Monthly outlook for Evanston, IL: average high 64.2°, average low 53.9°. That is 4.1° above the climate normal for October. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 27 October (71.1°), the coolest 17 October (41.5°).
64.2°/53.9°
Average high / low
+4.1°
Above normal
6 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
64.2°
57.9°
+3.5°
25 October – 3 November
64.2°
54.1°
+5.6°
4 November – 13 November
at normal
49.3°
—
October records over 66 years
87.3°3 October 2025All-time high
28°31 October 2023All-time low
Fri, 1661° / 47°0.06
61 °
Evanston, Friday, 16 October
Light rain. High 61°, low 47°.
Pressure30.03 inHg
Wind14.2 mph NW
Humidity70%
Visibility6.2 mi
Dew point44°
Sat, 1755° / 42°0
55 °
Evanston, Saturday, 17 October
Clear. High 55°, low 42°.
Pressure30.53 inHg
Wind5.9 mph SW
Humidity51%
Visibility6.2 mi
Dew point34°
Sun, 1860° / 44°0
60 °
Evanston, Sunday, 18 October
Clear. High 60°, low 44°.
Pressure30.42 inHg
Wind12 mph SW
Humidity55%
Visibility6.2 mi
Dew point41°
Mon, 1962° / 45°0
62 °
Evanston, Monday, 19 October
Overcast. High 62°, low 45°.
Pressure30.33 inHg
Wind8.8 mph SW
Humidity60%
Visibility—
Dew point44°
Tue, 2065° / 49°0.01
65 °
Evanston, Tuesday, 20 October
Light rain. High 65°, low 49°.
Pressure30.33 inHg
Wind4.7 mph SE
Humidity60%
Visibility—
Dew point48°
Wed, 2164° / 55°0
64 °
Evanston, Wednesday, 21 October
Clear. High 64°, low 55°.
Pressure30.36 inHg
Wind7.2 mph E
Humidity46%
Visibility—
Dew point42°
Thu, 2269° / 57°0
69 °
Evanston, Thursday, 22 October
Clear. High 69°, low 57°.
Pressure30.24 inHg
Wind6.9 mph S
Humidity43%
Visibility—
Dew point44°
Fri, 2369° / 61°0
69 °
Evanston, Friday, 23 October
Overcast. High 69°, low 61°.
Pressure30.27 inHg
Wind14.1 mph SE
Humidity48%
Visibility—
Dew point46°
Sat, 2469° / 59°0
69 °
Evanston, Saturday, 24 October
Overcast. High 69°, low 59°.
Pressure30.18 inHg
Wind14.1 mph SE
Humidity50%
Visibility—
Dew point46°
Sun, 2563° / 54°0
63 °
Evanston, Sunday, 25 October
Clear. High 63°, low 54°.
Pressure30.53 inHg
Wind12.7 mph N
Humidity49%
Visibility—
Dew point39°
Mon, 2660° / 53°0
60 °
Evanston, Monday, 26 October
Overcast. High 60°, low 53°.
Pressure30.50 inHg
Wind12.4 mph SE
Humidity58%
Visibility—
Dew point42°
Tue, 2771° / 60°0.21
71 °
Evanston, Tuesday, 27 October
Rain. High 71°, low 60°.
Pressure30.09 inHg
Wind14.3 mph SW
Humidity48%
Visibility—
Dew point48°
Wed, 2861° / 60°0.37
61 °
Evanston, Wednesday, 28 October
Rain. High 61°, low 60°.
Pressure30.00 inHg
Wind13.1 mph SW
Humidity89%
Visibility—
Dew point56°
Thu, 2963° / 60°0.06
63 °
Evanston, Thursday, 29 October
Light rain. High 63°, low 60°.
Pressure29.94 inHg
Wind9.3 mph S
Humidity89%
Visibility—
Dew point58°
Fri, 3068° / 62°0.43
68 °
Evanston, Friday, 30 October
Light rain. High 68°, low 62°.
Pressure29.71 inHg
Wind19 mph SW
Humidity95%
Visibility—
Dew point62°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3155° / 45°0.14
55 °
Evanston, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low45°
Average precipitation0.14 in
Chance of precipitation40%
Record high72° (2024)
Record low28° (2023)
Sun, 0154° / 44°0.16
54 °
Evanston, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.16 in
Chance of precipitation45%
Record high69° (2016)
Record low21° (2019)
Mon, 0253° / 43°0.13
53 °
Evanston, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.13 in
Chance of precipitation40%
Record high69° (1961)
Record low26° (1991)
Tue, 0352° / 42°0.06
52 °
Evanston, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.06 in
Chance of precipitation20%
Record high70° (2022)
Record low20° (1991)
Wed, 0452° / 43°0.09
52 °
Evanston, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2022)
Record low18° (1991)
Thu, 0552° / 42°0.12
52 °
Evanston, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.12 in
Chance of precipitation33%
Record high69° (1978)
Record low22° (1991)
Fri, 0651° / 40°0.07
51 °
Evanston, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.07 in
Chance of precipitation30%
Record high70° (2020)
Record low25° (1991)
Sat, 0750° / 41°0.06
50 °
Evanston, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2020)
Record low23° (1991)
Sun, 0850° / 41°0.06
50 °
Evanston, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.06 in
Chance of precipitation18%
Record high73° (2020)
Record low19° (1991)
Mon, 0951° / 41°0.12
51 °
Evanston, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.12 in
Chance of precipitation38%
Record high73° (2020)
Record low23° (1991)
Tue, 1049° / 40°0.11
49 °
Evanston, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.11 in
Chance of precipitation33%
Record high73° (2020)
Record low19° (2018)
Wed, 1147° / 38°0.08
47 °
Evanston, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.08 in
Chance of precipitation32%
Record high66° (1964)
Record low18° (2019)
Thu, 1246° / 37°0.06
46 °
Evanston, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.06 in
Chance of precipitation23%
Record high65° (1964)
Record low8° (2019)
Fri, 1346° / 36°0.05
46 °
Evanston, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.05 in
Chance of precipitation18%
Record high64° (1999)
Record low9° (2019)
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 Evanston, 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 Evanston, 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.