As of 05:50 CDT

Weather in Bolton, IL

55°Current weather

Bolton, Thursday, 15 October, 05:50

Overcast. Feels like 55°. High 64°, low 52°.

Pressure30.12 inHg
Wind4.6 mph E
Humidity91%
Visibility2.2 mi
Dew point53°

Monthly outlook for Bolton, IL: average high 56.8°, average low 42.2°. That is 0.2° below the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 23 October (68.3°), the coolest 30 October (27.8°).

56.8°/42.2°
Average high / low
−0.2°
Below normal
2 / 5
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October62.2°58.5°+2.1°
25 October – 3 November47.7°54.3°-3.7°
4 November – 13 Novemberat normal48.6°—

October records over 66 years

86.4°3 October 2025All-time high
21.4°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Freeport (6 mi).

Fri, 1654° / 43°0.01Light rain
54 °Light rain

Bolton, Friday, 16 October

Light rain. High 54°, low 43°.

Pressure30.12 inHg
Wind20.3 mph N
Humidity67%
Visibility6.2 mi
Dew point42°
Sat, 1755° / 35°0Clear
55 °Clear

Bolton, Saturday, 17 October

Clear. High 55°, low 35°.

Pressure30.53 inHg
Wind8.2 mph SW
Humidity49%
Visibility6.2 mi
Dew point33°
Sun, 1860° / 42°0Clear
60 °Clear

Bolton, Sunday, 18 October

Clear. High 60°, low 42°.

Pressure30.42 inHg
Wind15.3 mph SW
Humidity49%
Visibility6.2 mi
Dew point37°
Mon, 1962° / 41°0Partly cloudy
62 °Partly cloudy

Bolton, Monday, 19 October

Partly cloudy. High 62°, low 41°.

Pressure30.36 inHg
Wind9.7 mph S
Humidity53%
Visibility—
Dew point42°
Tue, 2064° / 45°0Overcast
64 °Overcast

Bolton, Tuesday, 20 October

Overcast. High 64°, low 45°.

Pressure30.33 inHg
Wind5.6 mph SE
Humidity49%
Visibility—
Dew point41°
Wed, 2166° / 48°0Clear
66 °Clear

Bolton, Wednesday, 21 October

Clear. High 66°, low 48°.

Pressure30.36 inHg
Wind7.6 mph SE
Humidity49%
Visibility—
Dew point43°
Thu, 2267° / 51°0Overcast
67 °Overcast

Bolton, Thursday, 22 October

Overcast. High 67°, low 51°.

Pressure30.27 inHg
Wind9.4 mph S
Humidity49%
Visibility—
Dew point44°
Fri, 2368° / 55°0Overcast
68 °Overcast

Bolton, Friday, 23 October

Overcast. High 68°, low 55°.

Pressure30.09 inHg
Wind15.2 mph S
Humidity47%
Visibility—
Dew point44°
Sat, 2462° / 55°0.02Light rain
62 °Light rain

Bolton, Saturday, 24 October

Light rain. High 62°, low 55°.

Pressure30.09 inHg
Wind16.6 mph S
Humidity75%
Visibility—
Dew point54°
Sun, 2556° / 41°0.21Light rain
56 °Light rain

Bolton, Sunday, 25 October

Light rain. High 56°, low 41°.

Pressure30.15 inHg
Wind14.5 mph W
Humidity54%
Visibility—
Dew point34°
Mon, 2647° / 34°0Clear
47 °Clear

Bolton, Monday, 26 October

Clear. High 47°, low 34°.

Pressure30.33 inHg
Wind13.2 mph W
Humidity41%
Visibility—
Dew point22°
Tue, 2743° / 32°0Partly cloudy
43 °Partly cloudy

Bolton, Tuesday, 27 October

Partly cloudy. High 43°, low 32°.

Pressure30.27 inHg
Wind12.1 mph W
Humidity38%
Visibility—
Dew point17°
Wed, 2854° / 33°0.01Light rain
54 °Light rain

Bolton, Wednesday, 28 October

Light rain. High 54°, low 33°.

Pressure30.03 inHg
Wind15.1 mph SW
Humidity57%
Visibility—
Dew point36°
Thu, 2947° / 40°0.02Light rain
47 °Light rain

Bolton, Thursday, 29 October

Light rain. High 47°, low 40°.

Pressure30.09 inHg
Wind9.2 mph NW
Humidity54%
Visibility—
Dew point29°
Fri, 3039° / 28°0Clear
39 °Clear

Bolton, Friday, 30 October

Clear. High 39°, low 28°.

Pressure30.50 inHg
Wind15.5 mph N
Humidity41%
Visibility—
Dew point16°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3154° / 41°0.11Climate normal
54 °Climate normal

Bolton, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.11 in
Chance of precipitation37%
Record high71° (1974)
Record low24° (2019)
Sun, 0153° / 40°0.2Climate normal
53 °Climate normal

Bolton, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.2 in
Chance of precipitation38%
Record high74° (2000)
Record low20° (2019)
Mon, 0252° / 39°0.13Climate normal
52 °Climate normal

Bolton, Monday, 2 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.13 in
Chance of precipitation32%
Record high73° (1961)
Record low20° (1991)
Tue, 0352° / 38°0.06Climate normal
52 °Climate normal

Bolton, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (1964)
Record low15° (1991)
Wed, 0451° / 39°0.09Climate normal
51 °Climate normal

Bolton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high51°
Average low39°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (2015)
Record low13° (1991)
Thu, 0551° / 37°0.1Climate normal
51 °Climate normal

Bolton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation22%
Record high70° (1978)
Record low18° (1991)
Fri, 0651° / 36°0.08Climate normal
51 °Climate normal

Bolton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high51°
Average low36°
Average precipitation0.08 in
Chance of precipitation35%
Record high69° (2020)
Record low20° (1991)
Sat, 0750° / 36°0.03Climate normal
50 °Climate normal

Bolton, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.03 in
Chance of precipitation18%
Record high68° (2020)
Record low10° (1991)
Sun, 0850° / 36°0.05Climate normal
50 °Climate normal

Bolton, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation15%
Record high71° (2020)
Record low13° (1991)
Mon, 0949° / 36°0.12Climate normal
49 °Climate normal

Bolton, Monday, 9 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation35%
Record high73° (2020)
Record low17° (1991)
Tue, 1048° / 35°0.09Climate normal
48 °Climate normal

Bolton, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high71° (2022)
Record low15° (2017)
Wed, 1146° / 32°0.07Climate normal
46 °Climate normal

Bolton, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high46°
Average low32°
Average precipitation0.07 in
Chance of precipitation27%
Record high69° (1964)
Record low12° (2019)
Thu, 1245° / 31°0.06Climate normal
45 °Climate normal

Bolton, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.06 in
Chance of precipitation28%
Record high64° (1964)
Record low2° (2019)
Fri, 1345° / 31°0.04Climate normal
45 °Climate normal

Bolton, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (1999)
Record low7° (1986)

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 Bolton, 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 Bolton, 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.