Monthly outlook for Willow Lake, IL: average high 54.6°, average low 44.2°. That is 2.3° above the climate normal for October. Precipitation is expected on 9 days (about 4.4 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 29 October (67.1°), the coolest 7 November (32.9°).
54.6°/44.2°
Average high / low
+2.3°
Above normal
9 / 4
Wet days / normal
4.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
59.6°
52.5°
+3.9°
8 November – 17 November
46.3°
46.7°
-0.2°
18 November – 27 November
at normal
42.8°
—
October records over 66 years
86.4°3 October 2025All-time high
21.4°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Freeport (3 mi).
Fri, 3058° / 40°0.1
58 °
Willow Lake, Friday, 30 October
Light rain. High 58°, low 40°.
Pressure30.36 inHg
Wind6.4 mph E
Humidity62%
Visibility6.2 mi
Dew point41°
Sat, 3156° / 49°0.56
56 °
Willow Lake, Saturday, 31 October
Heavy rain. High 56°, low 49°.
Pressure30.30 inHg
Wind7.4 mph SE
Humidity95%
Visibility3.3 mi
Dew point51°
Sun, 0166° / 45°0
66 °
Willow Lake, Sunday, 1 November
Clear. High 66°, low 45°.
Pressure30.27 inHg
Wind7.2 mph E
Humidity70%
Visibility6.2 mi
Dew point50°
Mon, 0263° / 58°0.73
63 °
Willow Lake, Monday, 2 November
Rain. High 63°, low 58°.
Pressure29.97 inHg
Wind20.8 mph S
Humidity83%
Visibility—
Dew point55°
Tue, 0363° / 57°1.15
63 °
Willow Lake, Tuesday, 3 November
Rain. High 63°, low 57°.
Pressure29.94 inHg
Wind16.2 mph SW
Humidity71%
Visibility—
Dew point50°
Wed, 0462° / 60°0.48
62 °
Willow Lake, Wednesday, 4 November
Rain. High 62°, low 60°.
Pressure29.77 inHg
Wind14.9 mph SE
Humidity94%
Visibility—
Dew point60°
Thu, 0562° / 55°0.66
62 °
Willow Lake, Thursday, 5 November
Rain. High 62°, low 55°.
Pressure29.56 inHg
Wind10 mph NW
Humidity96%
Visibility—
Dew point58°
Fri, 0652° / 40°0.05
52 °
Willow Lake, Friday, 6 November
Light rain. High 52°, low 40°.
Pressure29.94 inHg
Wind17 mph N
Humidity78%
Visibility—
Dew point38°
Sat, 0747° / 33°0
47 °
Willow Lake, Saturday, 7 November
Clear. High 47°, low 33°.
Pressure30.30 inHg
Wind9.6 mph NE
Humidity62%
Visibility—
Dew point32°
Sun, 0849° / 37°0
49 °
Willow Lake, Sunday, 8 November
Overcast. High 49°, low 37°.
Pressure30.24 inHg
Wind4.9 mph NE
Humidity66%
Visibility—
Dew point35°
Mon, 0949° / 40°0.28
49 °
Willow Lake, Monday, 9 November
Rain. High 49°, low 40°.
Pressure29.94 inHg
Wind9.9 mph SE
Humidity67%
Visibility—
Dew point38°
Tue, 1045° / 38°0.41
45 °
Willow Lake, Tuesday, 10 November
Light rain. High 45°, low 38°.
Pressure29.68 inHg
Wind17.9 mph NW
Humidity84%
Visibility—
Dew point37°
Wed, 1145° / 34°0
45 °
Willow Lake, Wednesday, 11 November
Mostly clear. High 45°, low 34°.
Pressure29.71 inHg
Wind13.9 mph W
Humidity63%
Visibility—
Dew point32°
Thu, 1245° / 39°0
45 °
Willow Lake, Thursday, 12 November
Overcast. High 45°, low 39°.
Pressure29.85 inHg
Wind14.2 mph NW
Humidity78%
Visibility—
Dew point35°
Fri, 1344° / 33°0
44 °
Willow Lake, Friday, 13 November
Mostly clear. High 44°, low 33°.
Pressure29.97 inHg
Wind10.2 mph W
Humidity60%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1446° / 32°0.06
46 °
Willow Lake, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation32%
Record high67° (2025)
Record low14° (1986)
Sun, 1546° / 33°0.07
46 °
Willow Lake, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation27%
Record high68° (2025)
Record low9° (1995)
Mon, 1646° / 32°0.06
46 °
Willow Lake, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation20%
Record high62° (1988)
Record low17° (2019)
Tue, 1746° / 33°0.11
46 °
Willow Lake, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation22%
Record high70° (2016)
Record low14° (2005)
Wed, 1846° / 33°0.08
46 °
Willow Lake, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.08 in
Chance of precipitation28%
Record high67° (1999)
Record low11° (2014)
Thu, 1946° / 32°0.05
46 °
Willow Lake, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.05 in
Chance of precipitation25%
Record high63° (1983)
Record low11° (1986)
Fri, 2044° / 32°0.09
44 °
Willow Lake, Friday, 20 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.09 in
Chance of precipitation35%
Record high62° (1982)
Record low13° (2022)
Sat, 2143° / 29°0.09
43 °
Willow Lake, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.09 in
Chance of precipitation23%
Record high65° (1990)
Record low8° (1964)
Sun, 2243° / 29°0.04
43 °
Willow Lake, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.04 in
Chance of precipitation15%
Record high65° (2010)
Record low2° (2015)
Mon, 2343° / 30°0.09
43 °
Willow Lake, Monday, 23 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.09 in
Chance of precipitation28%
Record high62° (1966)
Record low11° (1970)
Tue, 2441° / 29°0.07
41 °
Willow Lake, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.07 in
Chance of precipitation23%
Record high61° (1966)
Record low9° (1985)
Wed, 2542° / 29°0.07
42 °
Willow Lake, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.07 in
Chance of precipitation30%
Record high56° (1966)
Record low7° (1977)
Thu, 2642° / 28°0.11
42 °
Willow Lake, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.11 in
Chance of precipitation33%
Record high64° (1990)
Record low-3° (1977)
Fri, 2740° / 28°0.16
40 °
Willow Lake, Friday, 27 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.16 in
Chance of precipitation50%
Record high64° (1990)
Record low8° (1993)
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 Willow 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 Willow 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.