Colusa, IL Weather Forecast & Current Conditions

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Colusa Weather Map
UTC Time: 9/17/2026, 16:51
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Colusa, IL Regional Weather

Expires:202609171700;;608004
ASUS43 KLOT 171610
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CDT THU SEP 17 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>099-171700-
WEST-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         PTSUNNY   85  72  65 W9        30.22R HX  91  TC  29   
GALESBURG*     PTSUNNY   77  74  91 SE3       30.23F TC  25           
MACOMB*        SUNNY     82  76  83 CALM      30.24S HX  89  TC  28   
JACKSONVILLE*  SUNNY     91  72  54 SW7       30.21F HX  97  TC  33   
PITTSFIELD*    SUNNY     92  72  52 SW8       30.23S HX  99  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

Colusa, IL

Today
Partly Cloudy
85°/ 68° 29°/ 20°
0%
Friday
Rain Showers
85°/ 72° 29°/ 22°
40%
Saturday
Partly Cloudy
88°/ 68° 31°/ 20°
70%
Sunday
Thunderstorms
78°/ 62° 26°/ 17°
70%
Monday
Rain Showers
70°/ 58° 21°/ 14°
70%
Tuesday
Mostly Cloudy
70°/ 55° 21°/ 13°
0%

Day: Partly sunny. Highs in the mid 80s. East winds around 5 mph, becoming west this afternoon.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Humid with lows in the upper 60s. Northeast winds around 5 mph.

Oquawka, IL

Today
Thunderstorms
82°/ 68° 28°/ 20°
20%
Friday
Rain Showers
82°/ 70° 28°/ 21°
50%
Saturday
Mostly Cloudy
85°/ 68° 29°/ 20°
70%
Sunday
Thunderstorms
75°/ 60° 24°/ 16°
70%
Monday
Rain Showers
68°/ 58° 20°/ 14°
70%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%

Day: Mostly cloudy early this morning, then becoming partly sunny. A slight chance of showers and thunderstorms early this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 80s. East winds around 5 mph, becoming west this afternoon. Chance of rain 20 percent.

Night: Mostly cloudy. Humid with lows in the upper 60s. Northeast winds around 5 mph.

Fort Madison, IA

Today
Partly Cloudy
82°/ 68° 28°/ 20°
20%
Friday
Thunderstorms
85°/ 70° 29°/ 21°
40%
Saturday
Mostly Cloudy
88°/ 68° 31°/ 20°
70%
Sunday
Thunderstorms
75°/ 62° 24°/ 17°
70%
Monday
Rain Showers
68°/ 58° 20°/ 14°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Patchy fog early this morning. Partly sunny. Highs in the lower 80s. East winds around 5 mph, becoming northwest this afternoon.

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

Macomb, IL

Today
Thunderstorms
85°/ 68° 29°/ 20°
20%
Friday
Rain Showers
85°/ 68° 29°/ 20°
40%
Saturday
Partly Cloudy
88°/ 68° 31°/ 20°
70%
Sunday
Thunderstorms
78°/ 60° 26°/ 16°
70%
Monday
Rain Showers
68°/ 58° 20°/ 14°
70%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%

Day: Partly sunny. A slight chance of showers and thunderstorms early this morning. Highs in the mid 80s. East winds around 5 mph, becoming west around 5 mph this afternoon. Chance of rain 20 percent.

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

Burlington, IA

Today
Thunderstorms
82°/ 68° 28°/ 20°
20%
Friday
Rain Showers
82°/ 68° 28°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sun Night
Thunderstorms
60°16°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Patchy fog early this morning. Mostly cloudy with a slight chance of showers and thunderstorms early this morning, then partly sunny this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 80s. East winds around 5 mph, becoming north this afternoon. Chance of rain 20 percent.

Night: Mostly cloudy. Humid with lows in the upper 60s. Northeast winds around 5 mph.

Kahoka, MO

Today
Partly Cloudy
85°/ 68° 29°/ 20°
0%
Friday
Thunderstorms
88°/ 72° 31°/ 22°
40%
Saturday
Partly Cloudy
88°/ 68° 31°/ 20°
60%
Sunday
Thunderstorms
75°/ 62° 24°/ 17°
70%
Monday
Rain Showers
68°/ 58° 20°/ 14°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Patchy fog early this morning. Partly sunny. Highs in the mid 80s. North winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Humid with lows in the upper 60s. Northeast winds around 5 mph.

Mount Pleasant, IA

Today
Thunderstorms
82°/ 65° 28°/ 18°
20%
Friday
Thunderstorms
82°/ 68° 28°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sun Night
Thunderstorms
58°14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A slight chance of showers and thunderstorms early this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 80s. Southeast winds around 5 mph, becoming north around 5 mph this afternoon. Chance of rain 20 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds around 5 mph.

Monmouth, IL

Today
Thunderstorms
82°/ 65° 28°/ 18°
50%
Friday
Rain Showers
82°/ 68° 28°/ 20°
50%
Saturday
Partly Cloudy
85°/ 65° 29°/ 18°
70%
Sunday
Thunderstorms
75°/ 60° 24°/ 16°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
60%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%

Day: Patchy fog early this morning. Mostly cloudy with a chance of showers with a slight chance of thunderstorms early this morning, then partly sunny this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 80s. East winds around 5 mph, becoming west this afternoon. Chance of rain 50 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds around 5 mph.

Keosauqua, IA

Today
Partly Cloudy
82°/ 68° 28°/ 20°
20%
Friday
Thunderstorms
82°/ 70° 28°/ 21°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
60%
Sun Night
Thunderstorms
60°16°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Patchy dense fog early this morning. Partly sunny. Highs in the lower 80s. Northeast winds around 5 mph, becoming north this afternoon.

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

Wapello, IA

Today
Thunderstorms
80°/ 65° 27°/ 18°
20%
Friday
Rain Showers
82°/ 68° 28°/ 20°
70%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sun Night
Thunderstorms
58°14°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
60%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A slight chance of showers and thunderstorms early this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs around 80. Southeast winds around 5 mph, becoming northeast around 5 mph this afternoon. Chance of rain 20 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds around 5 mph.

Aledo, IL

Today
Thunderstorms
82°/ 65° 28°/ 18°
50%
Friday
Rain Showers
80°/ 68° 27°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sun Night
Thunderstorms
58°14°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
60%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A chance of showers with a slight chance of thunderstorms early this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 80s. Southeast winds around 5 mph, becoming northwest this afternoon. Chance of rain 50 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds 5 to 10 mph.

Fairfield, IA

Today
Mostly Cloudy
80°/ 65° 27°/ 18°
20%
Friday
Thunderstorms
82°/ 68° 28°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
60%
Sun Night
Thunderstorms
58°14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Areas of dense fog early this morning. Mostly cloudy. Highs around 80. Southeast winds around 5 mph, becoming north around 5 mph this afternoon.

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. Northeast winds around 5 mph. Chance of rain 20 percent.

Memphis, MO

Today
Partly Cloudy
82°/ 68° 28°/ 20°
0%
Friday
Thunderstorms
85°/ 70° 29°/ 21°
40%
Saturday
Mostly Cloudy
85°/ 65° 29°/ 18°
60%
Sun Night
Thunderstorms
60°16°
70%
Monday
Rain Showers
68°/ 55° 20°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Patchy fog early this morning. Partly sunny. Highs in the lower 80s. North winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly cloudy. Humid with lows in the upper 60s. Northeast winds around 5 mph.

Washington, IA

Today
Thunderstorms
78°/ 65° 26°/ 18°
20%
Friday
Thunderstorms
80°/ 68° 27°/ 20°
50%
Saturday
Rain Showers
82°/ 65° 28°/ 18°
60%
Sun Night
Thunderstorms
58°14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A slight chance of showers and thunderstorms early this morning. Areas of fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs in the upper 70s. Southeast winds around 5 mph, becoming north this afternoon. Chance of rain 20 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds 5 to 10 mph.

Muscatine, IA

Today
Thunderstorms
78°/ 65° 26°/ 18°
30%
Friday
Rain Showers
78°/ 68° 26°/ 20°
70%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
60%
Sun Night
Thunderstorms
58°14°
60%
Monday
Rain Showers
65°/ 55° 18°/ 13°
50%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A chance of showers with a slight chance of thunderstorms early this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs in the upper 70s. Southeast winds around 5 mph, becoming north around 5 mph this afternoon. Chance of rain 30 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds around 5 mph.

Moline, IL

Today
Thunderstorms
78°/ 65° 26°/ 18°
40%
Friday
Rain Showers
78°/ 68° 26°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sun-Sun Night
Thunderstorms
72°22°
60%
Monday
Rain Showers
65°/ 55° 18°/ 13°
60%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A chance of showers with a slight chance of thunderstorms early this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs in the upper 70s. Southeast winds around 5 mph, becoming north this afternoon. Chance of rain 40 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds 5 to 10 mph.

Geneseo, IL

Today
Thunderstorms
80°/ 65° 27°/ 18°
50%
Friday
Rain Showers
78°/ 68° 26°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sun Night
Thunderstorms
58°14°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
60%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A chance of showers with a slight chance of thunderstorms early this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs around 80. Southeast winds around 5 mph, becoming northwest this afternoon. Chance of rain 50 percent.

Night: Mostly cloudy. A slight chance of showers after midnight. Humid with lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Sigourney, IA

Today
Thunderstorms
78°/ 65° 26°/ 18°
20%
Friday
Thunderstorms
80°/ 68° 27°/ 20°
70%
Saturday
Rain Showers
82°/ 62° 28°/ 17°
60%
Sun Night
Thunderstorms
58°14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
70%
Tue Night-Wed
Cloudy
52°11°
0%

Day: Mostly cloudy. A slight chance of showers and thunderstorms early this morning. Areas of dense fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs in the upper 70s. East winds around 5 mph, becoming north around 5 mph this afternoon. Chance of rain 20 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds around 5 mph.

Iowa City, IA

Today
Thunderstorms
78°/ 65° 26°/ 18°
20%
Friday
Rain Showers
78°/ 68° 26°/ 20°
70%
Saturday
Rain Showers
82°/ 65° 28°/ 18°
60%
Sunday
Rain Showers
65°/ 58° 18°/ 14°
60%
Monday
Rain Showers
65°/ 55° 18°/ 13°
60%
Tue Night-Wed
Cloudy
55°13°
0%

Day: Mostly cloudy. A slight chance of showers and thunderstorms early this morning. Areas of fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs in the upper 70s. East winds around 5 mph, becoming north around 5 mph this afternoon. Chance of rain 20 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds 5 to 10 mph.

Davenport, IA

Today
Thunderstorms
78°/ 65° 26°/ 18°
40%
Friday
Rain Showers
78°/ 68° 26°/ 20°
70%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
70°/ 58° 21°/ 14°
60%
Monday
Rain Showers
65°/ 55° 18°/ 13°
60%
Tue Night-Wed
Cloudy
52°11°
0%

Day: Mostly cloudy. A chance of showers with a slight chance of thunderstorms early this morning. Patchy fog early this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs in the upper 70s. East winds around 5 mph, becoming north this afternoon. Chance of rain 40 percent.

Night: Mostly cloudy. Humid with lows in the mid 60s. Northeast winds around 5 mph.

Names listed above may include county names.

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