Monthly outlook for Utopia, IL: average high 65.7°, average low 51.3°. That is 1.9° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 12 October (78.5°), the coolest 18 October (39.9°).
65.7°/51.3°
Average high / low
+1.9°
Above normal
5 / 5
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 October – 15 October
70.9°
63.9°
+3.9°
16 October – 25 October
57.1°
59.1°
-1.1°
26 October – 4 November
at normal
55.3°
—
October records over 66 years
87.6°3 October 2025All-time high
24.8°26 October 1962All-time low
Climate normals and records are computed from the nearest reference point — La Grange Park (5 mi).
Wed, 0777° / 56°0
77 °
Utopia, Wednesday, 7 October
Clear. High 77°, low 56°.
Pressure29.85 inHg
Wind5.9 mph W
Humidity73%
Visibility6.2 mi
Dew point61°
Thu, 0869° / 52°0
69 °
Utopia, Thursday, 8 October
Mostly clear. High 69°, low 52°.
Pressure30.09 inHg
Wind5.8 mph NW
Humidity49%
Visibility6.2 mi
Dew point44°
Fri, 0969° / 49°0.08
69 °
Utopia, Friday, 9 October
Rain. High 69°, low 49°.
Pressure30.18 inHg
Wind6.2 mph SE
Humidity58%
Visibility6.0 mi
Dew point49°
Sat, 1078° / 60°0
78 °
Utopia, Saturday, 10 October
Clear. High 78°, low 60°.
Pressure30.06 inHg
Wind7.6 mph S
Humidity59%
Visibility6.2 mi
Dew point58°
Sun, 1166° / 59°0.06
66 °
Utopia, Sunday, 11 October
Light rain. High 66°, low 59°.
Pressure29.83 inHg
Wind9.7 mph NE
Humidity81%
Visibility—
Dew point58°
Mon, 1278° / 54°0
78 °
Utopia, Monday, 12 October
Overcast. High 78°, low 54°.
Pressure29.85 inHg
Wind7.9 mph SW
Humidity62%
Visibility—
Dew point58°
Tue, 1364° / 58°0.19
64 °
Utopia, Tuesday, 13 October
Rain. High 64°, low 58°.
Pressure30.00 inHg
Wind9.2 mph NE
Humidity78%
Visibility—
Dew point53°
Wed, 1463° / 55°0.09
63 °
Utopia, Wednesday, 14 October
Light rain. High 63°, low 55°.
Pressure30.00 inHg
Wind9.6 mph SE
Humidity78%
Visibility—
Dew point51°
Thu, 1571° / 54°1.56
71 °
Utopia, Thursday, 15 October
Heavy rain. High 71°, low 54°.
Pressure29.65 inHg
Wind15.3 mph S
Humidity90%
Visibility—
Dew point66°
Fri, 1657° / 47°0
57 °
Utopia, Friday, 16 October
Clear. High 57°, low 47°.
Pressure30.09 inHg
Wind15.2 mph W
Humidity32%
Visibility—
Dew point26°
Sat, 1747° / 43°0
47 °
Utopia, Saturday, 17 October
Partly cloudy. High 47°, low 43°.
Pressure30.12 inHg
Wind12.5 mph NW
Humidity49%
Visibility—
Dew point28°
Sun, 1854° / 40°0
54 °
Utopia, Sunday, 18 October
Mostly clear. High 54°, low 40°.
Pressure30.15 inHg
Wind11.3 mph SW
Humidity45%
Visibility—
Dew point30°
Mon, 1961° / 47°0
61 °
Utopia, Monday, 19 October
Mostly clear. High 61°, low 47°.
Pressure30.06 inHg
Wind9.2 mph SW
Humidity41%
Visibility—
Dew point35°
Tue, 2058° / 49°0
58 °
Utopia, Tuesday, 20 October
Overcast. High 58°, low 49°.
Pressure30.27 inHg
Wind7.7 mph E
Humidity54%
Visibility—
Dew point40°
Wed, 2164° / 50°0
64 °
Utopia, Wednesday, 21 October
Overcast. High 64°, low 50°.
Pressure30.21 inHg
Wind5.9 mph SE
Humidity47%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2260° / 45°0.12
60 °
Utopia, Thursday, 22 October
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.12 in
Chance of precipitation28%
Record high79° (1963)
Record low29° (1976)
Fri, 2359° / 45°0.12
59 °
Utopia, Friday, 23 October
Climate normal for this date — 60-year average.
Average high59°
Average low45°
Average precipitation0.12 in
Chance of precipitation33%
Record high79° (1963)
Record low31° (1976)
Sat, 2458° / 45°0.11
58 °
Utopia, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.11 in
Chance of precipitation40%
Record high79° (1963)
Record low25° (1981)
Sun, 2557° / 44°0.12
57 °
Utopia, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.12 in
Chance of precipitation32%
Record high75° (1963)
Record low31° (1962)
Mon, 2656° / 44°0.11
56 °
Utopia, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.11 in
Chance of precipitation32%
Record high79° (1963)
Record low25° (1962)
Tue, 2756° / 43°0.1
56 °
Utopia, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.1 in
Chance of precipitation37%
Record high75° (2014)
Record low29° (1980)
Wed, 2856° / 43°0.06
56 °
Utopia, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.06 in
Chance of precipitation20%
Record high74° (1999)
Record low28° (1976)
Thu, 2956° / 42°0.06
56 °
Utopia, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.06 in
Chance of precipitation20%
Record high79° (2024)
Record low28° (1980)
Fri, 3058° / 43°0.12
58 °
Utopia, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.12 in
Chance of precipitation28%
Record high77° (1971)
Record low27° (1988)
Sat, 3156° / 44°0.13
56 °
Utopia, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.13 in
Chance of precipitation42%
Record high74° (1974)
Record low26° (2023)
Sun, 0155° / 42°0.18
55 °
Utopia, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.18 in
Chance of precipitation42%
Record high74° (2016)
Record low19° (2019)
Mon, 0254° / 41°0.12
54 °
Utopia, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.12 in
Chance of precipitation40%
Record high74° (1961)
Record low24° (1991)
Tue, 0353° / 40°0.07
53 °
Utopia, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.07 in
Chance of precipitation27%
Record high73° (1987)
Record low18° (1991)
Wed, 0453° / 42°0.09
53 °
Utopia, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.09 in
Chance of precipitation27%
Record high71° (2015)
Record low17° (1991)
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 Utopia, 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 Utopia, 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.