Monthly outlook for Gillum, IL: average high 46.7°, average low 32.5°. That is 0.3° below the climate normal for November. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 21 November (65.9°), the coolest 25 November (18.2°).
46.7°/32.5°
Average high / low
−0.3°
Below normal
2 / 5
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
53.1°
48.7°
+2.5°
23 November – 2 December
35.9°
43.8°
-4.4°
3 December – 12 December
at normal
38.9°
—
November records over 66 years
77°1 November 2016All-time high
5.4°26 November 1977All-time low
Climate normals and records are computed from the nearest reference point — Bloomington (6 mi).
Sat, 1445° / 29°0
45 °
Gillum, Saturday, 14 November
Clear. High 45°, low 29°.
Pressure30.30 inHg
Wind5.1 mph NW
Humidity60%
Visibility6.2 mi
Dew point26°
Sun, 1548° / 30°0
48 °
Gillum, Sunday, 15 November
Mostly clear. High 48°, low 30°.
Pressure30.47 inHg
Wind1.4 mph NW
Humidity56%
Visibility6.2 mi
Dew point30°
Mon, 1651° / 32°0
51 °
Gillum, Monday, 16 November
Clear. High 51°, low 32°.
Pressure30.53 inHg
Wind5.5 mph SW
Humidity51%
Visibility6.2 mi
Dew point32°
Tue, 1752° / 34°0
52 °
Gillum, Tuesday, 17 November
Overcast. High 52°, low 34°.
Pressure30.50 inHg
Wind8.3 mph S
Humidity56%
Visibility—
Dew point34°
Wed, 1857° / 37°0
57 °
Gillum, Wednesday, 18 November
Partly cloudy. High 57°, low 37°.
Pressure30.33 inHg
Wind12.8 mph S
Humidity54%
Visibility—
Dew point36°
Thu, 1953° / 47°0.04
53 °
Gillum, Thursday, 19 November
Light rain. High 53°, low 47°.
Pressure30.21 inHg
Wind13.3 mph SW
Humidity79%
Visibility—
Dew point45°
Fri, 2060° / 46°0
60 °
Gillum, Friday, 20 November
Overcast. High 60°, low 46°.
Pressure30.36 inHg
Wind7.9 mph SE
Humidity59%
Visibility—
Dew point42°
Sat, 2166° / 51°0.1
66 °
Gillum, Saturday, 21 November
Light rain. High 66°, low 51°.
Pressure29.83 inHg
Wind29.2 mph S
Humidity47%
Visibility—
Dew point43°
Sun, 2256° / 37°0.03
56 °
Gillum, Sunday, 22 November
Light rain. High 56°, low 37°.
Pressure30.09 inHg
Wind19.3 mph SW
Humidity53%
Visibility—
Dew point29°
Mon, 2340° / 29°0
40 °
Gillum, Monday, 23 November
Clear. High 40°, low 29°.
Pressure30.27 inHg
Wind15.3 mph N
Humidity35%
Visibility—
Dew point13°
Tue, 2427° / 21°0
27 °
Gillum, Tuesday, 24 November
Partly cloudy. High 27°, low 21°.
Pressure30.27 inHg
Wind17.3 mph NW
Humidity35%
Visibility—
Dew point2°
Wed, 2529° / 18°0
29 °
Gillum, Wednesday, 25 November
Clear. High 29°, low 18°.
Pressure30.15 inHg
Wind15.9 mph NW
Humidity35%
Visibility—
Dew point3°
Thu, 2634° / 18°0
34 °
Gillum, Thursday, 26 November
Partly cloudy. High 34°, low 18°.
Pressure30.15 inHg
Wind16.3 mph SW
Humidity35%
Visibility—
Dew point5°
Fri, 2741° / 26°0
41 °
Gillum, Friday, 27 November
Overcast. High 41°, low 26°.
Pressure30.30 inHg
Wind10.3 mph S
Humidity33%
Visibility—
Dew point11°
Sat, 2846° / 31°0
46 °
Gillum, Saturday, 28 November
Overcast. High 46°, low 31°.
Pressure30.21 inHg
Wind12.3 mph SW
Humidity39%
Visibility—
Dew point20°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2943° / 30°0.06
43 °
Gillum, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.06 in
Chance of precipitation30%
Record high66° (1998)
Record low8° (1972)
Mon, 3043° / 29°0.11
43 °
Gillum, Monday, 30 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.11 in
Chance of precipitation30%
Record high64° (1998)
Record low9° (1964)
Tue, 0141° / 28°0.14
41 °
Gillum, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.14 in
Chance of precipitation37%
Record high65° (1970)
Record low9° (1985)
Wed, 0242° / 28°0.06
42 °
Gillum, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.06 in
Chance of precipitation28%
Record high69° (1982)
Record low9° (1985)
Thu, 0341° / 28°0.1
41 °
Gillum, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.1 in
Chance of precipitation32%
Record high69° (2012)
Record low7° (1985)
Fri, 0440° / 28°0.08
40 °
Gillum, Friday, 4 December
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.08 in
Chance of precipitation23%
Record high68° (1998)
Record low-1° (1991)
Sat, 0541° / 26°0.07
41 °
Gillum, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.07 in
Chance of precipitation28%
Record high66° (2001)
Record low2° (2025)
Sun, 0639° / 26°0.06
39 °
Gillum, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.06 in
Chance of precipitation27%
Record high64° (1980)
Record low-1° (1964)
Mon, 0738° / 25°0.1
38 °
Gillum, Monday, 7 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.1 in
Chance of precipitation28%
Record high60° (1966)
Record low-8° (1972)
Tue, 0838° / 26°0.06
38 °
Gillum, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation27%
Record high65° (1991)
Record low-1° (2006)
Wed, 0938° / 25°0.07
38 °
Gillum, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.07 in
Chance of precipitation33%
Record high55° (1965)
Record low-7° (1977)
Thu, 1038° / 24°0.09
38 °
Gillum, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.09 in
Chance of precipitation20%
Record high60° (2021)
Record low-10° (1977)
Fri, 1138° / 24°0.11
38 °
Gillum, Friday, 11 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.11 in
Chance of precipitation33%
Record high62° (2021)
Record low-12° (1972)
Sat, 1238° / 25°0.08
38 °
Gillum, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.08 in
Chance of precipitation27%
Record high66° (2015)
Record low-7° (2000)
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 Gillum, 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 Gillum, 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.