As of 03:13 CDT

Weather in Chillicothe, IL

55°Current weather

Chillicothe, Saturday, 31 October, 03:13

Light rain. Feels like 54°. High 64°, low 53°.

Pressure30.30 inHg
Wind7.2 mph E
Humidity85%
Visibility6.2 mi
Dew point49°

Monthly outlook for Chillicothe, IL: average high 61.3°, average low 48.7°. That is 4.9° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 3 November (71°), the coolest 14 November (31.5°).

61.3°/48.7°
Average high / low
+4.9°
Above normal
4 / 4
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
31 October – 9 November64.3°54.4°+5.5°
10 November – 19 November56.4°49.2°+4°
20 November – 29 Novemberat normal44.8°—

October records over 66 years

89.1°3 October 2025All-time high
21°22 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Peoria (13 mi).

Sun, 0166° / 55°0Overcast
66 °Overcast

Chillicothe, Sunday, 1 November

Overcast. High 66°, low 55°.

Pressure30.30 inHg
Wind5 mph SE
Humidity65%
Visibility6.2 mi
Dew point53°
Mon, 0264° / 56°0.03Light rain
64 °Light rain

Chillicothe, Monday, 2 November

Light rain. High 64°, low 56°.

Pressure30.06 inHg
Wind11.2 mph SE
Humidity81%
Visibility6.2 mi
Dew point54°
Tue, 0371° / 63°0.09Light rain
71 °Light rain

Chillicothe, Tuesday, 3 November

Light rain. High 71°, low 63°.

Pressure29.91 inHg
Wind18.4 mph S
Humidity69%
Visibility6.2 mi
Dew point60°
Wed, 0468° / 62°0.22Light rain
68 °Light rain

Chillicothe, Wednesday, 4 November

Light rain. High 68°, low 62°.

Pressure29.80 inHg
Wind10.8 mph S
Humidity84%
Visibility—
Dew point62°
Thu, 0566° / 52°0.08Light rain
66 °Light rain

Chillicothe, Thursday, 5 November

Light rain. High 66°, low 52°.

Pressure29.68 inHg
Wind8.1 mph E
Humidity75%
Visibility—
Dew point58°
Fri, 0658° / 47°0Overcast
58 °Overcast

Chillicothe, Friday, 6 November

Overcast. High 58°, low 47°.

Pressure30.06 inHg
Wind6.5 mph NE
Humidity57%
Visibility—
Dew point41°
Sat, 0761° / 46°0Partly cloudy
61 °Partly cloudy

Chillicothe, Saturday, 7 November

Partly cloudy. High 61°, low 46°.

Pressure30.12 inHg
Wind6.9 mph E
Humidity55%
Visibility—
Dew point42°
Sun, 0860° / 48°0Overcast
60 °Overcast

Chillicothe, Sunday, 8 November

Overcast. High 60°, low 48°.

Pressure30.12 inHg
Wind6.4 mph E
Humidity58%
Visibility—
Dew point43°
Mon, 0964° / 47°0Clear
64 °Clear

Chillicothe, Monday, 9 November

Clear. High 64°, low 47°.

Pressure30.12 inHg
Wind7.9 mph W
Humidity57%
Visibility—
Dew point45°
Tue, 1066° / 47°0Clear
66 °Clear

Chillicothe, Tuesday, 10 November

Clear. High 66°, low 47°.

Pressure29.97 inHg
Wind9.4 mph SW
Humidity43%
Visibility—
Dew point39°
Wed, 1164° / 50°0Overcast
64 °Overcast

Chillicothe, Wednesday, 11 November

Overcast. High 64°, low 50°.

Pressure29.80 inHg
Wind11.2 mph NW
Humidity50%
Visibility—
Dew point43°
Thu, 1263° / 46°0Clear
63 °Clear

Chillicothe, Thursday, 12 November

Clear. High 63°, low 46°.

Pressure29.80 inHg
Wind18 mph NW
Humidity48%
Visibility—
Dew point40°
Fri, 1347° / 38°0Clear
47 °Clear

Chillicothe, Friday, 13 November

Clear. High 47°, low 38°.

Pressure30.00 inHg
Wind18.1 mph NW
Humidity44%
Visibility—
Dew point24°
Sat, 1448° / 32°0Clear
48 °Clear

Chillicothe, Saturday, 14 November

Clear. High 48°, low 32°.

Pressure30.12 inHg
Wind12.7 mph NW
Humidity47%
Visibility—
Dew point25°
Sun, 1551° / 37°0Overcast
51 °Overcast

Chillicothe, Sunday, 15 November

Overcast. High 51°, low 37°.

Pressure30.12 inHg
Wind10.7 mph SE
Humidity43%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 1649° / 35°0.06Climate normal
49 °Climate normal

Chillicothe, Monday, 16 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation23%
Record high69° (1971)
Record low21° (1997)
Tue, 1750° / 35°0.12Climate normal
50 °Climate normal

Chillicothe, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.12 in
Chance of precipitation30%
Record high73° (2016)
Record low16° (2005)
Wed, 1849° / 36°0.14Climate normal
49 °Climate normal

Chillicothe, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.14 in
Chance of precipitation33%
Record high69° (1999)
Record low12° (2014)
Thu, 1949° / 35°0.07Climate normal
49 °Climate normal

Chillicothe, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high68° (1979)
Record low19° (2014)
Fri, 2047° / 34°0.1Climate normal
47 °Climate normal

Chillicothe, Friday, 20 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.1 in
Chance of precipitation32%
Record high67° (2007)
Record low17° (2022)
Sat, 2146° / 32°0.09Climate normal
46 °Climate normal

Chillicothe, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high46°
Average low32°
Average precipitation0.09 in
Chance of precipitation27%
Record high67° (1990)
Record low9° (1964)
Sun, 2247° / 31°0.05Climate normal
47 °Climate normal

Chillicothe, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high47°
Average low31°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (2010)
Record low3° (2015)
Mon, 2346° / 32°0.07Climate normal
46 °Climate normal

Chillicothe, Monday, 23 November

Climate normal for this date — 60-year average.

Average high46°
Average low32°
Average precipitation0.07 in
Chance of precipitation27%
Record high65° (2003)
Record low12° (1970)
Tue, 2445° / 31°0.09Climate normal
45 °Climate normal

Chillicothe, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.09 in
Chance of precipitation23%
Record high67° (1966)
Record low12° (1970)
Wed, 2545° / 31°0.07Climate normal
45 °Climate normal

Chillicothe, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high64° (2006)
Record low10° (1977)
Thu, 2645° / 31°0.14Climate normal
45 °Climate normal

Chillicothe, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.14 in
Chance of precipitation38%
Record high67° (1965)
Record low5° (1977)
Fri, 2744° / 31°0.21Climate normal
44 °Climate normal

Chillicothe, Friday, 27 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.21 in
Chance of precipitation43%
Record high66° (1990)
Record low9° (1993)
Sat, 2841° / 28°0.12Climate normal
41 °Climate normal

Chillicothe, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high41°
Average low28°
Average precipitation0.12 in
Chance of precipitation25%
Record high65° (1998)
Record low4° (2018)
Sun, 2942° / 29°0.07Climate normal
42 °Climate normal

Chillicothe, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.07 in
Chance of precipitation27%
Record high66° (1998)
Record low6° (1976)

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 Chillicothe, 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 Chillicothe, 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.