Monthly outlook for Loon Lake, IL: average high 52.2°, average low 41.4°. That is 2.1° above the climate normal for November. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 3 November (67.2°), the coolest 9 November (30.6°).
52.2°/41.4°
Average high / low
+2.1°
Above normal
5 / 4
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
2 November – 11 November
54.7°
50.1°
+2.5°
12 November – 21 November
47.9°
45.2°
+1.5°
22 November – 1 December
at normal
40.9°
—
November records over 66 years
73°8 November 2020All-time high
1.6°13 November 2019All-time low
Climate normals and records are computed from the nearest reference point — Round Lake Beach (5 mi).
Tue, 0367° / 60°0.18
67 °
Loon Lake, Tuesday, 3 November
Rain. High 67°, low 60°.
Pressure29.80 inHg
Wind15.3 mph S
Humidity82%
Visibility3.9 mi
Dew point61°
Wed, 0463° / 55°0.41
63 °
Loon Lake, Wednesday, 4 November
Heavy rain. High 63°, low 55°.
Pressure29.65 inHg
Wind14.9 mph SW
Humidity73%
Visibility6.2 mi
Dew point50°
Thu, 0555° / 51°0.02
55 °
Loon Lake, Thursday, 5 November
Light rain. High 55°, low 51°.
Pressure29.71 inHg
Wind13 mph SW
Humidity66%
Visibility6.2 mi
Dew point42°
Fri, 0654° / 49°0.11
54 °
Loon Lake, Friday, 6 November
Light rain. High 54°, low 49°.
Pressure29.88 inHg
Wind9.4 mph N
Humidity74%
Visibility6.2 mi
Dew point46°
Sat, 0752° / 46°0
52 °
Loon Lake, Saturday, 7 November
Overcast. High 52°, low 46°.
Pressure30.03 inHg
Wind9.7 mph N
Humidity67%
Visibility—
Dew point41°
Sun, 0847° / 40°0.27
47 °
Loon Lake, Sunday, 8 November
Light rain. High 47°, low 40°.
Pressure29.71 inHg
Wind15.8 mph W
Humidity92%
Visibility—
Dew point43°
Mon, 0945° / 31°0
45 °
Loon Lake, Monday, 9 November
Partly cloudy. High 45°, low 31°.
Pressure30.00 inHg
Wind9.6 mph NW
Humidity70%
Visibility—
Dew point32°
Tue, 1052° / 34°0
52 °
Loon Lake, Tuesday, 10 November
Clear. High 52°, low 34°.
Pressure30.00 inHg
Wind8.7 mph W
Humidity55%
Visibility—
Dew point33°
Wed, 1152° / 33°0
52 °
Loon Lake, Wednesday, 11 November
Clear. High 52°, low 33°.
Pressure30.03 inHg
Wind10.2 mph W
Humidity40%
Visibility—
Dew point25°
Thu, 1247° / 33°0
47 °
Loon Lake, Thursday, 12 November
Clear. High 47°, low 33°.
Pressure30.09 inHg
Wind10.4 mph N
Humidity51%
Visibility—
Dew point27°
Fri, 1349° / 32°0
49 °
Loon Lake, Friday, 13 November
Overcast. High 49°, low 32°.
Pressure30.03 inHg
Wind13.5 mph SW
Humidity41%
Visibility—
Dew point23°
Sat, 1447° / 35°0
47 °
Loon Lake, Saturday, 14 November
Clear. High 47°, low 35°.
Pressure30.12 inHg
Wind14.5 mph W
Humidity42%
Visibility—
Dew point23°
Sun, 1547° / 35°0
47 °
Loon Lake, Sunday, 15 November
Overcast. High 47°, low 35°.
Pressure30.15 inHg
Wind8.4 mph E
Humidity60%
Visibility—
Dew point33°
Mon, 1648° / 38°0
48 °
Loon Lake, Monday, 16 November
Clear. High 48°, low 38°.
Pressure30.24 inHg
Wind12.3 mph E
Humidity59%
Visibility—
Dew point33°
Tue, 1750° / 36°0
50 °
Loon Lake, Tuesday, 17 November
Clear. High 50°, low 36°.
Pressure30.27 inHg
Wind9.1 mph E
Humidity40%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1846° / 35°0.1
46 °
Loon 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)
Thu, 1946° / 35°0.07
46 °
Loon Lake, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.07 in
Chance of precipitation32%
Record high63° (1983)
Record low15° (2018)
Fri, 2044° / 33°0.07
44 °
Loon Lake, Friday, 20 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.07 in
Chance of precipitation35%
Record high61° (2003)
Record low13° (2022)
Sat, 2143° / 32°0.1
43 °
Loon Lake, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.1 in
Chance of precipitation25%
Record high64° (1990)
Record low11° (1964)
Sun, 2243° / 31°0.04
43 °
Loon Lake, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high62° (2010)
Record low14° (2015)
Mon, 2343° / 32°0.07
43 °
Loon Lake, Monday, 23 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.07 in
Chance of precipitation30%
Record high63° (2003)
Record low12° (1970)
Tue, 2442° / 30°0.08
42 °
Loon Lake, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.08 in
Chance of precipitation28%
Record high60° (1966)
Record low14° (2013)
Wed, 2542° / 32°0.09
42 °
Loon Lake, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.09 in
Chance of precipitation33%
Record high59° (1966)
Record low16° (2005)
Thu, 2642° / 31°0.12
42 °
Loon Lake, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.12 in
Chance of precipitation45%
Record high61° (1990)
Record low6° (1977)
Fri, 2741° / 31°0.21
41 °
Loon Lake, Friday, 27 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.21 in
Chance of precipitation50%
Record high63° (1990)
Record low15° (1977)
Sat, 2839° / 28°0.12
39 °
Loon Lake, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.12 in
Chance of precipitation35%
Record high62° (1990)
Record low4° (2018)
Sun, 2940° / 28°0.08
40 °
Loon Lake, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.08 in
Chance of precipitation37%
Record high63° (1998)
Record low7° (1976)
Mon, 3040° / 29°0.07
40 °
Loon Lake, Monday, 30 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.07 in
Chance of precipitation32%
Record high64° (1998)
Record low10° (1964)
Tue, 0138° / 27°0.14
38 °
Loon Lake, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.14 in
Chance of precipitation43%
Record high61° (1970)
Record low11° (2025)
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 Loon 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 Loon 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.