Princeton, IL Weather Forecast & Current Conditions

Feedback E-mail the Weather

Quick Clicks

Weather World

Princeton, IL Weather Maps

°F °C°F °C
Princeton Weather Map
UTC Time: 9/16/2026, 18:06
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Princeton, IL Regional Weather

Expires:202609161900;;555966
ASUS43 KLOT 161803
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 PM CDT WED SEP 16 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.


ILZ003-004-008-010-011-017-018-161900-
NORTH CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLOUDY    71  61  70 NE6       30.33S TC  22           
6HR MIN TEMP:  64; 6HR MAX TEMP:  72;                                

FREEPORT*      CLOUDY    67  66  95 NE5       30.35S TC  20           
DE KALB*       CLOUDY    74  63  69 E7        30.32S TC  23           
$$


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

Princeton, IL

Today
Rain Showers
70°/ 65° 21°/ 18°
50%
Thursday
Thunderstorms
82°/ 65° 28°/ 18°
50%
Friday
Rain Showers
80°/ 68° 27°/ 20°
60%
Sat-Sat Night
Thunderstorms
85°29°
70%
Sunday
Rain Showers
75°/ 62° 24°/ 17°
50%
Monday
Rain Showers
75°/ 58° 24°/ 14°
50%
Tuesday
Rain Showers
75°24°
40%

Day: Cloudy with a 40 percent chance of showers. Not as warm. Near steady temperature around 70. East winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 50 percent.

Hennepin, IL

Today
Rain Showers
72°/ 68° 22°/ 20°
50%
Thursday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Friday
Rain Showers
82°/ 68° 28°/ 20°
50%
Sat-Sat Night
Thunderstorms
85°29°
70%
Sunday
Rain Showers
78°/ 62° 26°/ 17°
60%
Monday
Rain Showers
75°/ 58° 24°/ 14°
50%
Tuesday
Rain Showers
75°24°
40%

Day: Cloudy with a 40 percent chance of showers. Not as warm. Near steady temperature in the lower 70s. Northeast winds around 5 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the upper 60s. East winds around 5 mph. Chance of rain 50 percent.

Sterling, IL

Today
Rain Showers
68°/ 65° 20°/ 18°
90%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
70%
Friday
Rain Showers
78°/ 65° 26°/ 18°
70%
Sat-Sat Night
Thunderstorms
82°28°
70%
Sunday
Rain Showers
75°/ 58° 24°/ 14°
50%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%

Day: Cloudy with a 40 percent chance of showers. Not as warm. Near steady temperature in the upper 60s. East winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then showers with a chance of thunderstorms after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 90 percent.

Geneseo, IL

Today
Rain Showers
68°/ 65° 20°/ 18°
70%
Thursday
Thunderstorms
80°/ 65° 27°/ 18°
70%
Friday
Rain Showers
82°/ 68° 28°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
75°/ 62° 24°/ 17°
60%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%

Day: Cloudy with a 40 percent chance of showers. Not as warm. Near steady temperature in the upper 60s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 70 percent.

Moline, IL

Today
Rain Showers
72°/ 65° 22°/ 18°
70%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
70%
Friday
Rain Showers
82°/ 68° 28°/ 20°
70%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
75°/ 62° 24°/ 17°
60%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%

Day: Cloudy. A chance of showers late this morning, then a slight chance of showers this afternoon. Not as warm with highs in the lower 70s. Northeast winds 5 to 10 mph. Chance of rain 40 percent.

Night: Mostly cloudy. A slight chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 70 percent.

Mount Carroll, IL

Today
Rain Showers
65°/ 62° 18°/ 17°
80%
Thursday
Rain Showers
78°/ 62° 26°/ 17°
70%
Friday
Rain Showers
78°/ 65° 26°/ 18°
90%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%

Day: Cloudy with a 20 percent chance of showers. Not as warm. Near steady temperature in the mid 60s. East winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then showers with a chance of thunderstorms after midnight. Humid with lows in the lower 60s. East winds 5 to 10 mph. Chance of rain 80 percent.

Davenport, IA

Today
Rain Showers
68°/ 65° 20°/ 18°
90%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
70%
Friday
Rain Showers
80°/ 68° 27°/ 20°
70%
Saturday
Rain Showers
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
75°/ 60° 24°/ 16°
50%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%
Tuesday
Partly Cloudy
72°22°
0%

Day: Cloudy with a 20 percent chance of showers. Not as warm. Near steady temperature in the upper 60s. East winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then showers with a chance of thunderstorms after midnight. Locally heavy rainfall possible after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 90 percent.

Clinton, IA

Today
Rain Showers
68°/ 65° 20°/ 18°
90%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
70%
Friday
Rain Showers
78°/ 65° 26°/ 18°
80%
Saturday
Rain Showers
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
75°/ 58° 24°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%
Tuesday
Rain Showers
75°24°
30%

Day: Cloudy with a 20 percent chance of showers. Not as warm with highs in the upper 60s. East winds around 5 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then showers with a chance of thunderstorms after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 90 percent.

Aledo, IL

Today
Rain Showers
72°/ 65° 22°/ 18°
50%
Thursday
Thunderstorms
80°/ 65° 27°/ 18°
50%
Friday
Rain Showers
82°/ 68° 28°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
60%
Sunday
Rain Showers
75°/ 62° 24°/ 17°
60%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%

Day: Cloudy with a 40 percent chance of showers. Not as warm with highs in the lower 70s. East winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 50 percent.

Freeport, IL

Today
Rain Showers
68°/ 62° 20°/ 17°
70%
Thursday
Rain Showers
78°/ 58° 26°/ 14°
50%
Friday
Rain Showers
75°/ 62° 24°/ 17°
90%
Sat Night
Thunderstorms
60°16°
50%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%

Day: Mostly cloudy with a 20 percent chance of showers. Near steady temperature in the upper 60s. East winds 5 to 10 mph.

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

Monmouth, IL

Today
Thunderstorms
75°/ 68° 24°/ 20°
50%
Thursday
Thunderstorms
82°/ 65° 28°/ 18°
50%
Friday
Rain Showers
82°/ 68° 28°/ 20°
40%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
78°/ 62° 26°/ 17°
70%
Monday
Rain Showers
75°/ 58° 24°/ 14°
50%

Day: A slight chance of thunderstorms late this morning. Cloudy with a chance of showers. Not as warm with highs in the mid 70s. East winds around 5 mph. Chance of rain 50 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the upper 60s. East winds around 5 mph. Chance of rain 50 percent.

Maquoketa, IA

Today
Rain Showers
68°/ 62° 20°/ 17°
70%
Thursday
Rain Showers
78°/ 62° 26°/ 17°
50%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
90%
Sat Night
Thunderstorms
62°17°
50%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%

Day: Cloudy with a 20 percent chance of showers. Highs in the upper 60s. East winds around 5 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. East winds around 5 mph in the evening, becoming light and variable. Chance of rain 70 percent.

Muscatine, IA

Today
Rain Showers
68°/ 65° 20°/ 18°
70%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
70%
Friday
Rain Showers
82°/ 68° 28°/ 20°
70%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
75°/ 60° 24°/ 16°
60%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%

Day: Cloudy with a 20 percent chance of showers. Not as warm. Near steady temperature in the upper 60s. Northeast winds around 5 mph.

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Humid with lows in the mid 60s. East winds around 5 mph in the evening, becoming light and variable. Chance of rain 70 percent.

Galena, IL

Today
Rain Showers
65°/ 62° 18°/ 17°
70%
Thursday
Rain Showers
78°/ 62° 26°/ 17°
50%
Friday
Rain Showers
75°/ 65° 24°/ 18°
90%
Sat Night
Thunderstorms
60°16°
50%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%

Day: Cloudy with a 20 percent chance of showers. Near steady temperature in the mid 60s. East winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the lower 60s. East winds around 5 mph. Chance of rain 70 percent.

Macomb, IL

Today
Thunderstorms
78°/ 68° 26°/ 20°
50%
Thursday
Rain Showers
82°/ 68° 28°/ 20°
50%
Friday
Rain Showers
85°/ 68° 29°/ 20°
40%
Saturday
Rain Showers
88°/ 65° 31°/ 18°
70%
Sunday
Rain Showers
78°/ 62° 26°/ 17°
50%
Monday
Rain Showers
75°/ 58° 24°/ 14°
50%
Tuesday
Sunny
75°24°
0%

Day: A slight chance of thunderstorms late this morning. Cloudy with a chance of showers. Not as warm with highs in the upper 70s. East winds around 5 mph. Chance of rain 50 percent.

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

Tipton, IA

Today
Rain Showers
68°/ 65° 20°/ 18°
90%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
80°/ 68° 27°/ 20°
80%
Saturday
Rain Showers
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
75°/ 58° 24°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%

Day: Cloudy with a 20 percent chance of showers. Highs in the upper 60s. East winds around 5 mph.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers with a chance of thunderstorms after midnight. Locally heavy rainfall possible after midnight. Humid with lows in the mid 60s. East winds around 5 mph in the evening, becoming light and variable. Chance of rain 90 percent.

Oquawka, IL

Today
Thunderstorms
75°/ 68° 24°/ 20°
50%
Thursday
Thunderstorms
82°/ 68° 28°/ 20°
50%
Friday
Rain Showers
85°/ 68° 29°/ 20°
40%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
78°/ 62° 26°/ 17°
70%
Monday
Rain Showers
75°/ 58° 24°/ 14°
50%
Tuesday
Sunny
75°24°
0%

Day: A slight chance of thunderstorms late this morning. Cloudy with a chance of showers. Patchy fog. Not as warm with highs in the mid 70s. East winds around 5 mph. Chance of rain 50 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the upper 60s. East winds around 5 mph. Chance of rain 50 percent.

Wapello, IA

Today
Rain Showers
72°/ 65° 22°/ 18°
50%
Thursday
Thunderstorms
80°/ 65° 27°/ 18°
50%
Friday
Rain Showers
82°/ 68° 28°/ 20°
50%
Sat-Sat Night
Thunderstorms
85°29°
70%
Sunday
Rain Showers
75°/ 62° 24°/ 17°
70%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%
Tuesday
Rain Showers
75°24°
30%

Day: Cloudy. A slight chance of showers late this morning, then a chance of showers this afternoon. Not as warm with highs in the lower 70s. Northeast winds 5 to 10 mph. Chance of rain 40 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 50 percent.

Anamosa, IA

Today
Rain Showers
68°/ 62° 20°/ 17°
70%
Thursday
Rain Showers
78°/ 62° 26°/ 17°
50%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
90%
Saturday
Thunderstorms
82°/ 62° 28°/ 17°
70%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
50%
Tuesday
Sunny
72°22°
0%

Day: Cloudy with a 20 percent chance of showers. Highs in the upper 60s. East winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. East winds around 5 mph in the evening, becoming light and variable. Chance of rain 70 percent.

Burlington, IA

Today
Rain Showers
75°/ 65° 24°/ 18°
50%
Thursday
Thunderstorms
82°/ 68° 28°/ 20°
60%
Friday
Rain Showers
85°/ 68° 29°/ 20°
50%
Saturday
Rain Showers
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
78°/ 62° 26°/ 17°
70%
Monday
Rain Showers
72°/ 58° 22°/ 14°
50%
Tuesday
Sunny
75°24°
0%

Day: Cloudy with a 50 percent chance of showers. Patchy fog. Not as warm with highs in the mid 70s. Northeast winds around 5 mph.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the mid 60s. East winds around 5 mph. Chance of rain 50 percent.

Trending Headlines

Trending Entertainment Headlines

Princeton Radar Loop

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

Princeton Quick Facts

National Two Day Weather Forecast


E-mail the Princeton Weather Forecast

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