As of 11:54 CDT

Weather in Trenton, IL

72°Current weather

Trenton, Thursday, 22 October, 11:54

Clear. Feels like 71°. High 75°, low 46°.

Pressure30.27 inHg
Wind1 mph S
Humidity46%
Visibility6.2 mi
Dew point50°
Fri, 2375° / 47°0Clear
75 °Clear

Trenton, Friday, 23 October

Clear. High 75°, low 47°.

Pressure30.30 inHg
Wind5.1 mph SE
Humidity44%
Visibility6.2 mi
Dew point47°
Sat, 2472° / 49°0Overcast
72 °Overcast

Trenton, Saturday, 24 October

Overcast. High 72°, low 49°.

Pressure30.36 inHg
Wind4.8 mph SE
Humidity49%
Visibility6.2 mi
Dew point49°
Sun, 2575° / 50°0Clear
75 °Clear

Trenton, Sunday, 25 October

Clear. High 75°, low 50°.

Pressure30.42 inHg
Wind3.7 mph S
Humidity48%
Visibility6.2 mi
Dew point51°
Mon, 2673° / 52°0Overcast
73 °Overcast

Trenton, Monday, 26 October

Overcast. High 73°, low 52°.

Pressure30.33 inHg
Wind5.2 mph SE
Humidity42%
Visibility—
Dew point45°
Tue, 2771° / 52°0Overcast
71 °Overcast

Trenton, Tuesday, 27 October

Overcast. High 71°, low 52°.

Pressure30.27 inHg
Wind4.8 mph S
Humidity44%
Visibility—
Dew point46°
Wed, 2872° / 54°0Clear
72 °Clear

Trenton, Wednesday, 28 October

Clear. High 72°, low 54°.

Pressure30.12 inHg
Wind11.2 mph W
Humidity42%
Visibility—
Dew point44°
Thu, 2966° / 48°0.11Light rain
66 °Light rain

Trenton, Thursday, 29 October

Light rain. High 66°, low 48°.

Pressure30.18 inHg
Wind14.6 mph NW
Humidity90%
Visibility—
Dew point56°
Fri, 3062° / 41°0Overcast
62 °Overcast

Trenton, Friday, 30 October

Overcast. High 62°, low 41°.

Pressure30.24 inHg
Wind7.2 mph E
Humidity30%
Visibility—
Dew point26°
Sat, 3156° / 48°0.39Rain
56 °Rain

Trenton, Saturday, 31 October

Rain. High 56°, low 48°.

Pressure30.06 inHg
Wind11.3 mph SE
Humidity89%
Visibility—
Dew point51°
Sun, 0165° / 56°0.09Light rain
65 °Light rain

Trenton, Sunday, 1 November

Light rain. High 65°, low 56°.

Pressure30.06 inHg
Wind11.9 mph S
Humidity86%
Visibility—
Dew point57°
Mon, 0267° / 59°0Overcast
67 °Overcast

Trenton, Monday, 2 November

Overcast. High 67°, low 59°.

Pressure30.15 inHg
Wind4.8 mph NE
Humidity67%
Visibility—
Dew point55°
Tue, 0369° / 51°0Clear
69 °Clear

Trenton, Tuesday, 3 November

Clear. High 69°, low 51°.

Pressure30.18 inHg
Wind8.7 mph NW
Humidity33%
Visibility—
Dew point35°
Wed, 0465° / 49°0Clear
65 °Clear

Trenton, Wednesday, 4 November

Clear. High 65°, low 49°.

Pressure30.18 inHg
Wind9 mph N
Humidity28%
Visibility—
Dew point29°
Thu, 0561° / 40°0Clear
61 °Clear

Trenton, Thursday, 5 November

Clear. High 61°, low 40°.

Pressure30.18 inHg
Wind8.9 mph SE
Humidity28%
Visibility—
Dew point23°
Fri, 0654° / 51°0.13Light rain
54 °Light rain

Trenton, Friday, 6 November

Light rain. High 54°, low 51°.

Pressure30.03 inHg
Wind13.4 mph S
Humidity64%
Visibility—
Dew point41°

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 Trenton, 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 Trenton, 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.