Monthly outlook for Downers Grove, IL: average high 47.7°, average low 35.4°. That is 1.5° above the climate normal for November. Precipitation is expected on 0 days (about 0.1 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 November (59.9°), the coolest 26 November (29.2°).
47.7°/35.4°
Average high / low
+1.5°
Above normal
0 / 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
51.6°
46.5°
+2.8°
24 November – 3 December
41.3°
41.4°
-0.1°
4 December – 13 December
at normal
36.7°
—
November records over 66 years
74.8°5 November 1978All-time high
2.3°13 November 2019All-time low
Climate normals and records are computed from the nearest reference point — La Grange (7 mi).
Sun, 1550° / 31°0
50 °
Downers Grove, Sunday, 15 November
Clear. High 50°, low 31°.
Pressure30.45 inHg
Wind1.5 mph W
Humidity61%
Visibility6.2 mi
Dew point33°
Mon, 1649° / 31°0
49 °
Downers Grove, Monday, 16 November
Clear. High 49°, low 31°.
Pressure30.50 inHg
Wind6.2 mph SW
Humidity59%
Visibility6.2 mi
Dew point34°
Tue, 1752° / 34°0
52 °
Downers Grove, Tuesday, 17 November
Partly cloudy. High 52°, low 34°.
Pressure30.47 inHg
Wind6.6 mph SW
Humidity64%
Visibility6.2 mi
Dew point38°
Wed, 1855° / 38°0
55 °
Downers Grove, Wednesday, 18 November
Overcast. High 55°, low 38°.
Pressure30.33 inHg
Wind11 mph S
Humidity66%
Visibility—
Dew point39°
Thu, 1958° / 44°0.01
58 °
Downers Grove, Thursday, 19 November
Light rain. High 58°, low 44°.
Pressure30.18 inHg
Wind10.9 mph S
Humidity67%
Visibility—
Dew point45°
Fri, 2052° / 41°0
52 °
Downers Grove, Friday, 20 November
Clear. High 52°, low 41°.
Pressure30.33 inHg
Wind6.4 mph W
Humidity52%
Visibility—
Dew point32°
Sat, 2160° / 48°0.04
60 °
Downers Grove, Saturday, 21 November
Light rain. High 60°, low 48°.
Pressure30.06 inHg
Wind17.9 mph S
Humidity50%
Visibility—
Dew point38°
Sun, 2253° / 38°0.02
53 °
Downers Grove, Sunday, 22 November
Light rain. High 53°, low 38°.
Pressure30.03 inHg
Wind16 mph W
Humidity57%
Visibility—
Dew point28°
Mon, 2338° / 32°0
38 °
Downers Grove, Monday, 23 November
Overcast. High 38°, low 32°.
Pressure30.06 inHg
Wind14.9 mph W
Humidity56%
Visibility—
Dew point22°
Tue, 2442° / 31°0
42 °
Downers Grove, Tuesday, 24 November
Partly cloudy. High 42°, low 31°.
Pressure30.24 inHg
Wind7.2 mph NW
Humidity57%
Visibility—
Dew point25°
Wed, 2540° / 33°0.02
40 °
Downers Grove, Wednesday, 25 November
Light rain. High 40°, low 33°.
Pressure30.18 inHg
Wind9.7 mph N
Humidity75%
Visibility—
Dew point32°
Thu, 2638° / 29°0
38 °
Downers Grove, Thursday, 26 November
Clear. High 38°, low 29°.
Pressure30.47 inHg
Wind9.7 mph N
Humidity47%
Visibility—
Dew point17°
Fri, 2742° / 30°0
42 °
Downers Grove, Friday, 27 November
Clear. High 42°, low 30°.
Pressure30.27 inHg
Wind6.7 mph NE
Humidity34%
Visibility—
Dew point13°
Sat, 2844° / 37°0
44 °
Downers Grove, Saturday, 28 November
Overcast. High 44°, low 37°.
Pressure29.97 inHg
Wind9.4 mph NE
Humidity38%
Visibility—
Dew point19°
Sun, 2943° / 38°0
43 °
Downers Grove, Sunday, 29 November
Overcast. High 43°, low 38°.
Pressure30.06 inHg
Wind6.9 mph N
Humidity56%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 3042° / 29°0.09
42 °
Downers Grove, Monday, 30 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.09 in
Chance of precipitation28%
Record high65° (1998)
Record low12° (1976)
Tue, 0139° / 28°0.15
39 °
Downers Grove, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.15 in
Chance of precipitation40%
Record high64° (1970)
Record low11° (2025)
Wed, 0240° / 28°0.07
40 °
Downers Grove, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.07 in
Chance of precipitation33%
Record high68° (1982)
Record low9° (1976)
Thu, 0339° / 28°0.09
39 °
Downers Grove, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.09 in
Chance of precipitation33%
Record high68° (2012)
Record low6° (2006)
Fri, 0439° / 27°0.07
39 °
Downers Grove, Friday, 4 December
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.07 in
Chance of precipitation27%
Record high64° (1998)
Record low-2° (1991)
Sat, 0539° / 26°0.09
39 °
Downers Grove, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.09 in
Chance of precipitation32%
Record high66° (2001)
Record low-2° (1991)
Sun, 0637° / 25°0.07
37 °
Downers Grove, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.07 in
Chance of precipitation27%
Record high62° (1998)
Record low4° (2005)
Mon, 0735° / 25°0.13
35 °
Downers Grove, Monday, 7 December
Climate normal for this date — 60-year average.
Average high35°
Average low25°
Average precipitation0.13 in
Chance of precipitation27%
Record high57° (1980)
Record low-3° (1972)
Tue, 0836° / 26°0.08
36 °
Downers Grove, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high36°
Average low26°
Average precipitation0.08 in
Chance of precipitation28%
Record high63° (1991)
Record low2° (2006)
Wed, 0937° / 24°0.09
37 °
Downers Grove, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.09 in
Chance of precipitation40%
Record high53° (2023)
Record low-4° (1995)
Thu, 1036° / 24°0.09
36 °
Downers Grove, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.09 in
Chance of precipitation28%
Record high58° (1971)
Record low-7° (1978)
Fri, 1135° / 24°0.12
35 °
Downers Grove, Friday, 11 December
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.12 in
Chance of precipitation35%
Record high58° (2021)
Record low-11° (1972)
Sat, 1237° / 24°0.1
37 °
Downers Grove, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.1 in
Chance of precipitation33%
Record high60° (2015)
Record low-4° (2000)
Sun, 1337° / 24°0.06
37 °
Downers Grove, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.06 in
Chance of precipitation25%
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 Downers 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 Downers 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.