Monthly outlook for Druce Lake, IL: average high 58.1°, average low 43.2°. That is 1.8° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 October (71.6°), the coolest 30 October (28.7°).
58.1°/43.2°
Average high / low
+1.8°
Above normal
4 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
60.7°
56°
+2.6°
30 October – 8 November
53.8°
51.9°
+1°
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 (4 mi).
Wed, 2172° / 43°0
72 °
Druce Lake, Wednesday, 21 October
Clear. High 72°, low 43°.
Pressure30.27 inHg
Wind4.9 mph SW
Humidity55%
Visibility6.2 mi
Dew point48°
Thu, 2267° / 47°0.01
67 °
Druce Lake, Thursday, 22 October
Light rain. High 67°, low 47°.
Pressure30.27 inHg
Wind3.1 mph NE
Humidity67%
Visibility6.2 mi
Dew point55°
Fri, 2366° / 54°0
66 °
Druce Lake, Friday, 23 October
Clear. High 66°, low 54°.
Pressure30.36 inHg
Wind4.2 mph SE
Humidity64%
Visibility6.2 mi
Dew point53°
Sat, 2466° / 50°0
66 °
Druce Lake, Saturday, 24 October
Overcast. High 66°, low 50°.
Pressure30.36 inHg
Wind8.7 mph S
Humidity64%
Visibility6.2 mi
Dew point50°
Sun, 2569° / 54°0
69 °
Druce Lake, Sunday, 25 October
Overcast. High 69°, low 54°.
Pressure30.33 inHg
Wind7.4 mph S
Humidity59%
Visibility—
Dew point51°
Mon, 2658° / 49°0.02
58 °
Druce Lake, Monday, 26 October
Light rain. High 58°, low 49°.
Pressure30.21 inHg
Wind12.8 mph NE
Humidity72%
Visibility—
Dew point49°
Tue, 2747° / 45°0.29
47 °
Druce Lake, Tuesday, 27 October
Light rain. High 47°, low 45°.
Pressure30.33 inHg
Wind13.6 mph NE
Humidity88%
Visibility—
Dew point42°
Wed, 2848° / 40°0.39
48 °
Druce Lake, Wednesday, 28 October
Rain. High 48°, low 40°.
Pressure30.00 inHg
Wind18 mph NW
Humidity92%
Visibility—
Dew point43°
Thu, 2944° / 34°0
44 °
Druce Lake, Thursday, 29 October
Mostly clear. High 44°, low 34°.
Pressure30.21 inHg
Wind13.5 mph NW
Humidity51%
Visibility—
Dew point26°
Fri, 3047° / 29°0
47 °
Druce Lake, Friday, 30 October
Clear. High 47°, low 29°.
Pressure30.27 inHg
Wind8 mph S
Humidity42%
Visibility—
Dew point21°
Sat, 3152° / 42°0
52 °
Druce Lake, Saturday, 31 October
Overcast. High 52°, low 42°.
Pressure29.97 inHg
Wind15.8 mph S
Humidity40%
Visibility—
Dew point26°
Sun, 0162° / 50°0.07
62 °
Druce Lake, Sunday, 1 November
Light rain. High 62°, low 50°.
Pressure29.77 inHg
Wind16.4 mph S
Humidity83%
Visibility—
Dew point52°
Mon, 0262° / 40°0.16
62 °
Druce Lake, Monday, 2 November
Light rain. High 62°, low 40°.
Pressure30.09 inHg
Wind18.7 mph NW
Humidity44%
Visibility—
Dew point31°
Tue, 0349° / 34°0
49 °
Druce Lake, Tuesday, 3 November
Clear. High 49°, low 34°.
Pressure30.47 inHg
Wind6.7 mph W
Humidity35%
Visibility—
Dew point20°
Wed, 0450° / 40°0
50 °
Druce Lake, Wednesday, 4 November
Overcast. High 50°, low 40°.
Pressure30.27 inHg
Wind12.3 mph SW
Humidity51%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0551° / 40°0.12
51 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 °
Druce Lake, 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 Druce Lake, 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 Druce Lake, 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.