Monthly outlook for Evanston, IL: average high 63.2°, average low 54°. That is 3.2° above the climate normal for October. Precipitation is expected on 8 days (about 2.5 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 13 October (79.9°), the coolest 17 October (41.2°).
63.2°/54°
Average high / low
+3.2°
Above normal
8 / 5
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
65.1°
58.7°
+3.5°
23 October – 1 November
60.1°
55.1°
+2.8°
2 November – 11 November
at normal
50.6°
—
October records over 66 years
87.3°3 October 2025All-time high
28°31 October 2023All-time low
Wed, 1473° / 63°0.28
73 °
Evanston, Wednesday, 14 October
Rain. High 73°, low 63°.
Pressure30.09 inHg
Wind8.5 mph NE
Humidity71%
Visibility6.2 mi
Dew point57°
Thu, 1565° / 58°1.36
65 °
Evanston, Thursday, 15 October
Heavy rain. High 65°, low 58°.
Pressure30.00 inHg
Wind9.5 mph SE
Humidity95%
Visibility1.2 mi
Dew point59°
Fri, 1659° / 48°0.05
59 °
Evanston, Friday, 16 October
Light rain. High 59°, low 48°.
Pressure30.03 inHg
Wind17.4 mph NW
Humidity63%
Visibility3.9 mi
Dew point40°
Sat, 1755° / 41°0
55 °
Evanston, Saturday, 17 October
Clear. High 55°, low 41°.
Pressure30.47 inHg
Wind11.8 mph N
Humidity48%
Visibility—
Dew point33°
Sun, 1862° / 45°0
62 °
Evanston, Sunday, 18 October
Clear. High 62°, low 45°.
Pressure30.27 inHg
Wind13.4 mph SW
Humidity57%
Visibility—
Dew point42°
Mon, 1961° / 52°0.05
61 °
Evanston, Monday, 19 October
Light rain. High 61°, low 52°.
Pressure30.18 inHg
Wind10.3 mph SW
Humidity74%
Visibility—
Dew point51°
Tue, 2060° / 56°0.06
60 °
Evanston, Tuesday, 20 October
Light rain. High 60°, low 56°.
Pressure30.30 inHg
Wind8.1 mph SE
Humidity91%
Visibility—
Dew point55°
Wed, 2166° / 58°0.06
66 °
Evanston, Wednesday, 21 October
Light rain. High 66°, low 58°.
Pressure30.24 inHg
Wind9 mph SE
Humidity76%
Visibility—
Dew point57°
Thu, 2270° / 63°0.54
70 °
Evanston, Thursday, 22 October
Rain. High 70°, low 63°.
Pressure30.00 inHg
Wind15.7 mph S
Humidity70%
Visibility—
Dew point59°
Fri, 2375° / 63°0
75 °
Evanston, Friday, 23 October
Overcast. High 75°, low 63°.
Pressure29.85 inHg
Wind21.1 mph S
Humidity49%
Visibility—
Dew point54°
Sat, 2460° / 51°0
60 °
Evanston, Saturday, 24 October
Overcast. High 60°, low 51°.
Pressure30.27 inHg
Wind14.9 mph W
Humidity39%
Visibility—
Dew point34°
Sun, 2560° / 52°0
60 °
Evanston, Sunday, 25 October
Mostly clear. High 60°, low 52°.
Pressure30.21 inHg
Wind11.5 mph SW
Humidity32%
Visibility—
Dew point28°
Mon, 2653° / 46°0
53 °
Evanston, Monday, 26 October
Partly cloudy. High 53°, low 46°.
Pressure30.18 inHg
Wind17.3 mph NW
Humidity46%
Visibility—
Dew point31°
Tue, 2753° / 49°0.02
53 °
Evanston, Tuesday, 27 October
Light rain. High 53°, low 49°.
Pressure30.30 inHg
Wind11.7 mph SE
Humidity52%
Visibility—
Dew point34°
Wed, 2859° / 50°0.07
59 °
Evanston, Wednesday, 28 October
Light rain. High 59°, low 50°.
Pressure30.06 inHg
Wind13 mph S
Humidity38%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2954° / 45°0.06
54 °
Evanston, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.06 in
Chance of precipitation22%
Record high79° (2024)
Record low31° (1988)
Fri, 3055° / 46°0.11
55 °
Evanston, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low46°
Average precipitation0.11 in
Chance of precipitation30%
Record high77° (2024)
Record low32° (1988)
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)
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.