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As of 09:51 CDT

Weather in Old Princeton, IL

80°Current weather

Old Princeton, Sunday, 9 August, 09:51

Mostly clear. Feels like 80°. High 93°, low 71°.

Pressure29.97 inHg
Wind13.2 mph S
Humidity39%
Visibility6.2 mi
Dew point53°

10-day forecast for Old Princeton, IL: 61° to 101°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.

97°
Best day: Monday, August 10
80° · 1.48 in
Worst day: Thursday, August 13

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1097° / 77°0Overcast
MorningPartly cloudy79°feels 79°
AfternoonOvercast94°feels 101°
EveningPartly cloudy87°feels 90°
OvernightClear82°feels 84°
97 °Overcast

Old Princeton, Monday, 10 August

Overcast. High 97°, low 77°.

Pressure29.91 inHg
Wind12.1 mph SW
Humidity40%
Visibility6.2 mi
Dew point67°
Tue, 11101° / 72°0.21Rain
MorningLight rain75°feels 77°
AfternoonOvercast99°feels 103°
EveningClear85°feels 87°
OvernightLight rain75°feels 76°
101 °Rain

Old Princeton, Tuesday, 11 August

Rain. High 101°, low 72°.

Pressure29.85 inHg
Wind15.6 mph S
Humidity48%
Visibility6.2 mi
Dew point69°
Wed, 1295° / 71°0.11Rain
MorningOvercast75°feels 76°
AfternoonClear93°feels 97°
EveningMostly clear83°feels 89°
OvernightLight rain75°feels 76°
95 °Rain

Old Princeton, Wednesday, 12 August

Rain. High 95°, low 71°.

Pressure29.83 inHg
Wind3.8 mph N
Humidity50%
Visibility6.2 mi
Dew point68°
Thu, 1380° / 70°1.48Heavy rain
MorningRain72°feels 73°
AfternoonHeavy rain79°feels 79°
EveningHeavy rain75°feels 76°
OvernightHeavy rain73°feels 74°
80 °Heavy rain

Old Princeton, Thursday, 13 August

Heavy rain. High 80°, low 70°.

Pressure29.88 inHg
Wind15.8 mph E
Humidity78%
Visibility—
Dew point71°
Fri, 1477° / 68°0.43Rain
MorningRain69°feels 71°
AfternoonRain74°feels 76°
EveningRain75°feels 76°
OvernightRain70°feels 71°
77 °Rain

Old Princeton, Friday, 14 August

Rain. High 77°, low 68°.

Pressure30.03 inHg
Wind14.5 mph E
Humidity85%
Visibility—
Dew point69°
Sat, 1584° / 67°0.04Light rain
MorningLight rain71°feels 73°
AfternoonLight rain82°feels 87°
EveningLight rain80°feels 85°
OvernightLight rain73°feels 75°
84 °Light rain

Old Princeton, Saturday, 15 August

Light rain. High 84°, low 67°.

Pressure30.09 inHg
Wind13.2 mph SE
Humidity72%
Visibility—
Dew point70°
Sun, 1683° / 67°0Overcast
MorningOvercast75°feels 78°
AfternoonOvercast80°feels 85°
EveningOvercast75°feels 76°
OvernightOvercast68°feels 69°
83 °Overcast

Old Princeton, Sunday, 16 August

Overcast. High 83°, low 67°.

Pressure30.03 inHg
Wind14 mph NW
Humidity75%
Visibility—
Dew point71°
Mon, 1779° / 61°0Partly cloudy
MorningPartly cloudy66°feels 66°
AfternoonPartly cloudy77°feels 77°
EveningPartly cloudy72°feels 72°
OvernightPartly cloudy68°feels 68°
79 °Partly cloudy

Old Princeton, Monday, 17 August

Partly cloudy. High 79°, low 61°.

Pressure30.09 inHg
Wind8.2 mph NE
Humidity57%
Visibility—
Dew point59°
Tue, 1887° / 64°0Overcast
MorningOvercast70°feels 71°
AfternoonOvercast83°feels 87°
EveningOvercast80°feels 84°
OvernightOvercast72°feels 73°
87 °Overcast

Old Princeton, Tuesday, 18 August

Overcast. High 87°, low 64°.

Pressure29.83 inHg
Wind12.8 mph S
Humidity62%
Visibility—
Dew point67°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Old Princeton, IL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.