PRINCETON, IL 61356 Weather Forecast & Current Conditions

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PERU, IL
Current Weather

11:55 PM CDT JUL 20, 2025
Clear
68°F
Feels Like: 68°F
Dewpoint: 64°F
Rel. Hum.: 87%
Visibility: 10 miles
Wind: ENE at 8 mph
Pressure: 30.01 inches
Last 72 hours

Local Area Snow Depth

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PRINCETON, IL 61356
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
REST OF TONIGHT
Mostly cloudy. Lows in the mid 60s. East winds 5 to 10 mph.
MONDAY
Partly sunny. Humid with highs in the lower 80s. East winds 5 to 10 mph.
MONDAY NIGHT
Partly cloudy. Humid with lows in the upper 60s. East winds 5 to 10 mph.
TUESDAY
Mostly sunny. Humid with highs in the upper 80s. Southeast winds 5 to 10 mph.
TUESDAY NIGHT
Mostly clear. Humid with lows in the lower 70s. South winds 5 to 10 mph.
WEDNESDAY THROUGH THURSDAY
Mostly clear. Hot. Highs in the lower 90s. Lows in the lower 70s. Heat index values up to 105.
THURSDAY NIGHT
Partly cloudy. Lows in the lower 70s. Heat index values up to 100 early in the evening.
FRIDAY AND FRIDAY NIGHT
Partly cloudy. A chance of showers and thunderstorms. Hot. Highs around 90. Lows in the lower 70s. Chance of rain 40 percent. Heat index values up to 100.
SATURDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.
SATURDAY NIGHT AND SUNDAY
Partly cloudy. Lows in the lower 70s. Highs in the upper 80s.

Visible Weather Satellite
PRINCETON, IL 61356
Infrared Weather Satellite
PRINCETON, IL 61356
NEXRAD Weather Radar
PRINCETON, IL 61356

PERU, IL 3 hourly weather forecast

weather forecast created  7:00 PM CDT  7/20/2025
Monday
21 JUL 2025
PRINCETON, IL 61356 weather forecast Day 1, 0 hours 1 AM 66° 66° Partly Cloudy 13%
RAIN
<.01 in
0% Thunder
( 8% severe)
ENE   8 90% 63°
Low 63° PRINCETON, IL 61356 weather forecast Day 1, 3 hours 4 AM 64° 64° Partly Cloudy ENE   8 93% 62°
High 83° PRINCETON, IL 61356 weather forecast Day 1, 6 hours 7 AM 66° 66° Mostly Cloudy 4%

0% Thunder
( 9% severe)
ENE   8 93% 64°

Partly Cloudy



PRINCETON, IL 61356 weather forecast Day 1, 9 hours 10 AM 75° 75° Partly Cloudy E   9 79% 68°
PRINCETON, IL 61356 weather forecast Day 1, 12 hours 1 PM 80° 83° Partly Cloudy 5%

0% Thunder
( 15% severe)
ESE   10 72% 70°
PRINCETON, IL 61356 weather forecast Day 1, 15 hours 4 PM 82° 86° Partly Cloudy E   9 67% 70°
PRINCETON, IL 61356 weather forecast Day 1, 18 hours 7 PM 79° 82° Partly Cloudy 8%

0% Thunder
( 15% severe)
E   8 77% 71°
PRINCETON, IL 61356 weather forecast Day 1, 21 hours 10 PM 73° 73° Partly Cloudy E   8 87% 69°
Tuesday
22 JUL 2025
PRINCETON, IL 61356 weather forecast Day 2, 0 hours 1 AM 70° 70° Partly Cloudy 10%
RAIN
<.01 in
0% Thunder
( 18% severe)
E   7 90% 67°
Low 68° PRINCETON, IL 61356 weather forecast Day 2, 3 hours 4 AM 69° 69° Partly Cloudy E   7 90% 66°
High 86° PRINCETON, IL 61356 weather forecast Day 2, 6 hours 7 AM 70° 70° Partly Cloudy 4%

0% Thunder
( 14% severe)
ESE   8 90% 67°

Partly Cloudy



PRINCETON, IL 61356 weather forecast Day 2, 9 hours 10 AM 77° 79° Mostly Cloudy SE   9 79% 70°
PRINCETON, IL 61356 weather forecast Day 2, 12 hours 1 PM 83° 89° Partly Cloudy 4%

0% Thunder
( 18% severe)
SSE   9 72% 73°
PRINCETON, IL 61356 weather forecast Day 2, 15 hours 4 PM 85° 93° Partly Cloudy SSE   9 70% 74°
PRINCETON, IL 61356 weather forecast Day 2, 18 hours 7 PM 83° 90° Partly Cloudy 2%

0% Thunder
( 12% severe)
SSE   8 77% 75°
PRINCETON, IL 61356 weather forecast Day 2, 21 hours 10 PM 77° 78° Partly Cloudy SSE   7 90% 74°

PERU, IL extended weather forecast

BAD DAY
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Low 69° Low 73° Low 76° Low 72° Low 71°
High 89° High 95° High 93° High 89° High 91°
PRINCETON, IL 61356 weather forecast Day 3 PRINCETON, IL 61356 weather forecast Day 4 PRINCETON, IL 61356 weather forecast Day 5 PRINCETON, IL 61356 weather forecast Day 6 PRINCETON, IL 61356 weather forecast Day 7
Mostly Cloudy
15% Rain
Partly Cloudy
20% Rain
Partly Cloudy
36% Rain
Mostly Cloudy
58% Rain
Partly Cloudy
34% Rain
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