Monthly outlook for Tower Lakes, IL: average high 59.4°, average low 42.7°. That is 2.5° above the climate normal for October. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 22 October (73.9°), the coolest 30 October (35°).
59.4°/42.7°
Average high / low
+2.5°
Above normal
3 / 5
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
63°
56°
+3.9°
30 October – 8 November
53.4°
51.9°
+0.8°
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 (11 mi).
Wed, 2172° / 42°0
72 °
Tower Lakes, Wednesday, 21 October
Clear. High 72°, low 42°.
Pressure30.24 inHg
Wind4.4 mph SW
Humidity51%
Visibility6.2 mi
Dew point47°
Thu, 2274° / 44°0
74 °
Tower Lakes, Thursday, 22 October
Clear. High 74°, low 44°.
Pressure30.27 inHg
Wind3 mph E
Humidity61%
Visibility6.2 mi
Dew point53°
Fri, 2367° / 55°0
67 °
Tower Lakes, Friday, 23 October
Clear. High 67°, low 55°.
Pressure30.36 inHg
Wind3.6 mph SE
Humidity72%
Visibility6.2 mi
Dew point55°
Sat, 2466° / 50°0
66 °
Tower Lakes, Saturday, 24 October
Overcast. High 66°, low 50°.
Pressure30.36 inHg
Wind7.8 mph S
Humidity65%
Visibility6.2 mi
Dew point51°
Sun, 2570° / 52°0
70 °
Tower Lakes, Sunday, 25 October
Overcast. High 70°, low 52°.
Pressure30.36 inHg
Wind7.7 mph S
Humidity59%
Visibility—
Dew point50°
Mon, 2668° / 43°0.11
68 °
Tower Lakes, Monday, 26 October
Light rain. High 68°, low 43°.
Pressure30.18 inHg
Wind13 mph N
Humidity59%
Visibility—
Dew point51°
Tue, 2747° / 38°0.07
47 °
Tower Lakes, Tuesday, 27 October
Light rain. High 47°, low 38°.
Pressure30.39 inHg
Wind13.9 mph N
Humidity56%
Visibility—
Dew point31°
Wed, 2848° / 38°0
48 °
Tower Lakes, Wednesday, 28 October
Overcast. High 48°, low 38°.
Pressure30.30 inHg
Wind7.5 mph N
Humidity50%
Visibility—
Dew point28°
Thu, 2951° / 35°0
51 °
Tower Lakes, Thursday, 29 October
Clear. High 51°, low 35°.
Pressure30.21 inHg
Wind8.7 mph NW
Humidity46%
Visibility—
Dew point29°
Fri, 3053° / 35°0
53 °
Tower Lakes, Friday, 30 October
Clear. High 53°, low 35°.
Pressure30.24 inHg
Wind6.2 mph SE
Humidity41%
Visibility—
Dew point27°
Sat, 3158° / 41°0
58 °
Tower Lakes, Saturday, 31 October
Clear. High 58°, low 41°.
Pressure30.00 inHg
Wind15 mph S
Humidity41%
Visibility—
Dew point31°
Sun, 0153° / 47°0.06
53 °
Tower Lakes, Sunday, 1 November
Light rain. High 53°, low 47°.
Pressure29.94 inHg
Wind11.9 mph SW
Humidity86%
Visibility—
Dew point46°
Mon, 0256° / 43°0
56 °
Tower Lakes, Monday, 2 November
Clear. High 56°, low 43°.
Pressure30.12 inHg
Wind12.8 mph NW
Humidity36%
Visibility—
Dew point29°
Tue, 0348° / 35°0
48 °
Tower Lakes, Tuesday, 3 November
Overcast. High 48°, low 35°.
Pressure30.33 inHg
Wind7.5 mph NW
Humidity44%
Visibility—
Dew point25°
Wed, 0452° / 43°0.01
52 °
Tower Lakes, Wednesday, 4 November
Light rain. High 52°, low 43°.
Pressure30.18 inHg
Wind8.6 mph E
Humidity56%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0551° / 40°0.12
51 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 °
Tower Lakes, 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 Tower Lakes, 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 Tower Lakes, 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.