Plainville, IL Weather Forecast & Current Conditions

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Plainville Weather Map
UTC Time: 9/18/2026, 18:38
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Plainville, IL Regional Weather

Expires:202609181900;;666154
ASUS43 KLOT 181810
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 PM CDT FRI SEP 18 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.


ILZ025>027-034>036-040-047-049-050-058-095>099-181900-
WEST-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         MOSUNNY   81  73  76 E5        30.15F HX  86  TC  27   
GALESBURG*     CLOUDY    68  65  91 NE15      30.22S TC  20           
MACOMB*        CLOUDY    77  73  85 E7        30.19F TC  25           
JACKSONVILLE*  MOSUNNY   83  73  70 E8        30.15F HX  89  TC  29   
PITTSFIELD*    SUNNY     86  73  66 CALM      30.15F HX  93  TC  30   
$$


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

Adams, MO

Afternoon
Sunny
88°/ 72° 31°/ 22°
0%
Saturday
Mostly Cloudy
92°/ 68° 33°/ 20°
50%
Sunday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Monday
Thunderstorms
68°/ 55° 20°/ 13°
70%
Tue-Tue Night
Mostly Cloudy
65°18°
0%
Wed-Wed Night
Cloudy
68°20°
0%
Thursday
Partly Cloudy
72°22°
0%

Day: Sunny. Highs in the upper 80s. Southeast winds around 5 mph. Heat index values up to 102.

Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the lower 70s. Southeast winds around 5 mph.

Winchester, IL

Afternoon
Sunny
90°/ 72° 32°/ 22°
20%
Saturday
Mostly Cloudy
95°/ 68° 35°/ 20°
30%
Sunday
Thunderstorms
85°29°
70%
Sun Night-Mon
Thunderstorms
62°17°
70%
Mon Night
Rain Showers
55°13°
50%
Tue-Tue Night
Mostly Cloudy
68°20°
0%
Wednesday
Cloudy
72°22°
0%
Thursday
Cloudy
72°22°
0%

Day: Mostly sunny. Highs around 90. East winds around 5 mph.

Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southeast winds 5 to 10 mph. Chance of rain 20 percent.

Rushville, IL

Afternoon
Sunny
85°/ 72° 29°/ 22°
0%
Saturday
Mostly Cloudy
90°/ 68° 32°/ 20°
50%
Sunday
Thunderstorms
80°/ 60° 27°/ 16°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wednesday
Cloudy
52°11°
0%
Thursday
Cloudy
52°11°
0%

Day: Mostly sunny. Highs in the mid 80s. East winds 5 to 10 mph.

Night: Partly cloudy. Humid with lows in the lower 70s. Southeast winds 5 to 10 mph.

Jacksonville, IL

Afternoon
Sunny
88°/ 72° 31°/ 22°
0%
Saturday
Mostly Cloudy
92°/ 68° 33°/ 20°
40%
Sunday
Thunderstorms
85°29°
70%
Sun Night-Mon
Thunderstorms
62°17°
70%
Mon Night
Rain Showers
55°13°
50%
Tue-Tue Night
Mostly Cloudy
68°20°
0%
Wednesday
Cloudy
72°22°
0%
Thursday
Cloudy
72°22°
0%

Day: Mostly sunny. Highs in the upper 80s. East winds around 5 mph.

Night: Partly cloudy. Humid with lows in the lower 70s. East winds 5 to 10 mph, becoming southeast after midnight.

Audrain, MO

Afternoon
Thunderstorms
92°/ 72° 33°/ 22°
20%
Saturday
Mostly Cloudy
92°/ 68° 33°/ 20°
40%
Sunday
Thunderstorms
85°/ 62° 29°/ 17°
70%
Monday
Thunderstorms
72°/ 55° 22°/ 13°
70%
Tue-Tue Night
Mostly Cloudy
65°18°
0%
Wed-Wed Night
Cloudy
70°21°
0%
Thursday
Partly Cloudy
72°22°
0%

Day: Sunny with a slight chance of showers and thunderstorms. Near steady temperature in the lower 90s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 102.

Night: Mostly clear with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 20 percent.

Greene, IL

Afternoon
Thunderstorms
92°/ 70° 33°/ 21°
20%
Saturday
Sunny
95°/ 70° 35°/ 21°
40%
Sunday
Thunderstorms
88°31°
50%
Sun Night-Mon
Thunderstorms
62°17°
70%
Mon Night
Thunderstorms
55°13°
50%
Tue-Tue Night
Mostly Cloudy
70°21°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°24°
0%

Day: Sunny with a slight chance of showers and thunderstorms. Near steady temperature in the lower 90s. East winds around 5 mph. Chance of rain 20 percent. Heat index values up to 104.

Night: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows around 70. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 100 early in the evening.

Montgomery, MO

Afternoon
Thunderstorms
92°/ 72° 33°/ 22°
30%
Saturday
Mostly Cloudy
95°/ 70° 35°/ 21°
20%
Sunday
Thunderstorms
88°31°
40%
Sun Night-Mon
Thunderstorms
62°17°
70%
Mon Night
Thunderstorms
58°14°
50%
Tue-Tue Night
Mostly Cloudy
68°20°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°24°
0%

Day: Sunny with a chance of showers and thunderstorms. Near steady temperature in the lower 90s. South winds around 5 mph. Chance of rain 30 percent. Heat index values up to 106.

Night: Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 101 early in the evening.

Beardstown, IL

Afternoon
Sunny
88°/ 72° 31°/ 22°
0%
Saturday
Mostly Cloudy
92°/ 68° 33°/ 20°
40%
Sunday
Thunderstorms
82°28°
70%
Sun Night-Mon
Thunderstorms
60°16°
70%
Mon Night
Rain Showers
55°13°
50%
Tue-Tue Night
Mostly Cloudy
65°18°
0%
Wednesday
Cloudy
72°22°
0%
Thursday
Cloudy
72°22°
0%

Day: Mostly sunny. Highs in the upper 80s. East winds around 5 mph.

Night: Partly cloudy. Humid with lows in the lower 70s. East winds 5 to 10 mph, becoming southeast after midnight.

Canton, IL

Afternoon
Thunderstorms
82°/ 70° 28°/ 21°
20%
Saturday
Rain Showers
88°/ 68° 31°/ 20°
70%
Sunday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wednesday
Cloudy
52°11°
0%
Thursday
Cloudy
52°11°
0%

Day: Partly sunny with a slight chance of showers and thunderstorms. Not as warm with highs in the lower 80s. East winds 5 to 10 mph. Chance of rain 20 percent.

Night: Partly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows around 70. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent.

Havana, IL

Afternoon
Rain Showers
85°/ 72° 29°/ 22°
20%
Saturday
Rain Showers
90°/ 68° 32°/ 20°
50%
Sunday
Rain Showers
82°28°
70%
Sun Night-Mon
Thunderstorms
60°16°
70%
Mon Night
Rain Showers
55°13°
50%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%

Day: Partly sunny with a 20 percent chance of showers. Not as warm with highs in the mid 80s. East winds 5 to 10 mph.

Night: Partly cloudy. Lows in the lower 70s. Southeast winds 5 to 10 mph.

Warren, MO

Afternoon
Thunderstorms
95°/ 72° 35°/ 22°
30%
Saturday
Mostly Cloudy
95°/ 70° 35°/ 21°
0%
Sunday
Thunderstorms
90°32°
20%
Sun Night-Mon
Thunderstorms
65°18°
70%
Mon Night
Thunderstorms
58°14°
30%
Tue-Tue Night
Mostly Cloudy
70°21°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°24°
0%

Day: Sunny with a chance of showers and thunderstorms. Hot. Near steady temperature in the mid 90s. Light and variable winds. Chance of rain 30 percent. Heat index values up to 107.

Night: Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Light and variable winds, becoming south around 5 mph after midnight. Chance of rain 20 percent. Heat index values up to 101 early in the evening.

Callaway, MO

Afternoon
Thunderstorms
92°/ 72° 33°/ 22°
30%
Saturday
Mostly Cloudy
95°/ 70° 35°/ 21°
20%
Sunday
Thunderstorms
88°31°
50%
Sun Night-Mon
Thunderstorms
65°18°
70%
Mon Night
Rain Showers
58°14°
50%
Tue-Tue Night
Mostly Cloudy
68°20°
0%
Wednesday
Cloudy
72°22°
0%
Thursday
Cloudy
72°22°
0%

Day: Sunny with a chance of showers and thunderstorms. Hot. Near steady temperature in the lower 90s. South winds around 5 mph. Chance of rain 30 percent. Heat index values up to 105.

Night: Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 20 percent.

Boone, MO

Afternoon
Thunderstorms
92°/ 72° 33°/ 22°
20%
Saturday
Mostly Cloudy
95°/ 70° 35°/ 21°
40%
Sunday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Monday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
68°20°
0%
Wednesday
Cloudy
72°22°
0%
Thursday
Cloudy
72°22°
0%

Day: Sunny with a slight chance of showers and thunderstorms. Near steady temperature in the lower 90s. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 105.

Night: Mostly clear with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 101 early in the evening.

Springfield, IL

Afternoon
Sunny
88°/ 72° 31°/ 22°
0%
Saturday
Mostly Cloudy
92°/ 70° 33°/ 21°
30%
Sunday
Rain Showers
85°29°
50%
Sun Night-Mon
Thunderstorms
62°17°
70%
Mon Night
Rain Showers
55°13°
50%
Tuesday
Mostly Cloudy
72°22°
0%
Wednesday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%

Day: Mostly sunny. Highs in the upper 80s. East winds 5 to 10 mph.

Night: Partly cloudy. Humid with lows in the lower 70s. East winds 5 to 10 mph, becoming southeast after midnight.

Petersburg, IL

Afternoon
Sunny
85°/ 72° 29°/ 22°
0%
Saturday
Mostly Cloudy
92°/ 68° 33°/ 20°
40%
Sunday
Rain Showers
82°28°
60%
Sun Night-Mon
Thunderstorms
62°17°
70%
Mon Night
Rain Showers
55°13°
50%
Tuesday
Mostly Cloudy
68°20°
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%

Day: Mostly sunny. Highs in the mid 80s. East winds 5 to 10 mph.

Night: Partly cloudy. Lows in the lower 70s. Southeast winds 5 to 10 mph.

Saint Charles, MO

Afternoon
Thunderstorms
95°/ 72° 35°/ 22°
30%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°33°
20%
Sun Night-Mon
Thunderstorms
68°20°
70%
Mon Night
Thunderstorms
60°16°
40%
Tue-Tue Night
Mostly Cloudy
72°22°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°24°
0%

Day: Sunny with a chance of showers and thunderstorms. Hot. Near steady temperature in the mid 90s. Southeast winds around 5 mph. Chance of rain 30 percent. Heat index values up to 107.

Night: Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 102 early in the evening.

Gasconade, MO

Afternoon
Thunderstorms
95°/ 72° 35°/ 22°
30%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Rain Showers
92°33°
20%
Sun Night-Mon
Thunderstorms
65°18°
70%
Mon Night
Thunderstorms
58°14°
30%
Tuesday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Cloudy
52°11°
0%
Thursday
Cloudy
52°11°
0%

Day: Sunny with a chance of showers and thunderstorms. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph. Chance of rain 30 percent. Heat index values up to 106.

Night: Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Light and variable winds, becoming south around 5 mph after midnight. Chance of rain 20 percent.

Galesburg, IL

Afternoon
Thunderstorms
78°/ 68° 26°/ 20°
50%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
70%
Tuesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Wednesday
Partly Cloudy
68°/ 52° 20°/ 11°
0%

Day: Partly sunny with a chance of showers with a slight chance of thunderstorms. Cooler with highs in the upper 70s. East winds around 10 mph with gusts up to 20 mph. Chance of rain 40 percent.

Night: Partly cloudy in the evening, then mostly cloudy with a chance of thunderstorms with a slight chance of showers after midnight. Lows in the upper 60s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent.

Franklin, MO

Afternoon
Thunderstorms
95°/ 72° 35°/ 22°
30%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Rain Showers
92°33°
20%
Sun Night-Mon
Thunderstorms
65°18°
70%
Mon Night
Thunderstorms
58°14°
30%
Tuesday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Cloudy
52°11°
0%
Thursday
Cloudy
52°11°
0%

Day: Sunny with a chance of showers and thunderstorms. Hot. Near steady temperature in the mid 90s. Southwest winds around 5 mph. Chance of rain 30 percent. Heat index values up to 106.

Night: Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Light and variable winds, becoming south around 5 mph after midnight. Chance of rain 20 percent.

Madison, IL

Afternoon
Thunderstorms
95°/ 72° 35°/ 22°
30%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°33°
20%
Sun Night-Mon
Thunderstorms
68°20°
70%
Mon Night
Thunderstorms
60°16°
40%
Tue-Tue Night
Mostly Cloudy
72°22°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°24°
0%

Day: Sunny with a chance of showers and thunderstorms. Hot. Near steady temperature in the mid 90s. Southeast winds around 5 mph. Chance of rain 30 percent. Heat index values up to 107.

Night: Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Southeast winds around 5 mph. Chance of rain 20 percent. Heat index values up to 102 early in the evening.

Names listed above may include county names.

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