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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°

Two-week outlook for Old Princeton, IL: week one averages a high of 89.4° and week two 85.1°, so week two runs 4.3° cooler than week one. Around 2.3 inches of precipitation are expected over the 14 days, across 4 wet days. The nearest weekend, August 9: 93°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)89.4°70.8°2.3 in / 4 d—
2nd (August 16 – August 22)85.1°64.5°0.0 in / 0 d—

Weekend weather

Sun, August 9
Mostly clear
93°71°
no precip.
Sat, August 15
Light rain
84°67°
0.04 in
Sun, August 16
Overcast
83°67°
no precip.
Sat, August 22
Light rain
90°68°
no precip.
Mon, 1097° / 77°0Overcast
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
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
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
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
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
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
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
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
87 °Overcast

Old Princeton, Tuesday, 18 August

Overcast. High 87°, low 64°.

Pressure29.83 inHg
Wind12.8 mph S
Humidity62%
Visibility—
Dew point67°
Wed, 1984° / 67°0Partly cloudy
84 °Partly cloudy

Old Princeton, Wednesday, 19 August

Partly cloudy. High 84°, low 67°.

Pressure29.85 inHg
Wind14.3 mph NW
Humidity50%
Visibility—
Dew point62°
Thu, 2082° / 61°0Clear
82 °Clear

Old Princeton, Thursday, 20 August

Clear. High 82°, low 61°.

Pressure29.97 inHg
Wind5.7 mph N
Humidity55%
Visibility—
Dew point60°
Fri, 2190° / 64°0Overcast
90 °Overcast

Old Princeton, Friday, 21 August

Overcast. High 90°, low 64°.

Pressure29.80 inHg
Wind15.5 mph S
Humidity52%
Visibility—
Dew point62°
Sat, 2290° / 68°0.01Light rain
90 °Light rain

Old Princeton, Saturday, 22 August

Light rain. High 90°, low 68°.

Pressure29.83 inHg
Wind15.5 mph N
Humidity43%
Visibility—
Dew point62°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Old Princeton, IL, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.