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As of 22:00 CDT

Weather in Trenton, IL

77°Current weather

Trenton, Saturday, 8 August, 22:00

Clear. Feels like 78°. High 90°, low 70°.

Pressure30.00 inHg
Wind1 mph SE
Humidity86%
Visibility6.2 mi
Dew point72°
Sun, 0995° / 73°0Overcast
95 °Overcast

Trenton, Sunday, 9 August

Overcast. High 95°, low 73°.

Pressure30.00 inHg
Wind11.5 mph S
Humidity62%
Visibility6.2 mi
Dew point73°
Mon, 1097° / 74°0Partly cloudy
97 °Partly cloudy

Trenton, Monday, 10 August

Partly cloudy. High 97°, low 74°.

Pressure29.94 inHg
Wind13.1 mph SW
Humidity53%
Visibility6.2 mi
Dew point72°
Tue, 1199° / 74°0.06Light rain
99 °Light rain

Trenton, Tuesday, 11 August

Light rain. High 99°, low 74°.

Pressure29.88 inHg
Wind10 mph SW
Humidity50%
Visibility6.2 mi
Dew point71°
Wed, 1290° / 71°0.18Light rain
90 °Light rain

Trenton, Wednesday, 12 August

Light rain. High 90°, low 71°.

Pressure29.88 inHg
Wind5.7 mph NW
Humidity66%
Visibility6.2 mi
Dew point71°
Thu, 1383° / 70°1.1Heavy rain
83 °Heavy rain

Trenton, Thursday, 13 August

Heavy rain. High 83°, low 70°.

Pressure29.91 inHg
Wind14.8 mph E
Humidity68%
Visibility—
Dew point70°
Fri, 1475° / 69°0.58Heavy rain
75 °Heavy rain

Trenton, Friday, 14 August

Heavy rain. High 75°, low 69°.

Pressure30.03 inHg
Wind11.2 mph SE
Humidity87%
Visibility—
Dew point70°
Sat, 1579° / 67°0.17Light rain
79 °Light rain

Trenton, Saturday, 15 August

Light rain. High 79°, low 67°.

Pressure30.18 inHg
Wind14.7 mph SE
Humidity73%
Visibility—
Dew point66°
Sun, 1680° / 65°0.13Light rain
80 °Light rain

Trenton, Sunday, 16 August

Light rain. High 80°, low 65°.

Pressure30.06 inHg
Wind9.4 mph E
Humidity80%
Visibility—
Dew point71°
Mon, 1781° / 68°0.06Light rain
81 °Light rain

Trenton, Monday, 17 August

Light rain. High 81°, low 68°.

Pressure30.03 inHg
Wind8.1 mph NE
Humidity82%
Visibility—
Dew point70°
Tue, 1882° / 69°0.04Light rain
82 °Light rain

Trenton, Tuesday, 18 August

Light rain. High 82°, low 69°.

Pressure30.00 inHg
Wind7.6 mph W
Humidity77%
Visibility—
Dew point72°
Wed, 1985° / 70°0Overcast
85 °Overcast

Trenton, Wednesday, 19 August

Overcast. High 85°, low 70°.

Pressure29.91 inHg
Wind12.4 mph NE
Humidity64%
Visibility—
Dew point69°
Thu, 2075° / 58°0Mostly clear
75 °Mostly clear

Trenton, Thursday, 20 August

Mostly clear. High 75°, low 58°.

Pressure30.03 inHg
Wind11.4 mph NE
Humidity60%
Visibility—
Dew point57°
Fri, 2176° / 57°0.04Light rain
76 °Light rain

Trenton, Friday, 21 August

Light rain. High 76°, low 57°.

Pressure30.06 inHg
Wind9.4 mph E
Humidity58%
Visibility—
Dew point55°
Sat, 2287° / 62°0.17Light rain
87 °Light rain

Trenton, Saturday, 22 August

Light rain. High 87°, low 62°.

Pressure29.85 inHg
Wind12.3 mph SE
Humidity64%
Visibility—
Dew point66°
Sun, 2392° / 70°0.01Light rain
92 °Light rain

Trenton, Sunday, 23 August

Light rain. High 92°, low 70°.

Pressure29.94 inHg
Wind7.6 mph E
Humidity60%
Visibility—
Dew point71°

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.