Monthly outlook for North Chicago, IL: average high 59.6°, average low 49.4°. That is 3.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 22 October (73.6°), the coolest 23 October (45.8°).
59.6°/49.4°
Average high / low
+3.4°
Above normal
4 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
63.3°
54.8°
+4.7°
1 November – 10 November
53.5°
50.6°
+1.6°
11 November – 20 November
at normal
45.5°
—
October records over 66 years
84.7°1 October 2019All-time high
28.6°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Park City (3 mi).
Fri, 2371° / 46°0
71 °
North Chicago, Friday, 23 October
Overcast. High 71°, low 46°.
Pressure30.33 inHg
Wind5.6 mph S
Humidity53%
Visibility6.2 mi
Dew point50°
Sat, 2466° / 50°0
66 °
North Chicago, Saturday, 24 October
Overcast. High 66°, low 50°.
Pressure30.39 inHg
Wind5.9 mph S
Humidity64%
Visibility6.2 mi
Dew point51°
Sun, 2571° / 53°0
71 °
North Chicago, Sunday, 25 October
Partly cloudy. High 71°, low 53°.
Pressure30.39 inHg
Wind5.7 mph SW
Humidity54%
Visibility6.2 mi
Dew point51°
Mon, 2661° / 53°0
61 °
North Chicago, Monday, 26 October
Overcast. High 61°, low 53°.
Pressure30.42 inHg
Wind9.6 mph NE
Humidity72%
Visibility—
Dew point51°
Tue, 2759° / 54°0.07
59 °
North Chicago, Tuesday, 27 October
Light rain. High 59°, low 54°.
Pressure30.36 inHg
Wind9.4 mph NE
Humidity71%
Visibility—
Dew point49°
Wed, 2854° / 52°0.02
54 °
North Chicago, Wednesday, 28 October
Light rain. High 54°, low 52°.
Pressure30.18 inHg
Wind6.1 mph N
Humidity82%
Visibility—
Dew point49°
Thu, 2956° / 49°0.05
56 °
North Chicago, Thursday, 29 October
Light rain. High 56°, low 49°.
Pressure30.18 inHg
Wind6.8 mph E
Humidity67%
Visibility—
Dew point45°
Fri, 3060° / 53°0.21
60 °
North Chicago, Friday, 30 October
Light rain. High 60°, low 53°.
Pressure29.85 inHg
Wind11.5 mph SW
Humidity82%
Visibility—
Dew point53°
Sat, 3160° / 51°0.68
60 °
North Chicago, Saturday, 31 October
Rain. High 60°, low 51°.
Pressure29.71 inHg
Wind13.7 mph SW
Humidity94%
Visibility—
Dew point55°
Sun, 0161° / 48°0
61 °
North Chicago, Sunday, 1 November
Clear. High 61°, low 48°.
Pressure29.94 inHg
Wind9.2 mph W
Humidity48%
Visibility—
Dew point39°
Mon, 0253° / 48°0
53 °
North Chicago, Monday, 2 November
Overcast. High 53°, low 48°.
Pressure30.21 inHg
Wind14.6 mph NE
Humidity55%
Visibility—
Dew point37°
Tue, 0352° / 46°0
52 °
North Chicago, Tuesday, 3 November
Overcast. High 52°, low 46°.
Pressure30.42 inHg
Wind10.7 mph NE
Humidity50%
Visibility—
Dew point33°
Wed, 0450° / 47°0
50 °
North Chicago, Wednesday, 4 November
Overcast. High 50°, low 47°.
Pressure30.47 inHg
Wind16.6 mph E
Humidity59%
Visibility—
Dew point36°
Thu, 0553° / 46°0
53 °
North Chicago, Thursday, 5 November
Overcast. High 53°, low 46°.
Pressure30.39 inHg
Wind16.2 mph E
Humidity46%
Visibility—
Dew point30°
Fri, 0651° / 47°0
51 °
North Chicago, Friday, 6 November
Overcast. High 51°, low 47°.
Pressure30.21 inHg
Wind8.5 mph SE
Humidity76%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0750° / 40°0.05
50 °
North Chicago, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.05 in
Chance of precipitation17%
Record high68° (2020)
Record low19° (1991)
Sun, 0849° / 40°0.06
49 °
North Chicago, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.06 in
Chance of precipitation17%
Record high70° (2020)
Record low18° (2019)
Mon, 0950° / 40°0.12
50 °
North Chicago, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.12 in
Chance of precipitation38%
Record high72° (2020)
Record low23° (1991)
Tue, 1048° / 39°0.11
48 °
North Chicago, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.11 in
Chance of precipitation38%
Record high72° (2022)
Record low18° (2017)
Wed, 1146° / 37°0.08
46 °
North Chicago, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.08 in
Chance of precipitation33%
Record high65° (1964)
Record low16° (2019)
Thu, 1245° / 36°0.06
45 °
North Chicago, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.06 in
Chance of precipitation20%
Record high63° (1964)
Record low7° (2019)
Fri, 1345° / 36°0.05
45 °
North Chicago, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.05 in
Chance of precipitation23%
Record high65° (1999)
Record low10° (2019)
Sat, 1446° / 36°0.07
46 °
North Chicago, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.07 in
Chance of precipitation27%
Record high64° (1971)
Record low17° (1986)
Sun, 1546° / 37°0.09
46 °
North Chicago, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2025)
Record low21° (2019)
Mon, 1646° / 36°0.05
46 °
North Chicago, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.05 in
Chance of precipitation18%
Record high61° (2023)
Record low23° (1997)
Tue, 1746° / 37°0.09
46 °
North Chicago, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.09 in
Chance of precipitation27%
Record high64° (2016)
Record low17° (2014)
Wed, 1846° / 37°0.11
46 °
North Chicago, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.11 in
Chance of precipitation28%
Record high62° (2016)
Record low14° (2014)
Thu, 1946° / 36°0.07
46 °
North Chicago, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.07 in
Chance of precipitation32%
Record high63° (2020)
Record low19° (2022)
Fri, 2044° / 35°0.08
44 °
North Chicago, Friday, 20 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.08 in
Chance of precipitation32%
Record high60° (2003)
Record low14° (2022)
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 North Chicago, 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 North Chicago, 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.