As of 04:06 CDT

Weather in Bannockburn, IL

48°Current weather

Bannockburn, Friday, 23 October, 04:06

Mostly clear. Feels like 48°. High 71°, low 47°.

Pressure30.27 inHg
Wind0 mph N
Humidity93%
Visibility6.2 mi
Dew point45°

Monthly outlook for Bannockburn, IL: average high 61°, average low 49.1°. That is 4.4° above the climate normal for October. Precipitation is expected on 4 days (about 2.1 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 29 October (72.8°), the coolest 3 November (37.7°).

61°/49.1°
Average high / low
+4.4°
Above normal
4 / 5
Wet days / normal
2.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
23 October – 1 November65°54.4°+5.9°
2 November – 11 November54.4°50°+2.4°
12 November – 21 Novemberat normal45.3°—

October records over 66 years

87.4°3 October 2025All-time high
27.5°31 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Highwood (3 mi).

Sat, 2468° / 48°0Overcast
68 °Overcast

Bannockburn, Saturday, 24 October

Overcast. High 68°, low 48°.

Pressure30.36 inHg
Wind5.8 mph S
Humidity65%
Visibility6.2 mi
Dew point51°
Sun, 2571° / 53°0.02Light rain
71 °Light rain

Bannockburn, Sunday, 25 October

Light rain. High 71°, low 53°.

Pressure30.36 inHg
Wind5.4 mph SW
Humidity59%
Visibility6.2 mi
Dew point53°
Mon, 2660° / 52°0Overcast
60 °Overcast

Bannockburn, Monday, 26 October

Overcast. High 60°, low 52°.

Pressure30.39 inHg
Wind8.8 mph NE
Humidity66%
Visibility6.2 mi
Dew point49°
Tue, 2758° / 52°0Overcast
58 °Overcast

Bannockburn, Tuesday, 27 October

Overcast. High 58°, low 52°.

Pressure30.30 inHg
Wind7.7 mph E
Humidity81%
Visibility—
Dew point51°
Wed, 2870° / 52°0Clear
70 °Clear

Bannockburn, Wednesday, 28 October

Clear. High 70°, low 52°.

Pressure30.00 inHg
Wind11.6 mph SW
Humidity63%
Visibility—
Dew point52°
Thu, 2973° / 63°0Overcast
73 °Overcast

Bannockburn, Thursday, 29 October

Overcast. High 73°, low 63°.

Pressure30.09 inHg
Wind12.5 mph S
Humidity39%
Visibility—
Dew point44°
Fri, 3065° / 56°1.48Heavy rain
65 °Heavy rain

Bannockburn, Friday, 30 October

Heavy rain. High 65°, low 56°.

Pressure30.06 inHg
Wind6.2 mph S
Humidity87%
Visibility—
Dew point55°
Sat, 3158° / 56°0.44Rain
58 °Rain

Bannockburn, Saturday, 31 October

Rain. High 58°, low 56°.

Pressure29.91 inHg
Wind5.5 mph NE
Humidity95%
Visibility—
Dew point56°
Sun, 0156° / 48°0.09Light rain
56 °Light rain

Bannockburn, Sunday, 1 November

Light rain. High 56°, low 48°.

Pressure29.94 inHg
Wind9.8 mph W
Humidity82%
Visibility—
Dew point48°
Mon, 0247° / 40°0.11Light rain
47 °Light rain

Bannockburn, Monday, 2 November

Light rain. High 47°, low 40°.

Pressure30.09 inHg
Wind11.9 mph NW
Humidity93%
Visibility—
Dew point38°
Tue, 0353° / 38°0Clear
53 °Clear

Bannockburn, Tuesday, 3 November

Clear. High 53°, low 38°.

Pressure30.21 inHg
Wind9.3 mph W
Humidity43%
Visibility—
Dew point28°
Wed, 0455° / 41°0Clear
55 °Clear

Bannockburn, Wednesday, 4 November

Clear. High 55°, low 41°.

Pressure30.21 inHg
Wind8.8 mph NW
Humidity44%
Visibility—
Dew point31°
Thu, 0557° / 44°0Clear
57 °Clear

Bannockburn, Thursday, 5 November

Clear. High 57°, low 44°.

Pressure30.21 inHg
Wind9.8 mph SW
Humidity46%
Visibility—
Dew point34°
Fri, 0658° / 47°0Overcast
58 °Overcast

Bannockburn, Friday, 6 November

Overcast. High 58°, low 47°.

Pressure30.12 inHg
Wind9.9 mph SW
Humidity42%
Visibility—
Dew point33°
Sat, 0756° / 48°0Partly cloudy
56 °Partly cloudy

Bannockburn, Saturday, 7 November

Partly cloudy. High 56°, low 48°.

Pressure30.12 inHg
Wind6.8 mph E
Humidity50%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0849° / 41°0.06Climate normal
49 °Climate normal

Bannockburn, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high49°
Average low41°
Average precipitation0.06 in
Chance of precipitation17%
Record high72° (2020)
Record low18° (2019)
Mon, 0950° / 40°0.12Climate normal
50 °Climate normal

Bannockburn, Monday, 9 November

Climate normal for this date — 60-year average.

Average high50°
Average low40°
Average precipitation0.12 in
Chance of precipitation38%
Record high72° (2020)
Record low23° (2018)
Tue, 1049° / 40°0.11Climate normal
49 °Climate normal

Bannockburn, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high49°
Average low40°
Average precipitation0.11 in
Chance of precipitation37%
Record high72° (2022)
Record low18° (2017)
Wed, 1147° / 38°0.08Climate normal
47 °Climate normal

Bannockburn, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high47°
Average low38°
Average precipitation0.08 in
Chance of precipitation33%
Record high64° (1964)
Record low16° (2019)
Thu, 1245° / 36°0.06Climate normal
45 °Climate normal

Bannockburn, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°
Average low36°
Average precipitation0.06 in
Chance of precipitation20%
Record high63° (1964)
Record low7° (2019)
Fri, 1345° / 36°0.05Climate normal
45 °Climate normal

Bannockburn, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°
Average low36°
Average precipitation0.05 in
Chance of precipitation23%
Record high63° (1999)
Record low8° (2019)
Sat, 1446° / 37°0.07Climate normal
46 °Climate normal

Bannockburn, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high46°
Average low37°
Average precipitation0.07 in
Chance of precipitation30%
Record high64° (2025)
Record low18° (1986)
Sun, 1546° / 37°0.09Climate normal
46 °Climate normal

Bannockburn, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high46°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2025)
Record low20° (2019)
Mon, 1646° / 37°0.05Climate normal
46 °Climate normal

Bannockburn, Monday, 16 November

Climate normal for this date — 60-year average.

Average high46°
Average low37°
Average precipitation0.05 in
Chance of precipitation18%
Record high62° (2023)
Record low24° (1997)
Tue, 1746° / 37°0.09Climate normal
46 °Climate normal

Bannockburn, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high46°
Average low37°
Average precipitation0.09 in
Chance of precipitation25%
Record high63° (2016)
Record low18° (2014)
Wed, 1846° / 37°0.11Climate normal
46 °Climate normal

Bannockburn, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high46°
Average low37°
Average precipitation0.11 in
Chance of precipitation28%
Record high62° (2016)
Record low15° (2014)
Thu, 1946° / 37°0.07Climate normal
46 °Climate normal

Bannockburn, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high46°
Average low37°
Average precipitation0.07 in
Chance of precipitation32%
Record high63° (2020)
Record low16° (2018)
Fri, 2045° / 36°0.08Climate normal
45 °Climate normal

Bannockburn, Friday, 20 November

Climate normal for this date — 60-year average.

Average high45°
Average low36°
Average precipitation0.08 in
Chance of precipitation32%
Record high59° (2003)
Record low14° (2022)
Sat, 2143° / 35°0.11Climate normal
43 °Climate normal

Bannockburn, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high43°
Average low35°
Average precipitation0.11 in
Chance of precipitation25%
Record high61° (1990)
Record low14° (1964)

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 Bannockburn, 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 Bannockburn, 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.