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As of 11:42 CDT

Weather in Colchester, IL

70°Current weather

Colchester, Thursday, 22 October, 11:42

Clear. Feels like 69°. High 73°, low 47°.

Pressure30.27 inHg
Wind0 mph N
Humidity52%
Visibility6.2 mi
Dew point51°
Fri, 2374° / 48°0Mostly clear
74 °Mostly clear

Colchester, Friday, 23 October

Mostly clear. High 74°, low 48°.

Pressure30.27 inHg
Wind8.3 mph S
Humidity47%
Visibility6.2 mi
Dew point49°
Sat, 2471° / 49°0Overcast
71 °Overcast

Colchester, Saturday, 24 October

Overcast. High 71°, low 49°.

Pressure30.33 inHg
Wind8 mph S
Humidity51%
Visibility6.2 mi
Dew point49°
Sun, 2574° / 50°0Overcast
74 °Overcast

Colchester, Sunday, 25 October

Overcast. High 74°, low 50°.

Pressure30.39 inHg
Wind3.9 mph S
Humidity52%
Visibility6.2 mi
Dew point51°
Mon, 2673° / 53°0Overcast
73 °Overcast

Colchester, Monday, 26 October

Overcast. High 73°, low 53°.

Pressure30.30 inHg
Wind5.1 mph SE
Humidity48%
Visibility—
Dew point48°
Tue, 2771° / 53°0Overcast
71 °Overcast

Colchester, Tuesday, 27 October

Overcast. High 71°, low 53°.

Pressure30.24 inHg
Wind6.3 mph S
Humidity51%
Visibility—
Dew point48°
Wed, 2864° / 55°0Overcast
64 °Overcast

Colchester, Wednesday, 28 October

Overcast. High 64°, low 55°.

Pressure30.12 inHg
Wind10.5 mph SW
Humidity57%
Visibility—
Dew point46°
Thu, 2959° / 43°0.09Light rain
59 °Light rain

Colchester, Thursday, 29 October

Light rain. High 59°, low 43°.

Pressure30.24 inHg
Wind18.1 mph NW
Humidity48%
Visibility—
Dew point34°
Fri, 3056° / 37°0Overcast
56 °Overcast

Colchester, Friday, 30 October

Overcast. High 56°, low 37°.

Pressure30.27 inHg
Wind9.3 mph SE
Humidity35%
Visibility—
Dew point25°
Sat, 3155° / 46°0.61Rain
55 °Rain

Colchester, Saturday, 31 October

Rain. High 55°, low 46°.

Pressure30.00 inHg
Wind16.3 mph S
Humidity94%
Visibility—
Dew point50°
Sun, 0162° / 54°0.29Rain
62 °Rain

Colchester, Sunday, 1 November

Rain. High 62°, low 54°.

Pressure30.00 inHg
Wind16.8 mph S
Humidity87%
Visibility—
Dew point55°
Mon, 0266° / 52°0Overcast
66 °Overcast

Colchester, Monday, 2 November

Overcast. High 66°, low 52°.

Pressure30.18 inHg
Wind6.9 mph N
Humidity59%
Visibility—
Dew point49°
Tue, 0367° / 47°0Clear
67 °Clear

Colchester, Tuesday, 3 November

Clear. High 67°, low 47°.

Pressure30.18 inHg
Wind10.1 mph W
Humidity47%
Visibility—
Dew point41°
Wed, 0459° / 44°0Clear
59 °Clear

Colchester, Wednesday, 4 November

Clear. High 59°, low 44°.

Pressure30.21 inHg
Wind7.7 mph NE
Humidity35%
Visibility—
Dew point29°
Thu, 0558° / 39°0Clear
58 °Clear

Colchester, Thursday, 5 November

Clear. High 58°, low 39°.

Pressure30.18 inHg
Wind12.5 mph SE
Humidity39%
Visibility—
Dew point29°
Fri, 0661° / 49°0.25Light rain
61 °Light rain

Colchester, Friday, 6 November

Light rain. High 61°, low 49°.

Pressure29.94 inHg
Wind13.6 mph SE
Humidity81%
Visibility—
Dew point53°

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.