Monthly outlook for Gillum, IL: average high 49.2°, average low 34.7°. That is 1.3° above the climate normal for November. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 21 November (65°), the coolest 26 November (26°).
49.2°/34.7°
Average high / low
+1.3°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 November – 23 November
52.8°
48.5°
+2.4°
24 November – 3 December
43.3°
43.3°
-0°
4 December – 13 December
at normal
38.6°
—
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).
Sun, 1549° / 30°0
49 °
Gillum, Sunday, 15 November
Clear. High 49°, low 30°.
Pressure30.45 inHg
Wind0.7 mph NW
Humidity55%
Visibility6.2 mi
Dew point30°
Mon, 1651° / 31°0
51 °
Gillum, Monday, 16 November
Clear. High 51°, low 31°.
Pressure30.53 inHg
Wind5.2 mph SW
Humidity50%
Visibility6.2 mi
Dew point32°
Tue, 1753° / 33°0
53 °
Gillum, Tuesday, 17 November
Overcast. High 53°, low 33°.
Pressure30.50 inHg
Wind7.5 mph S
Humidity54%
Visibility6.2 mi
Dew point36°
Wed, 1857° / 38°0
57 °
Gillum, Wednesday, 18 November
Overcast. High 57°, low 38°.
Pressure30.33 inHg
Wind11.8 mph S
Humidity53%
Visibility—
Dew point36°
Thu, 1960° / 46°0
60 °
Gillum, Thursday, 19 November
Overcast. High 60°, low 46°.
Pressure30.24 inHg
Wind12 mph S
Humidity67%
Visibility—
Dew point44°
Fri, 2057° / 41°0
57 °
Gillum, Friday, 20 November
Partly cloudy. High 57°, low 41°.
Pressure30.30 inHg
Wind9.7 mph SE
Humidity45%
Visibility—
Dew point32°
Sat, 2165° / 48°0.01
65 °
Gillum, Saturday, 21 November
Light rain. High 65°, low 48°.
Pressure30.06 inHg
Wind20.6 mph S
Humidity57%
Visibility—
Dew point45°
Sun, 2250° / 40°0.01
50 °
Gillum, Sunday, 22 November
Light rain. High 50°, low 40°.
Pressure30.09 inHg
Wind19.6 mph W
Humidity50%
Visibility—
Dew point28°
Mon, 2340° / 33°0
40 °
Gillum, Monday, 23 November
Clear. High 40°, low 33°.
Pressure30.15 inHg
Wind18.1 mph W
Humidity48%
Visibility—
Dew point20°
Tue, 2444° / 28°0
44 °
Gillum, Tuesday, 24 November
Clear. High 44°, low 28°.
Pressure30.27 inHg
Wind5.8 mph NW
Humidity51%
Visibility—
Dew point23°
Wed, 2549° / 36°0.1
49 °
Gillum, Wednesday, 25 November
Light rain. High 49°, low 36°.
Pressure30.18 inHg
Wind11.3 mph N
Humidity42%
Visibility—
Dew point26°
Thu, 2638° / 26°0
38 °
Gillum, Thursday, 26 November
Clear. High 38°, low 26°.
Pressure30.47 inHg
Wind12 mph N
Humidity46%
Visibility—
Dew point17°
Fri, 2742° / 27°0
42 °
Gillum, Friday, 27 November
Overcast. High 42°, low 27°.
Pressure30.27 inHg
Wind10.2 mph NE
Humidity45%
Visibility—
Dew point19°
Sat, 2842° / 33°0
42 °
Gillum, Saturday, 28 November
Overcast. High 42°, low 33°.
Pressure29.94 inHg
Wind11.1 mph NE
Humidity45%
Visibility—
Dew point21°
Sun, 2945° / 37°0
45 °
Gillum, Sunday, 29 November
Overcast. High 45°, low 37°.
Pressure30.06 inHg
Wind5.7 mph N
Humidity54%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 1338° / 24°0.06
38 °
Gillum, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.06 in
Chance of precipitation27%
Record high62° (2015)
Record low-14° (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.