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As of 16:15 CDT

Weather in Princeton, IL

64°Current weather

Princeton, Thursday, 15 October, 16:15

Rain. Feels like 65°. High 66°, low 58°.

Pressure29.83 inHg
Wind8.9 mph SW
Humidity91%
Visibility6.2 mi
Dew point62°
Fri, 1655° / 45°0.02Light rain
55 °Light rain

Princeton, Friday, 16 October

Light rain. High 55°, low 45°.

Pressure30.15 inHg
Wind15.8 mph NW
Humidity66%
Visibility6.2 mi
Dew point41°
Sat, 1756° / 35°0Clear
56 °Clear

Princeton, Saturday, 17 October

Clear. High 56°, low 35°.

Pressure30.56 inHg
Wind3.5 mph SW
Humidity46%
Visibility6.2 mi
Dew point29°
Sun, 1862° / 41°0Clear
62 °Clear

Princeton, Sunday, 18 October

Clear. High 62°, low 41°.

Pressure30.47 inHg
Wind12.3 mph S
Humidity49%
Visibility6.2 mi
Dew point39°
Mon, 1964° / 42°0Partly cloudy
64 °Partly cloudy

Princeton, Monday, 19 October

Partly cloudy. High 64°, low 42°.

Pressure30.36 inHg
Wind6.5 mph S
Humidity51%
Visibility6.2 mi
Dew point41°
Tue, 2067° / 43°0Clear
67 °Clear

Princeton, Tuesday, 20 October

Clear. High 67°, low 43°.

Pressure30.33 inHg
Wind5.1 mph SE
Humidity45%
Visibility—
Dew point41°
Wed, 2167° / 46°0Mostly clear
67 °Mostly clear

Princeton, Wednesday, 21 October

Mostly clear. High 67°, low 46°.

Pressure30.33 inHg
Wind6.4 mph SE
Humidity50%
Visibility—
Dew point43°
Thu, 2271° / 53°0Partly cloudy
71 °Partly cloudy

Princeton, Thursday, 22 October

Partly cloudy. High 71°, low 53°.

Pressure30.24 inHg
Wind10.3 mph S
Humidity39%
Visibility—
Dew point41°
Fri, 2370° / 55°0Overcast
70 °Overcast

Princeton, Friday, 23 October

Overcast. High 70°, low 55°.

Pressure30.18 inHg
Wind11.3 mph S
Humidity46%
Visibility—
Dew point44°
Sat, 2474° / 60°0Overcast
74 °Overcast

Princeton, Saturday, 24 October

Overcast. High 74°, low 60°.

Pressure30.15 inHg
Wind14.8 mph SW
Humidity53%
Visibility—
Dew point52°
Sun, 2568° / 53°0Clear
68 °Clear

Princeton, Sunday, 25 October

Clear. High 68°, low 53°.

Pressure30.45 inHg
Wind7.2 mph NE
Humidity39%
Visibility—
Dew point40°
Mon, 2667° / 50°0Overcast
67 °Overcast

Princeton, Monday, 26 October

Overcast. High 67°, low 50°.

Pressure30.45 inHg
Wind10.1 mph E
Humidity39%
Visibility—
Dew point38°
Tue, 2770° / 55°0Overcast
70 °Overcast

Princeton, Tuesday, 27 October

Overcast. High 70°, low 55°.

Pressure30.21 inHg
Wind11.3 mph S
Humidity49%
Visibility—
Dew point48°
Wed, 2863° / 58°0.01Light rain
63 °Light rain

Princeton, Wednesday, 28 October

Light rain. High 63°, low 58°.

Pressure30.24 inHg
Wind7.4 mph SE
Humidity53%
Visibility—
Dew point46°
Thu, 2971° / 58°0.34Rain
71 °Rain

Princeton, Thursday, 29 October

Rain. High 71°, low 58°.

Pressure30.00 inHg
Wind16.6 mph SW
Humidity55%
Visibility—
Dew point52°
Fri, 3057° / 45°0Overcast
57 °Overcast

Princeton, Friday, 30 October

Overcast. High 57°, low 45°.

Pressure30.33 inHg
Wind11.7 mph N
Humidity46%
Visibility—
Dew point32°

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.