Monthly outlook for Wauconda, IL: average high 56.9°, average low 40.6°. That is 1.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 October (71.4°), the coolest 28 October (28.1°).
56.9°/40.6°
Average high / low
+1.1°
Above normal
2 / 5
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
60.5°
56°
+2.5°
30 October – 8 November
50.9°
51.9°
-0.6°
9 November – 18 November
at normal
46.4°
—
October records over 66 years
86.9°3 October 2025All-time high
26.1°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Round Lake Beach (8 mi).
Wed, 2171° / 43°0
71 °
Wauconda, Wednesday, 21 October
Clear. High 71°, low 43°.
Pressure30.27 inHg
Wind3.8 mph SW
Humidity54%
Visibility6.2 mi
Dew point48°
Thu, 2267° / 47°0
67 °
Wauconda, Thursday, 22 October
Mostly clear. High 67°, low 47°.
Pressure30.30 inHg
Wind4.9 mph E
Humidity68%
Visibility6.2 mi
Dew point55°
Fri, 2364° / 48°0
64 °
Wauconda, Friday, 23 October
Clear. High 64°, low 48°.
Pressure30.36 inHg
Wind4.9 mph SE
Humidity72%
Visibility6.2 mi
Dew point52°
Sat, 2466° / 47°0
66 °
Wauconda, Saturday, 24 October
Clear. High 66°, low 47°.
Pressure30.36 inHg
Wind8.7 mph S
Humidity67%
Visibility6.2 mi
Dew point50°
Sun, 2568° / 53°0
68 °
Wauconda, Sunday, 25 October
Overcast. High 68°, low 53°.
Pressure30.36 inHg
Wind8.3 mph SW
Humidity67%
Visibility—
Dew point52°
Mon, 2666° / 38°0.31
66 °
Wauconda, Monday, 26 October
Rain. High 66°, low 38°.
Pressure30.03 inHg
Wind14.3 mph N
Humidity53%
Visibility—
Dew point47°
Tue, 2745° / 34°0.03
45 °
Wauconda, Tuesday, 27 October
Light rain. High 45°, low 34°.
Pressure30.39 inHg
Wind14.5 mph NW
Humidity45%
Visibility—
Dew point23°
Wed, 2845° / 28°0
45 °
Wauconda, Wednesday, 28 October
Clear. High 45°, low 28°.
Pressure30.36 inHg
Wind11.8 mph SW
Humidity35%
Visibility—
Dew point16°
Thu, 2947° / 36°0
47 °
Wauconda, Thursday, 29 October
Clear. High 47°, low 36°.
Pressure30.06 inHg
Wind12.5 mph W
Humidity48%
Visibility—
Dew point27°
Fri, 3042° / 31°0
42 °
Wauconda, Friday, 30 October
Clear. High 42°, low 31°.
Pressure30.39 inHg
Wind14.7 mph NW
Humidity45%
Visibility—
Dew point20°
Sat, 3147° / 29°0
47 °
Wauconda, Saturday, 31 October
Partly cloudy. High 47°, low 29°.
Pressure30.24 inHg
Wind14 mph SW
Humidity41%
Visibility—
Dew point22°
Sun, 0149° / 41°0
49 °
Wauconda, Sunday, 1 November
Overcast. High 49°, low 41°.
Pressure30.09 inHg
Wind11.3 mph SW
Humidity83%
Visibility—
Dew point42°
Mon, 0257° / 37°0
57 °
Wauconda, Monday, 2 November
Clear. High 57°, low 37°.
Pressure30.30 inHg
Wind7.9 mph SW
Humidity59%
Visibility—
Dew point39°
Tue, 0359° / 45°0
59 °
Wauconda, Tuesday, 3 November
Overcast. High 59°, low 45°.
Pressure30.18 inHg
Wind14 mph S
Humidity50%
Visibility—
Dew point38°
Wed, 0453° / 50°0.43
53 °
Wauconda, Wednesday, 4 November
Rain. High 53°, low 50°.
Pressure29.91 inHg
Wind14.4 mph S
Humidity94%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0551° / 40°0.12
51 °
Wauconda, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.12 in
Chance of precipitation28%
Record high71° (1978)
Record low20° (1991)
Fri, 0651° / 38°0.09
51 °
Wauconda, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.09 in
Chance of precipitation30%
Record high70° (2020)
Record low22° (1991)
Sat, 0750° / 38°0.05
50 °
Wauconda, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.05 in
Chance of precipitation18%
Record high68° (2020)
Record low14° (1991)
Sun, 0850° / 38°0.04
50 °
Wauconda, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.04 in
Chance of precipitation18%
Record high73° (2020)
Record low15° (1991)
Mon, 0950° / 38°0.11
50 °
Wauconda, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.11 in
Chance of precipitation33%
Record high73° (2020)
Record low20° (1991)
Tue, 1049° / 37°0.11
49 °
Wauconda, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.11 in
Chance of precipitation38%
Record high72° (2022)
Record low16° (2017)
Wed, 1146° / 35°0.08
46 °
Wauconda, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.08 in
Chance of precipitation35%
Record high67° (1964)
Record low15° (2019)
Thu, 1245° / 34°0.06
45 °
Wauconda, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high64° (1964)
Record low3° (2019)
Fri, 1345° / 33°0.05
45 °
Wauconda, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation25%
Record high67° (1999)
Record low2° (2019)
Sat, 1446° / 34°0.07
46 °
Wauconda, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high66° (1971)
Record low15° (1986)
Sun, 1546° / 35°0.08
46 °
Wauconda, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.08 in
Chance of precipitation28%
Record high68° (2025)
Record low17° (2019)
Mon, 1646° / 34°0.05
46 °
Wauconda, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.05 in
Chance of precipitation17%
Record high62° (1988)
Record low21° (1997)
Tue, 1746° / 35°0.1
46 °
Wauconda, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.1 in
Chance of precipitation28%
Record high68° (2016)
Record low15° (2014)
Wed, 1846° / 35°0.1
46 °
Wauconda, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.1 in
Chance of precipitation28%
Record high64° (1975)
Record low12° (2014)
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 Wauconda, 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 Wauconda, 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.