Lunn, IL Weather Forecast & Current Conditions

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Lunn Weather Map
UTC Time: 9/17/2026, 05:02
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Lunn, IL Regional Weather

Expires:202609170600;;581369
ASUS43 KLOT 170501
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 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.


ILZ003-004-008-010-011-017-018-170600-
NORTH CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLOUDY    65  62  90 CALM      30.29F TC  18           
FREEPORT*      CLOUDY    65  63  95 E5        30.29F TC  18           
DE KALB*       CLOUDY    65  65 100 E3        30.28F TC  18           
$$


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

Lunn, IL

Tonight
Thunderstorms
65°18°
90%
Thursday
Thunderstorms
75°/ 60° 24°/ 16°
70%
Friday
Thunderstorms
75°/ 65° 24°/ 18°
50%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Thunderstorms
72°/ 58° 22°/ 14°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
50%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Wednesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then showers with thunderstorms likely after midnight. Locally heavy rainfall possible after midnight. Near steady temperature in the mid 60s. East winds 5 to 10 mph. Chance of precipitation 90 percent.

Rockford, IL

Tonight
Thunderstorms
62°17°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Friday
Thunderstorms
75°/ 65° 24°/ 18°
70%
Saturday
Thunderstorms
80°/ 62° 27°/ 17°
90%
Sunday
Thunderstorms
68°/ 58° 20°/ 14°
50%
Monday
Rain Showers
68°/ 55° 20°/ 13°
50%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Wednesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A slight chance of showers in the evening, then showers likely and a chance of thunderstorms after midnight. Lows in the lower 60s. East winds 5 to 10 mph. Chance of precipitation 70 percent.

Freeport, IL

Tonight
Thunderstorms
62°17°
90%
Thursday
Thunderstorms
72°/ 58° 22°/ 14°
90%
Friday
Rain Showers
72°/ 65° 22°/ 18°
70%
Saturday
Thunderstorms
80°/ 62° 27°/ 17°
80%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Rain Showers
65°/ 55° 18°/ 13°
50%
Tuesday
Mostly Cloudy
70°21°
0%
Wednesday
Mostly Cloudy
70°21°
0%

Night: Mostly cloudy. Showers with a chance of thunderstorms. Patchy fog. Near steady temperature in the lower 60s. East winds around 5 mph. Chance of rain 90 percent.

Dixon, IL

Tonight
Thunderstorms
65°18°
100%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
80%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Thunderstorms
72°/ 58° 22°/ 14°
60%
Monday
Rain Showers
70°/ 55° 21°/ 13°
50%
Tuesday
Mostly Cloudy
70°/ 55° 21°/ 13°
0%
Wednesday
Cloudy
72°22°
0%

Night: A chance of showers and a slight chance of thunderstorms in the evening, then showers with thunderstorms likely after midnight. Locally heavy rainfall possible after midnight. Lows in the mid 60s. East winds around 5 mph. Chance of precipitation near 100 percent.

DeKalb, IL

Tonight
Thunderstorms
65°18°
90%
Thursday
Thunderstorms
75°/ 62° 24°/ 17°
70%
Friday
Thunderstorms
75°/ 65° 24°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Thunderstorms
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
68°/ 55° 20°/ 13°
50%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Wednesday
Cloudy
72°22°
0%

Night: Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then showers with thunderstorms likely after midnight. Locally heavy rainfall possible after midnight. Near steady temperature in the mid 60s. Northeast winds 5 to 10 mph. Chance of precipitation 90 percent.

Mount Carroll, IL

Tonight
Thunderstorms
65°18°
90%
Thursday
Thunderstorms
75°/ 60° 24°/ 16°
90%
Friday
Rain Showers
75°/ 65° 24°/ 18°
50%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
70°/ 58° 21°/ 14°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
50%
Tue Night
Mostly Cloudy
55°13°
0%
Wednesday
Partly Cloudy
72°22°
0%

Night: Mostly cloudy. Showers with a chance of thunderstorms. Patchy fog. Some thunderstorms may produce heavy rainfall. Locally heavy rainfall possible. Near steady temperature in the mid 60s. East winds around 5 mph. Chance of rain 90 percent.

Belvidere, IL

Tonight
Thunderstorms
62°17°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Friday
Thunderstorms
75°/ 62° 24°/ 17°
70%
Saturday
Thunderstorms
80°/ 62° 27°/ 17°
90%
Sunday
Thunderstorms
68°/ 58° 20°/ 14°
50%
Monday
Rain Showers
65°/ 55° 18°/ 13°
50%
Tuesday
Rain Showers
68°/ 55° 20°/ 13°
30%
Wednesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A slight chance of showers in the evening, then showers likely and a chance of thunderstorms after midnight. Near steady temperature in the lower 60s. East winds 5 to 10 mph in the evening, becoming light and variable. Chance of precipitation 70 percent.

Sterling, IL

Tonight
Thunderstorms
65°18°
100%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
90%
Friday
Rain Showers
78°/ 68° 26°/ 20°
50%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
60%
Monday
Rain Showers
70°/ 55° 21°/ 13°
50%
Tue Night-Wed
Cloudy
55°13°
0%

Night: A slight chance of showers and thunderstorms late this evening, then showers with a chance of thunderstorms. Patchy fog. Some thunderstorms may produce heavy rainfall. Locally heavy rainfall possible. Near steady temperature in the mid 60s. East winds around 5 mph. Chance of rain near 100 percent.

Janesville, WI

Tonight
Thunderstorms
60°16°
70%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
50%
Friday
Rain Showers
72°/ 62° 22°/ 17°
90%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
100%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
50%
Monday
Thunderstorms
65°/ 55° 18°/ 13°
50%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
30%
Wednesday
Partly Cloudy
72°22°
0%

Night: Cloudy. Chance of light showers until early morning. Slight chance of thunderstorms after midnight. Showers likely early in the morning. Lows around 60. East winds up to 10 mph. Chance of precipitation 70 percent.

Monroe, WI

Tonight
Thunderstorms
62°17°
70%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
60%
Friday
Rain Showers
72°/ 62° 22°/ 17°
90%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
90%
Sunday
Rain Showers
68°/ 55° 20°/ 13°
50%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
50%
Tuesday
Rain Showers
68°/ 52° 20°/ 11°
30%
Wednesday
Partly Cloudy
72°22°
0%

Night: Cloudy. Chance of light showers until early morning. Slight chance of thunderstorms after midnight. Showers likely early in the morning. Lows in the lower 60s. East winds up to 10 mph. Chance of precipitation 70 percent.

Crystal Lake, IL

Tonight
Thunderstorms
62°17°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Friday
Thunderstorms
75°/ 62° 24°/ 17°
70%
Saturday
Thunderstorms
80°/ 62° 27°/ 17°
90%
Sunday
Thunderstorms
68°/ 58° 20°/ 14°
50%
Monday
Rain Showers
68°/ 55° 20°/ 13°
50%
Tuesday
Rain Showers
68°/ 55° 20°/ 13°
30%
Wednesday
Cloudy
72°22°
0%

Night: Cloudy. A slight chance of showers in the evening, then a chance of showers and a slight chance of thunderstorms after midnight. Showers likely and a chance of thunderstorms late. Near steady temperature in the lower 60s. Northeast winds 5 to 10 mph in the evening, becoming light and variable. Chance of precipitation 70 percent.

Princeton, IL

Tonight
Thunderstorms
68°20°
90%
Thursday
Thunderstorms
80°/ 65° 27°/ 18°
100%
Friday
Rain Showers
78°/ 68° 26°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
75°/ 60° 24°/ 16°
60%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%
Tuesday
Partly Cloudy
72°/ 55° 22°/ 13°
0%

Night: Mostly cloudy. A slight chance of showers and thunderstorms late this evening, then showers with a chance of thunderstorms. Patchy fog. Some thunderstorms may produce heavy rainfall. Locally heavy rainfall possible. Near steady temperature in the upper 60s. East winds around 5 mph. Chance of rain 90 percent.

Aurora, IL

Tonight
Thunderstorms
65°18°
80%
Thursday
Thunderstorms
75°/ 62° 24°/ 17°
70%
Friday
Mostly Cloudy
75°/ 65° 24°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Thunderstorms
72°/ 58° 22°/ 14°
60%
Monday
Rain Showers
68°/ 58° 20°/ 14°
50%
Tuesday
Rain Showers
68°/ 55° 20°/ 13°
30%
Wednesday
Cloudy
72°22°
0%

Night: Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then showers with thunderstorms likely after midnight. Locally heavy rainfall possible after midnight. Near steady temperature in the mid 60s. Northeast winds 5 to 10 mph in the evening, becoming light and variable. Chance of precipitation 80 percent.

Ottawa, IL

Tonight
Thunderstorms
68°20°
90%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
90%
Friday
Thunderstorms
78°/ 68° 26°/ 20°
40%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Thunderstorms
75°/ 60° 24°/ 16°
60%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%
Tuesday
Mostly Cloudy
72°/ 58° 22°/ 14°
0%
Wednesday
Cloudy
75°24°
0%

Night: Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then showers with thunderstorms likely after midnight. Locally heavy rainfall possible after midnight. Lows in the upper 60s. East winds 5 to 10 mph. Chance of precipitation 90 percent.

Galena, IL

Tonight
Thunderstorms
62°17°
90%
Thursday
Thunderstorms
72°/ 58° 22°/ 14°
90%
Friday
Rain Showers
72°/ 65° 22°/ 18°
70%
Saturday
Thunderstorms
80°/ 62° 27°/ 17°
80%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
50%
Monday
Rain Showers
65°/ 55° 18°/ 13°
50%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Partly Cloudy
72°22°
0%

Night: Mostly cloudy. Showers with a chance of thunderstorms. Patchy fog. Near steady temperature in the lower 60s. East winds around 5 mph. Chance of rain 90 percent.

Whitewater, WI

Tonight
Thunderstorms
60°16°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
50%
Friday
Rain Showers
72°/ 62° 22°/ 17°
90%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
100%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
50%
Monday
Thunderstorms
65°/ 55° 18°/ 13°
50%
Tuesday
Rain Showers
65°/ 55° 18°/ 13°
30%
Wednesday
Partly Cloudy
72°22°
0%

Night: Cloudy. Slight chance of light rain showers through around midnight, then rain showers likely and slight chance of thunderstorms after midnight. Lows around 60. East winds up to 5 mph through around midnight becoming calm. Chance of precipitation 70 percent.

Darlington, WI

Tonight
Thunderstorms
62°17°
80%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
50%
Friday
Thunderstorms
72°/ 62° 22°/ 17°
90%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
90%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
60%
Monday
Thunderstorms
65°/ 55° 18°/ 13°
50%
Tuesday
Rain Showers
68°/ 52° 20°/ 11°
30%
Wednesday
Partly Cloudy
72°22°
0%

Night: Cloudy. Slight chance of sprinkles through around midnight, then showers and slight chance of thunderstorms after midnight. Lows in the lower 60s. East winds up to 5 mph. Chance of precipitation 80 percent.

Maquoketa, IA

Tonight
Thunderstorms
65°18°
90%
Thursday
Thunderstorms
75°/ 62° 24°/ 17°
90%
Friday
Rain Showers
75°/ 68° 24°/ 20°
70%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
50%
Tuesday
Rain Showers
68°/ 55° 20°/ 13°
30%
Wednesday
Partly Cloudy
72°22°
0%

Night: Mostly cloudy. Showers with a chance of thunderstorms. Patchy fog. Some thunderstorms may produce heavy rainfall. Locally heavy rainfall possible. Near steady temperature in the mid 60s. East winds around 5 mph. Chance of rain 90 percent.

Oswego, IL

Tonight
Thunderstorms
68°20°
90%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
80%
Friday
Mostly Cloudy
78°/ 65° 26°/ 18°
40%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Thunderstorms
75°/ 60° 24°/ 16°
50%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%
Tuesday
Mostly Cloudy
70°/ 58° 21°/ 14°
0%
Wednesday
Cloudy
75°24°
0%

Night: Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then showers with thunderstorms likely after midnight. Locally heavy rainfall possible after midnight. Near steady temperature in the upper 60s. Northeast winds 5 to 10 mph, becoming north after midnight. Chance of precipitation 90 percent.

Clinton, IA

Tonight
Thunderstorms
65°18°
100%
Thursday
Thunderstorms
75°/ 62° 24°/ 17°
90%
Friday
Rain Showers
75°/ 68° 24°/ 20°
70%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
60%
Monday
Rain Showers
68°/ 55° 20°/ 13°
50%
Tue Night-Wed
Cloudy
55°13°
0%

Night: A slight chance of showers and thunderstorms late this evening, then showers with a chance of thunderstorms. Patchy fog. Some thunderstorms may produce heavy rainfall. Locally heavy rainfall possible. Near steady temperature in the mid 60s. East winds around 5 mph. Chance of rain near 100 percent.

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