Monthly outlook for Forest Homes, IL: average high 65.1°, average low 45.8°. That is 1.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 26 October (75.5°), the coolest 30 October (33.2°).
65.1°/45.8°
Average high / low
+1.7°
Above normal
3 / 5
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
68.5°
63.2°
+2.9°
30 October – 8 November
59.6°
59°
+0.3°
9 November – 18 November
at normal
54.2°
—
October records over 66 years
91.4°1 October 2019All-time high
28.6°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — Edwardsville (10 mi).
Wed, 2175° / 46°0
75 °
Forest Homes, Wednesday, 21 October
Clear. High 75°, low 46°.
Pressure30.27 inHg
Wind2.6 mph SW
Humidity51%
Visibility6.2 mi
Dew point49°
Thu, 2273° / 47°0
73 °
Forest Homes, Thursday, 22 October
Clear. High 73°, low 47°.
Pressure30.27 inHg
Wind1.1 mph NE
Humidity50%
Visibility6.2 mi
Dew point51°
Fri, 2371° / 52°0
71 °
Forest Homes, Friday, 23 October
Clear. High 71°, low 52°.
Pressure30.30 inHg
Wind6.8 mph SE
Humidity52%
Visibility6.2 mi
Dew point51°
Sat, 2471° / 51°0
71 °
Forest Homes, Saturday, 24 October
Overcast. High 71°, low 51°.
Pressure30.36 inHg
Wind6.6 mph SE
Humidity56%
Visibility6.2 mi
Dew point50°
Sun, 2574° / 55°0
74 °
Forest Homes, Sunday, 25 October
Overcast. High 74°, low 55°.
Pressure30.36 inHg
Wind7.3 mph S
Humidity47%
Visibility—
Dew point48°
Mon, 2676° / 56°0
76 °
Forest Homes, Monday, 26 October
Overcast. High 76°, low 56°.
Pressure30.18 inHg
Wind8.7 mph SW
Humidity35%
Visibility—
Dew point42°
Tue, 2761° / 49°0
61 °
Forest Homes, Tuesday, 27 October
Overcast. High 61°, low 49°.
Pressure30.24 inHg
Wind10.8 mph NW
Humidity62%
Visibility—
Dew point47°
Wed, 2852° / 40°0
52 °
Forest Homes, Wednesday, 28 October
Overcast. High 52°, low 40°.
Pressure30.24 inHg
Wind17.7 mph NW
Humidity34%
Visibility—
Dew point24°
Thu, 2958° / 35°0
58 °
Forest Homes, Thursday, 29 October
Clear. High 58°, low 35°.
Pressure30.30 inHg
Wind12 mph NW
Humidity36%
Visibility—
Dew point27°
Fri, 3057° / 33°0
57 °
Forest Homes, Friday, 30 October
Clear. High 57°, low 33°.
Pressure30.24 inHg
Wind8.5 mph SE
Humidity28%
Visibility—
Dew point19°
Sat, 3157° / 40°0.02
57 °
Forest Homes, Saturday, 31 October
Light rain. High 57°, low 40°.
Pressure29.94 inHg
Wind14.3 mph S
Humidity32%
Visibility—
Dew point26°
Sun, 0167° / 54°0.11
67 °
Forest Homes, Sunday, 1 November
Light rain. High 67°, low 54°.
Pressure29.83 inHg
Wind18.6 mph S
Humidity72%
Visibility—
Dew point56°
Mon, 0266° / 48°0.19
66 °
Forest Homes, Monday, 2 November
Rain. High 66°, low 48°.
Pressure30.12 inHg
Wind17.7 mph N
Humidity45%
Visibility—
Dew point44°
Tue, 0358° / 39°0
58 °
Forest Homes, Tuesday, 3 November
Clear. High 58°, low 39°.
Pressure30.47 inHg
Wind8.7 mph N
Humidity22%
Visibility—
Dew point15°
Wed, 0452° / 43°0.13
52 °
Forest Homes, Wednesday, 4 November
Light rain. High 52°, low 43°.
Pressure30.36 inHg
Wind7.5 mph SW
Humidity59%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0558° / 43°0.16
58 °
Forest Homes, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.16 in
Chance of precipitation30%
Record high76° (1978)
Record low24° (1991)
Fri, 0657° / 42°0.09
57 °
Forest Homes, Friday, 6 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation33%
Record high77° (2023)
Record low28° (1982)
Sat, 0757° / 42°0.08
57 °
Forest Homes, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.08 in
Chance of precipitation22%
Record high74° (1980)
Record low17° (1991)
Sun, 0857° / 42°0.04
57 °
Forest Homes, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.04 in
Chance of precipitation17%
Record high80° (2023)
Record low4° (1991)
Mon, 0958° / 43°0.1
58 °
Forest Homes, Monday, 9 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.1 in
Chance of precipitation30%
Record high76° (2022)
Record low8° (1991)
Tue, 1056° / 41°0.13
56 °
Forest Homes, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.13 in
Chance of precipitation30%
Record high74° (2020)
Record low20° (2018)
Wed, 1154° / 39°0.11
54 °
Forest Homes, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.11 in
Chance of precipitation27%
Record high74° (1989)
Record low23° (2019)
Thu, 1252° / 37°0.09
52 °
Forest Homes, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.09 in
Chance of precipitation25%
Record high72° (2010)
Record low12° (2019)
Fri, 1353° / 38°0.06
53 °
Forest Homes, Friday, 13 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation22%
Record high77° (1999)
Record low11° (1986)
Sat, 1454° / 39°0.1
54 °
Forest Homes, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.1 in
Chance of precipitation28%
Record high77° (1971)
Record low16° (1986)
Sun, 1554° / 39°0.13
54 °
Forest Homes, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.13 in
Chance of precipitation32%
Record high76° (2025)
Record low22° (2019)
Mon, 1653° / 38°0.11
53 °
Forest Homes, Monday, 16 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.11 in
Chance of precipitation23%
Record high71° (2001)
Record low24° (1997)
Tue, 1754° / 39°0.12
54 °
Forest Homes, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.12 in
Chance of precipitation25%
Record high75° (2016)
Record low14° (1997)
Wed, 1854° / 40°0.17
54 °
Forest Homes, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.17 in
Chance of precipitation32%
Record high70° (2024)
Record low14° (2014)
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 Forest Homes, 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 Forest Homes, 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.