

Jonesboro, IL

Overnight
Mostly Cloudy
48°9°
0%
Monday
Mostly Cloudy
75°/ 48° 24°/ 9°
0%
Tuesday
Partly Cloudy
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
75°/ 50° 24°/ 10°
0%
Thursday
Sunny
78°/ 52° 26°/ 11°
0%
Friday
Mostly Cloudy
75°24°
0%
Saturday
Mostly Cloudy
75°/ 58° 24°/ 14°
50%
Sunday
Rain Showers
75°24°
50%

Night: Mostly cloudy. Lows in the upper 40s. Calm winds.

Greene County, IL

Today
Partly Cloudy
75°/ 50° 24°/ 10°
0%
Tuesday
Mostly Cloudy
75°/ 52° 24°/ 11°
0%
Wednesday
Partly Cloudy
78°/ 52° 26°/ 11°
0%
Thursday
Sunny
82°/ 55° 28°/ 13°
20%
Friday
Partly Cloudy
78°/ 55° 26°/ 13°
20%
Saturday
Rain Showers
75°/ 55° 24°/ 13°
50%

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

Night: Partly cloudy. Lows around 50. South winds around 5 mph.

Piedmont, MO

Overnight
Mostly Cloudy
45°7°
0%
Monday
Mostly Cloudy
75°/ 42° 24°/ 6°
0%
Tuesday
Mostly Cloudy
75°/ 45° 24°/ 7°
0%
Wednesday
Sunny
78°/ 45° 26°/ 7°
0%
Thursday
Sunny
80°/ 48° 27°/ 9°
0%
Fri-Fri Night
Mostly Cloudy
78°26°
0%
Saturday
Rain Showers
75°/ 52° 24°/ 11°
50%
Sunday
Rain Showers
75°24°
40%

Night: Mostly cloudy. Lows in the mid 40s. Calm winds.

Names listed above may include county names.

Trending Headlines

Trending Entertainment Headlines

Grigg Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Grigg Quick Facts

National Two Day Weather Forecast


E-mail the Grigg Weather Forecast

Voice your opinion or tell us about page issues...