Monthly outlook for Sugar Grove, IL: average high 43.9°, average low 31.9°. That is 1.2° below the climate normal for November. Precipitation is expected on 4 days (about 3.3 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 11 November (54.9°), the coolest 24 November (17.9°).
43.9°/31.9°
Average high / low
−1.2°
Below normal
4 / 4
Wet days / normal
3.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 November – 20 November
47.5°
47.3°
+0.1°
21 November – 30 November
38.1°
42.9°
-2.7°
1 December – 10 December
at normal
37.5°
—
November records over 66 years
75.4°5 November 1978All-time high
2.1°13 November 2019All-time low
Climate normals and records are computed from the nearest reference point — Boulder Hill (7 mi).
Thu, 1245° / 35°0
45 °
Sugar Grove, Thursday, 12 November
Overcast. High 45°, low 35°.
Pressure29.97 inHg
Wind16.9 mph N
Humidity65%
Visibility6.2 mi
Dew point27°
Fri, 1342° / 31°0
42 °
Sugar Grove, Friday, 13 November
Partly cloudy. High 42°, low 31°.
Pressure30.06 inHg
Wind14.8 mph N
Humidity64%
Visibility6.2 mi
Dew point24°
Sat, 1442° / 28°0
42 °
Sugar Grove, Saturday, 14 November
Clear. High 42°, low 28°.
Pressure30.24 inHg
Wind7.3 mph NW
Humidity65%
Visibility6.2 mi
Dew point26°
Sun, 1547° / 28°0
47 °
Sugar Grove, Sunday, 15 November
Clear. High 47°, low 28°.
Pressure30.39 inHg
Wind4.3 mph N
Humidity58%
Visibility—
Dew point30°
Mon, 1648° / 31°0
48 °
Sugar Grove, Monday, 16 November
Mostly clear. High 48°, low 31°.
Pressure30.47 inHg
Wind4.9 mph E
Humidity59%
Visibility—
Dew point31°
Tue, 1748° / 36°0
48 °
Sugar Grove, Tuesday, 17 November
Partly cloudy. High 48°, low 36°.
Pressure30.42 inHg
Wind6.4 mph SE
Humidity53%
Visibility—
Dew point29°
Wed, 1850° / 34°0
50 °
Sugar Grove, Wednesday, 18 November
Clear. High 50°, low 34°.
Pressure30.30 inHg
Wind10.7 mph S
Humidity51%
Visibility—
Dew point29°
Thu, 1948° / 39°0.01
48 °
Sugar Grove, Thursday, 19 November
Light rain. High 48°, low 39°.
Pressure30.06 inHg
Wind13.9 mph S
Humidity64%
Visibility—
Dew point33°
Fri, 2049° / 46°1.44
49 °
Sugar Grove, Friday, 20 November
Rain. High 49°, low 46°.
Pressure30.03 inHg
Wind10.4 mph E
Humidity99%
Visibility—
Dew point47°
Sat, 2149° / 38°1.56
49 °
Sugar Grove, Saturday, 21 November
Heavy rain. High 49°, low 38°.
Pressure29.65 inHg
Wind18.9 mph N
Humidity97%
Visibility—
Dew point47°
Sun, 2237° / 28°0.01
37 °
Sugar Grove, Sunday, 22 November
Light rain. High 37°, low 28°.
Pressure30.03 inHg
Wind18.5 mph N
Humidity70%
Visibility—
Dew point26°
Mon, 2329° / 21°0.14
29 °
Sugar Grove, Monday, 23 November
Light snow. High 29°, low 21°.
Pressure30.09 inHg
Wind19.8 mph NW
Humidity77%
Visibility—
Dew point22°
Tue, 2431° / 18°0
31 °
Sugar Grove, Tuesday, 24 November
Mostly clear. High 31°, low 18°.
Pressure30.30 inHg
Wind13 mph SW
Humidity45%
Visibility—
Dew point9°
Wed, 2538° / 25°0
38 °
Sugar Grove, Wednesday, 25 November
Overcast. High 38°, low 25°.
Pressure30.09 inHg
Wind10.5 mph SW
Humidity69%
Visibility—
Dew point27°
Thu, 2644° / 32°0
44 °
Sugar Grove, Thursday, 26 November
Clear. High 44°, low 32°.
Pressure30.09 inHg
Wind9.9 mph W
Humidity79%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2742° / 30°0.21
42 °
Sugar Grove, Friday, 27 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.21 in
Chance of precipitation48%
Record high65° (1990)
Record low12° (1977)
Sat, 2840° / 28°0.12
40 °
Sugar Grove, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.12 in
Chance of precipitation25%
Record high64° (1998)
Record low2° (2018)
Sun, 2941° / 28°0.07
41 °
Sugar Grove, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.07 in
Chance of precipitation32%
Record high66° (1998)
Record low7° (1976)
Mon, 3041° / 28°0.08
41 °
Sugar Grove, Monday, 30 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.08 in
Chance of precipitation28%
Record high65° (1998)
Record low10° (1964)
Tue, 0139° / 27°0.15
39 °
Sugar Grove, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.15 in
Chance of precipitation38%
Record high64° (1970)
Record low11° (1971)
Wed, 0240° / 27°0.06
40 °
Sugar Grove, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.06 in
Chance of precipitation28%
Record high69° (1982)
Record low7° (2006)
Thu, 0339° / 27°0.08
39 °
Sugar Grove, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.08 in
Chance of precipitation28%
Record high69° (2012)
Record low4° (2006)
Fri, 0438° / 26°0.06
38 °
Sugar Grove, Friday, 4 December
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation25%
Record high65° (1998)
Record low-4° (1991)
Sat, 0539° / 25°0.07
39 °
Sugar Grove, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.07 in
Chance of precipitation27%
Record high67° (2001)
Record low-5° (1991)
Sun, 0637° / 24°0.06
37 °
Sugar Grove, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.06 in
Chance of precipitation23%
Record high62° (1998)
Record low-1° (1964)
Mon, 0735° / 24°0.12
35 °
Sugar Grove, Monday, 7 December
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.12 in
Chance of precipitation27%
Record high56° (1980)
Record low-7° (1972)
Tue, 0836° / 24°0.07
36 °
Sugar Grove, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.07 in
Chance of precipitation27%
Record high63° (1991)
Record low-3° (2006)
Wed, 0937° / 23°0.08
37 °
Sugar Grove, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.08 in
Chance of precipitation38%
Record high53° (1990)
Record low-5° (1977)
Thu, 1035° / 22°0.09
35 °
Sugar Grove, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.09 in
Chance of precipitation25%
Record high58° (2015)
Record low-11° (1978)
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 Sugar Grove, 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 Sugar Grove, 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.