As of 03:16 CDT

Weather in Bolton, IL

51°Current weather

Bolton, Friday, 16 October, 03:16

Clear. Feels like 50°. High 53°, low 42°.

Pressure29.94 inHg
Wind19.6 mph NW
Humidity88%
Visibility6.2 mi
Dew point47°

Monthly outlook for Bolton, IL: average high 61.7°, average low 46.7°. That is 2.7° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 24 October (70.8°), the coolest 17 October (35.5°).

61.7°/46.7°
Average high / low
+2.7°
Above normal
3 / 5
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October64.5°58°+3.6°
26 October – 4 November57.1°53.8°+1.8°
5 November – 14 Novemberat normal48.1°—

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).

Sat, 1755° / 35°0Clear
55 °Clear

Bolton, Saturday, 17 October

Clear. High 55°, low 35°.

Pressure30.53 inHg
Wind8 mph SW
Humidity47%
Visibility6.2 mi
Dew point32°
Sun, 1861° / 42°0Clear
61 °Clear

Bolton, Sunday, 18 October

Clear. High 61°, low 42°.

Pressure30.42 inHg
Wind14.7 mph SW
Humidity50%
Visibility6.2 mi
Dew point38°
Mon, 1963° / 42°0Overcast
63 °Overcast

Bolton, Monday, 19 October

Overcast. High 63°, low 42°.

Pressure30.36 inHg
Wind7.4 mph S
Humidity58%
Visibility6.2 mi
Dew point43°
Tue, 2066° / 45°0Mostly clear
66 °Mostly clear

Bolton, Tuesday, 20 October

Mostly clear. High 66°, low 45°.

Pressure30.33 inHg
Wind7 mph S
Humidity48%
Visibility—
Dew point43°
Wed, 2167° / 46°0Mostly clear
67 °Mostly clear

Bolton, Wednesday, 21 October

Mostly clear. High 67°, low 46°.

Pressure30.27 inHg
Wind8.1 mph S
Humidity45%
Visibility—
Dew point42°
Thu, 2270° / 53°0Overcast
70 °Overcast

Bolton, Thursday, 22 October

Overcast. High 70°, low 53°.

Pressure30.24 inHg
Wind9.7 mph S
Humidity42%
Visibility—
Dew point42°
Fri, 2370° / 55°0Partly cloudy
70 °Partly cloudy

Bolton, Friday, 23 October

Partly cloudy. High 70°, low 55°.

Pressure30.18 inHg
Wind11.3 mph S
Humidity38%
Visibility—
Dew point41°
Sat, 2471° / 56°0Overcast
71 °Overcast

Bolton, Saturday, 24 October

Overcast. High 71°, low 56°.

Pressure30.21 inHg
Wind11.4 mph SE
Humidity43%
Visibility—
Dew point44°
Sun, 2569° / 55°0Overcast
69 °Overcast

Bolton, Sunday, 25 October

Overcast. High 69°, low 55°.

Pressure30.27 inHg
Wind7.4 mph NE
Humidity48%
Visibility—
Dew point46°
Mon, 2665° / 51°0.02Light rain
65 °Light rain

Bolton, Monday, 26 October

Light rain. High 65°, low 51°.

Pressure30.03 inHg
Wind12.6 mph SE
Humidity53%
Visibility—
Dew point45°
Tue, 2756° / 47°0.06Light rain
56 °Light rain

Bolton, Tuesday, 27 October

Light rain. High 56°, low 47°.

Pressure30.00 inHg
Wind13.1 mph SW
Humidity77%
Visibility—
Dew point47°
Wed, 2850° / 47°0.89Rain
50 °Rain

Bolton, Wednesday, 28 October

Rain. High 50°, low 47°.

Pressure29.65 inHg
Wind17.7 mph E
Humidity95%
Visibility—
Dew point47°
Thu, 2956° / 47°0.05Light rain
56 °Light rain

Bolton, Thursday, 29 October

Light rain. High 56°, low 47°.

Pressure29.85 inHg
Wind17.6 mph NW
Humidity76%
Visibility—
Dew point47°
Fri, 3057° / 43°0Clear
57 °Clear

Bolton, Friday, 30 October

Clear. High 57°, low 43°.

Pressure30.00 inHg
Wind15.8 mph W
Humidity48%
Visibility—
Dew point35°
Sat, 3158° / 42°0Overcast
58 °Overcast

Bolton, Saturday, 31 October

Overcast. High 58°, low 42°.

Pressure29.97 inHg
Wind8.2 mph S
Humidity52%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1446° / 32°0.06Climate normal
46 °Climate normal

Bolton, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation32%
Record high67° (2025)
Record low14° (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.