Monthly outlook for Carbon Cliff, IL: average high 58.4°, average low 46.1°. That is 2.4° above the climate normal for October. Precipitation is expected on 8 days (about 3.2 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (75.5°), the coolest 7 November (28.3°).
58.4°/46.1°
Average high / low
+2.4°
Above normal
8 / 4
Wet days / normal
3.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
66°
55.6°
+5.8°
5 November – 14 November
45.7°
50°
-2.4°
15 November – 24 November
at normal
46.4°
—
October records over 66 years
88.3°3 October 2025All-time high
18.3°30 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Panorama Park (5 mi).
Tue, 2771° / 50°0
71 °
Carbon Cliff, Tuesday, 27 October
Overcast. High 71°, low 50°.
Pressure30.21 inHg
Wind4.9 mph SE
Humidity69%
Visibility6.2 mi
Dew point53°
Wed, 2876° / 55°0
76 °
Carbon Cliff, Wednesday, 28 October
Partly cloudy. High 76°, low 55°.
Pressure30.15 inHg
Wind6.9 mph S
Humidity60%
Visibility6.2 mi
Dew point54°
Thu, 2968° / 54°0.07
68 °
Carbon Cliff, Thursday, 29 October
Light rain. High 68°, low 54°.
Pressure30.09 inHg
Wind7 mph W
Humidity83%
Visibility6.2 mi
Dew point60°
Fri, 3065° / 46°0.12
65 °
Carbon Cliff, Friday, 30 October
Light rain. High 65°, low 46°.
Pressure30.21 inHg
Wind5.7 mph E
Humidity66%
Visibility6.2 mi
Dew point49°
Sat, 3165° / 56°0.33
65 °
Carbon Cliff, Saturday, 31 October
Rain. High 65°, low 56°.
Pressure30.12 inHg
Wind6.1 mph S
Humidity81%
Visibility—
Dew point58°
Sun, 0165° / 55°0.11
65 °
Carbon Cliff, Sunday, 1 November
Light rain. High 65°, low 55°.
Pressure29.97 inHg
Wind7 mph N
Humidity71%
Visibility—
Dew point54°
Mon, 0260° / 52°0.03
60 °
Carbon Cliff, Monday, 2 November
Light rain. High 60°, low 52°.
Pressure29.83 inHg
Wind17.5 mph E
Humidity75%
Visibility—
Dew point51°
Tue, 0362° / 56°1.01
62 °
Carbon Cliff, Tuesday, 3 November
Rain. High 62°, low 56°.
Pressure29.77 inHg
Wind21.3 mph E
Humidity91%
Visibility—
Dew point59°
Wed, 0461° / 50°1.31
61 °
Carbon Cliff, Wednesday, 4 November
Heavy rain. High 61°, low 50°.
Pressure29.47 inHg
Wind27.4 mph W
Humidity79%
Visibility—
Dew point47°
Thu, 0548° / 35°0.06
48 °
Carbon Cliff, Thursday, 5 November
Light rain. High 48°, low 35°.
Pressure29.59 inHg
Wind25.5 mph NW
Humidity75%
Visibility—
Dew point33°
Fri, 0638° / 31°0.02
38 °
Carbon Cliff, Friday, 6 November
Light snow. High 38°, low 31°.
Pressure29.88 inHg
Wind20.6 mph NW
Humidity63%
Visibility—
Dew point26°
Sat, 0741° / 28°0
41 °
Carbon Cliff, Saturday, 7 November
Clear. High 41°, low 28°.
Pressure30.15 inHg
Wind11.7 mph NW
Humidity43%
Visibility—
Dew point18°
Sun, 0847° / 31°0
47 °
Carbon Cliff, Sunday, 8 November
Overcast. High 47°, low 31°.
Pressure30.06 inHg
Wind15.2 mph S
Humidity46%
Visibility—
Dew point23°
Mon, 0952° / 47°0.18
52 °
Carbon Cliff, Monday, 9 November
Light rain. High 52°, low 47°.
Pressure29.62 inHg
Wind15.9 mph S
Humidity94%
Visibility—
Dew point47°
Tue, 1048° / 40°0
48 °
Carbon Cliff, Tuesday, 10 November
Overcast. High 48°, low 40°.
Pressure29.77 inHg
Wind10.7 mph NW
Humidity62%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1148° / 33°0.06
48 °
Carbon Cliff, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation27%
Record high72° (1964)
Record low14° (2019)
Thu, 1247° / 33°0.06
47 °
Carbon Cliff, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.06 in
Chance of precipitation27%
Record high66° (1964)
Record low6° (2019)
Fri, 1347° / 33°0.05
47 °
Carbon Cliff, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.05 in
Chance of precipitation22%
Record high73° (1999)
Record low6° (1986)
Sat, 1448° / 33°0.06
48 °
Carbon Cliff, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation28%
Record high71° (2025)
Record low14° (1986)
Sun, 1548° / 34°0.07
48 °
Carbon Cliff, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.07 in
Chance of precipitation25%
Record high69° (2025)
Record low16° (2019)
Mon, 1648° / 34°0.06
48 °
Carbon Cliff, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.06 in
Chance of precipitation25%
Record high67° (1971)
Record low17° (1997)
Tue, 1749° / 34°0.13
49 °
Carbon Cliff, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.13 in
Chance of precipitation25%
Record high73° (2016)
Record low14° (2005)
Wed, 1848° / 35°0.07
48 °
Carbon Cliff, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation32%
Record high70° (1999)
Record low11° (2014)
Thu, 1948° / 34°0.06
48 °
Carbon Cliff, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.06 in
Chance of precipitation27%
Record high66° (1979)
Record low17° (2022)
Fri, 2046° / 33°0.1
46 °
Carbon Cliff, Friday, 20 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.1 in
Chance of precipitation33%
Record high65° (2003)
Record low16° (2022)
Sat, 2145° / 31°0.08
45 °
Carbon Cliff, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.08 in
Chance of precipitation25%
Record high66° (1990)
Record low8° (1964)
Sun, 2245° / 30°0.03
45 °
Carbon Cliff, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.03 in
Chance of precipitation15%
Record high67° (2010)
Record low2° (2015)
Mon, 2345° / 31°0.08
45 °
Carbon Cliff, Monday, 23 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.08 in
Chance of precipitation27%
Record high65° (1966)
Record low11° (1970)
Tue, 2444° / 30°0.09
44 °
Carbon Cliff, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.09 in
Chance of precipitation23%
Record high64° (1966)
Record low8° (1985)
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 Carbon Cliff, 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 Carbon Cliff, 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.