As of 16:36 CDT

Weather in Princeton, IL

79°

Princeton, Tuesday, 13 October, 16:36

Clear. Feels like 79°. High 80°, low 66°.

Pressure29.85 inHg

Wind4.5 mph W

Humidity61%

Visibility6.2 mi

Dew point65°

See detailed hourly forecast

Wed, 1474° / 59°

0.16

74 °

Princeton, Wednesday, 14 October

Rain. High 74°, low 59°.

Pressure30.09 inHg

Wind7.9 mph N

Humidity63%

Visibility6.2 mi

Dew point55°

Thu, 1566° / 57°

0.74

66 °

Princeton, Thursday, 15 October

Heavy rain. High 66°, low 57°.

Pressure29.97 inHg

Wind9.4 mph E

Humidity94%

Visibility1.3 mi

Dew point59°

Fri, 1658° / 46°

0.03

58 °

Princeton, Friday, 16 October

Light rain. High 58°, low 46°.

Pressure30.15 inHg

Wind22.5 mph NW

Humidity66%

Visibility6.2 mi

Dew point41°

Sat, 1756° / 36°

56 °

Princeton, Saturday, 17 October

Clear. High 56°, low 36°.

Pressure30.53 inHg

Wind3.4 mph SW

Humidity47%

Visibility6.2 mi

Dew point31°

Sun, 1862° / 44°

62 °

Princeton, Sunday, 18 October

Partly cloudy. High 62°, low 44°.

Pressure30.30 inHg

Wind13.9 mph SW

Humidity50%

Visibility—

Dew point40°

Mon, 1955° / 49°

55 °

Princeton, Monday, 19 October

Overcast. High 55°, low 49°.

Pressure30.30 inHg

Wind9.3 mph S

Humidity72%

Visibility—

Dew point46°

Tue, 2067° / 53°

67 °

Princeton, Tuesday, 20 October

Clear. High 67°, low 53°.

Pressure30.27 inHg

Wind6 mph SE

Humidity55%

Visibility—

Dew point47°

Wed, 2168° / 58°

0.06

68 °

Princeton, Wednesday, 21 October

Light rain. High 68°, low 58°.

Pressure30.12 inHg

Wind9.6 mph SE

Humidity85%

Visibility—

Dew point59°

Thu, 2274° / 61°

0.01

74 °

Princeton, Thursday, 22 October

Light rain. High 74°, low 61°.

Pressure29.91 inHg

Wind14.5 mph S

Humidity61%

Visibility—

Dew point56°

Fri, 2369° / 56°

0.28

69 °

Princeton, Friday, 23 October

Rain. High 69°, low 56°.

Pressure29.83 inHg

Wind24.6 mph S

Humidity63%

Visibility—

Dew point54°

Sat, 2465° / 49°

65 °

Princeton, Saturday, 24 October

Clear. High 65°, low 49°.

Pressure30.27 inHg

Wind7.5 mph W

Humidity43%

Visibility—

Dew point39°

Sun, 2558° / 49°

58 °

Princeton, Sunday, 25 October

Overcast. High 58°, low 49°.

Pressure30.21 inHg

Wind13.9 mph SE

Humidity60%

Visibility—

Dew point42°

Mon, 2655° / 48°

0.01

55 °

Princeton, Monday, 26 October

Light rain. High 55°, low 48°.

Pressure30.00 inHg

Wind11.8 mph NW

Humidity85%

Visibility—

Dew point50°

Tue, 2748° / 41°

48 °

Princeton, Tuesday, 27 October

Overcast. High 48°, low 41°.

Pressure30.12 inHg

Wind10.7 mph NE

Humidity62%

Visibility—

Dew point35°

Wed, 2849° / 36°

49 °

Princeton, Wednesday, 28 October

Overcast. High 49°, low 36°.

Pressure30.12 inHg

Wind9.9 mph N

Humidity52%

Visibility—

Dew point30°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Princeton, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Princeton, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.