Monthly outlook for Brookfield, IL: average high 66.2°, average low 53.6°. That is 4.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 23 October (74.1°), the coolest 17 October (38.7°).
66.2°/53.6°
Average high / low
+4.4°
Above normal
5 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
66.1°
59.5°
+3.7°
25 October – 3 November
66.4°
55.6°
+6°
4 November – 13 November
at normal
50.5°
—
October records over 66 years
89.2°3 October 2025All-time high
25.5°26 October 1962All-time low
Fri, 1661° / 45°0.06
61 °
Brookfield, Friday, 16 October
Light rain. High 61°, low 45°.
Pressure30.06 inHg
Wind11.1 mph NW
Humidity72%
Visibility6.2 mi
Dew point43°
Sat, 1755° / 39°0
55 °
Brookfield, Saturday, 17 October
Clear. High 55°, low 39°.
Pressure30.53 inHg
Wind4.8 mph W
Humidity51%
Visibility6.2 mi
Dew point34°
Sun, 1861° / 42°0
61 °
Brookfield, Sunday, 18 October
Clear. High 61°, low 42°.
Pressure30.45 inHg
Wind11.5 mph SW
Humidity55%
Visibility6.2 mi
Dew point41°
Mon, 1962° / 44°0
62 °
Brookfield, Monday, 19 October
Overcast. High 62°, low 44°.
Pressure30.36 inHg
Wind7.9 mph S
Humidity58%
Visibility—
Dew point44°
Tue, 2066° / 48°0
66 °
Brookfield, Tuesday, 20 October
Partly cloudy. High 66°, low 48°.
Pressure30.33 inHg
Wind3.8 mph SW
Humidity57%
Visibility—
Dew point47°
Wed, 2171° / 53°0
71 °
Brookfield, Wednesday, 21 October
Clear. High 71°, low 53°.
Pressure30.33 inHg
Wind4.2 mph E
Humidity30%
Visibility—
Dew point35°
Thu, 2272° / 56°0
72 °
Brookfield, Thursday, 22 October
Clear. High 72°, low 56°.
Pressure30.24 inHg
Wind6.6 mph SW
Humidity36%
Visibility—
Dew point40°
Fri, 2374° / 60°0
74 °
Brookfield, Friday, 23 October
Overcast. High 74°, low 60°.
Pressure30.24 inHg
Wind10 mph SE
Humidity30%
Visibility—
Dew point38°
Sat, 2473° / 60°0
73 °
Brookfield, Saturday, 24 October
Overcast. High 73°, low 60°.
Pressure30.18 inHg
Wind10.5 mph S
Humidity43%
Visibility—
Dew point44°
Sun, 2563° / 56°0
63 °
Brookfield, Sunday, 25 October
Clear. High 63°, low 56°.
Pressure30.50 inHg
Wind8.8 mph N
Humidity30%
Visibility—
Dew point30°
Mon, 2665° / 53°0
65 °
Brookfield, Monday, 26 October
Overcast. High 65°, low 53°.
Pressure30.47 inHg
Wind7.8 mph SE
Humidity43%
Visibility—
Dew point38°
Tue, 2773° / 61°0.09
73 °
Brookfield, Tuesday, 27 October
Light rain. High 73°, low 61°.
Pressure30.09 inHg
Wind12.3 mph SW
Humidity40%
Visibility—
Dew point46°
Wed, 2862° / 60°0.2
62 °
Brookfield, Wednesday, 28 October
Light rain. High 62°, low 60°.
Pressure30.00 inHg
Wind9.3 mph SW
Humidity85%
Visibility—
Dew point56°
Thu, 2964° / 61°0.02
64 °
Brookfield, Thursday, 29 October
Light rain. High 64°, low 61°.
Pressure29.94 inHg
Wind7.2 mph S
Humidity90%
Visibility—
Dew point59°
Fri, 3071° / 62°0.58
71 °
Brookfield, Friday, 30 October
Rain. High 71°, low 62°.
Pressure29.71 inHg
Wind15.3 mph W
Humidity94%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3156° / 44°0.13
56 °
Brookfield, 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° / 43°0.18
55 °
Brookfield, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.18 in
Chance of precipitation42%
Record high73° (2016)
Record low19° (2019)
Mon, 0254° / 42°0.12
54 °
Brookfield, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.12 in
Chance of precipitation40%
Record high74° (1961)
Record low24° (1991)
Tue, 0353° / 40°0.07
53 °
Brookfield, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.07 in
Chance of precipitation27%
Record high72° (1987)
Record low18° (1991)
Wed, 0453° / 42°0.09
53 °
Brookfield, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high71° (2015)
Record low17° (1991)
Thu, 0553° / 40°0.12
53 °
Brookfield, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.12 in
Chance of precipitation32%
Record high75° (1978)
Record low20° (1991)
Fri, 0653° / 39°0.07
53 °
Brookfield, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation32%
Record high72° (1975)
Record low25° (1991)
Sat, 0752° / 39°0.06
52 °
Brookfield, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.06 in
Chance of precipitation22%
Record high70° (2020)
Record low20° (1991)
Sun, 0851° / 39°0.06
51 °
Brookfield, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.06 in
Chance of precipitation20%
Record high75° (2020)
Record low16° (1991)
Mon, 0952° / 39°0.13
52 °
Brookfield, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.13 in
Chance of precipitation35%
Record high72° (2020)
Record low20° (1991)
Tue, 1050° / 38°0.13
50 °
Brookfield, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.13 in
Chance of precipitation40%
Record high74° (2020)
Record low18° (2018)
Wed, 1148° / 36°0.08
48 °
Brookfield, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.08 in
Chance of precipitation30%
Record high70° (1964)
Record low17° (2019)
Thu, 1246° / 35°0.06
46 °
Brookfield, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.06 in
Chance of precipitation22%
Record high67° (1964)
Record low4° (2019)
Fri, 1347° / 34°0.05
47 °
Brookfield, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.05 in
Chance of precipitation22%
Record high68° (1999)
Record low3° (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 Brookfield, 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 Brookfield, 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.