As of 22:28 CDT

Weather in Colchester, IL

49°Current weather

Colchester, Sunday, 18 October, 22:28

Clear. Feels like 46°. High 65°, low 39°.

Pressure30.36 inHg
Wind5.7 mph S
Humidity71%
Visibility6.2 mi
Dew point39°
Mon, 1968° / 41°0Overcast
68 °Overcast

Colchester, Monday, 19 October

Overcast. High 68°, low 41°.

Pressure30.39 inHg
Wind4.7 mph S
Humidity50%
Visibility6.2 mi
Dew point44°
Tue, 2068° / 43°0Clear
68 °Clear

Colchester, Tuesday, 20 October

Clear. High 68°, low 43°.

Pressure30.36 inHg
Wind4.7 mph SE
Humidity47%
Visibility6.2 mi
Dew point45°
Wed, 2170° / 46°0Clear
70 °Clear

Colchester, Wednesday, 21 October

Clear. High 70°, low 46°.

Pressure30.30 inHg
Wind2.2 mph SW
Humidity51%
Visibility6.2 mi
Dew point49°
Thu, 2270° / 52°0Clear
70 °Clear

Colchester, Thursday, 22 October

Clear. High 70°, low 52°.

Pressure30.30 inHg
Wind3.1 mph E
Humidity56%
Visibility6.2 mi
Dew point51°
Fri, 2367° / 49°0Clear
67 °Clear

Colchester, Friday, 23 October

Clear. High 67°, low 49°.

Pressure30.33 inHg
Wind8.1 mph SE
Humidity47%
Visibility—
Dew point44°
Sat, 2473° / 49°0Overcast
73 °Overcast

Colchester, Saturday, 24 October

Overcast. High 73°, low 49°.

Pressure30.33 inHg
Wind10.6 mph S
Humidity44%
Visibility—
Dew point44°
Sun, 2565° / 52°0Light rain
65 °Light rain

Colchester, Sunday, 25 October

Light rain. High 65°, low 52°.

Pressure30.33 inHg
Wind14.3 mph NW
Humidity26%
Visibility—
Dew point27°
Mon, 2666° / 49°0.01Light rain
66 °Light rain

Colchester, Monday, 26 October

Light rain. High 66°, low 49°.

Pressure30.15 inHg
Wind16 mph S
Humidity46%
Visibility—
Dew point43°
Tue, 2764° / 54°0.08Light rain
64 °Light rain

Colchester, Tuesday, 27 October

Light rain. High 64°, low 54°.

Pressure30.12 inHg
Wind10.9 mph SW
Humidity76%
Visibility—
Dew point51°
Wed, 2855° / 54°0.28Light rain
55 °Light rain

Colchester, Wednesday, 28 October

Light rain. High 55°, low 54°.

Pressure30.12 inHg
Wind7.6 mph SE
Humidity94%
Visibility—
Dew point53°
Thu, 2967° / 54°0.06Light rain
67 °Light rain

Colchester, Thursday, 29 October

Light rain. High 67°, low 54°.

Pressure29.97 inHg
Wind15.7 mph S
Humidity85%
Visibility—
Dew point55°
Fri, 3072° / 56°0.07Light rain
72 °Light rain

Colchester, Friday, 30 October

Light rain. High 72°, low 56°.

Pressure29.80 inHg
Wind18.3 mph S
Humidity56%
Visibility—
Dew point55°
Sat, 3164° / 53°0.01Light rain
64 °Light rain

Colchester, Saturday, 31 October

Light rain. High 64°, low 53°.

Pressure30.03 inHg
Wind13.6 mph SE
Humidity31%
Visibility—
Dew point30°
Sun, 0161° / 41°0.19Light rain
61 °Light rain

Colchester, Sunday, 1 November

Light rain. High 61°, low 41°.

Pressure29.91 inHg
Wind23.2 mph NW
Humidity47%
Visibility—
Dew point33°
Mon, 0261° / 41°0Mostly clear
61 °Mostly clear

Colchester, Monday, 2 November

Mostly clear. High 61°, low 41°.

Pressure30.03 inHg
Wind9.5 mph SE
Humidity32%
Visibility—
Dew point26°

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 Colchester, 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 Colchester, 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.