Monthly outlook for Sugar Grove, IL: average high 44.1°, average low 30.6°. That is 0.7° below the climate normal for November. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 21 November (63.6°), the coolest 28 November (19.3°).
44.1°/30.6°
Average high / low
−0.7°
Below normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
52.1°
46.8°
+2.9°
23 November – 2 December
30.7°
41.8°
-6.2°
3 December – 12 December
at normal
36.7°
—
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).
Sat, 1448° / 32°0
48 °
Sugar Grove, Saturday, 14 November
Clear. High 48°, low 32°.
Pressure30.27 inHg
Wind7.4 mph NW
Humidity63%
Visibility6.2 mi
Dew point30°
Sun, 1547° / 29°0
47 °
Sugar Grove, Sunday, 15 November
Clear. High 47°, low 29°.
Pressure30.45 inHg
Wind2.8 mph NW
Humidity56%
Visibility6.2 mi
Dew point29°
Mon, 1650° / 29°0
50 °
Sugar Grove, Monday, 16 November
Clear. High 50°, low 29°.
Pressure30.53 inHg
Wind8 mph SW
Humidity52%
Visibility6.2 mi
Dew point32°
Tue, 1753° / 33°0
53 °
Sugar Grove, Tuesday, 17 November
Overcast. High 53°, low 33°.
Pressure30.47 inHg
Wind8.2 mph SW
Humidity58%
Visibility6.2 mi
Dew point37°
Wed, 1856° / 35°0
56 °
Sugar Grove, Wednesday, 18 November
Partly cloudy. High 56°, low 35°.
Pressure30.33 inHg
Wind12.4 mph S
Humidity58%
Visibility—
Dew point36°
Thu, 1954° / 46°0.02
54 °
Sugar Grove, Thursday, 19 November
Light rain. High 54°, low 46°.
Pressure30.18 inHg
Wind13 mph S
Humidity85%
Visibility—
Dew point46°
Fri, 2053° / 41°0
53 °
Sugar Grove, Friday, 20 November
Overcast. High 53°, low 41°.
Pressure30.39 inHg
Wind7.6 mph SE
Humidity63%
Visibility—
Dew point38°
Sat, 2164° / 46°0.08
64 °
Sugar Grove, Saturday, 21 November
Light rain. High 64°, low 46°.
Pressure29.77 inHg
Wind29.2 mph S
Humidity60%
Visibility—
Dew point47°
Sun, 2253° / 34°0
53 °
Sugar Grove, Sunday, 22 November
Overcast. High 53°, low 34°.
Pressure30.06 inHg
Wind21.8 mph SW
Humidity56%
Visibility—
Dew point28°
Mon, 2334° / 27°0
34 °
Sugar Grove, Monday, 23 November
Overcast. High 34°, low 27°.
Pressure30.33 inHg
Wind12.9 mph N
Humidity56%
Visibility—
Dew point20°
Tue, 2428° / 22°0
28 °
Sugar Grove, Tuesday, 24 November
Mostly clear. High 28°, low 22°.
Pressure30.21 inHg
Wind16.1 mph NW
Humidity39%
Visibility—
Dew point4°
Wed, 2527° / 22°0
27 °
Sugar Grove, Wednesday, 25 November
Mostly clear. High 27°, low 22°.
Pressure30.09 inHg
Wind15.5 mph NW
Humidity37%
Visibility—
Dew point4°
Thu, 2632° / 20°0
32 °
Sugar Grove, Thursday, 26 November
Partly cloudy. High 32°, low 20°.
Pressure30.06 inHg
Wind19.1 mph SW
Humidity39%
Visibility—
Dew point7°
Fri, 2731° / 22°0
31 °
Sugar Grove, Friday, 27 November
Overcast. High 31°, low 22°.
Pressure29.94 inHg
Wind16.1 mph SW
Humidity42%
Visibility—
Dew point10°
Sat, 2832° / 19°0
32 °
Sugar Grove, Saturday, 28 November
Mostly clear. High 32°, low 19°.
Pressure30.12 inHg
Wind9.3 mph W
Humidity26%
Visibility—
Dew point-2°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 1135° / 22°0.1
35 °
Sugar Grove, Friday, 11 December
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.1 in
Chance of precipitation28%
Record high59° (2021)
Record low-17° (1972)
Sat, 1236° / 22°0.09
36 °
Sugar Grove, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.09 in
Chance of precipitation27%
Record high62° (2015)
Record low-8° (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 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.