Monthly outlook for Forest River, IL: average high 62.9°, average low 49.2°. That is 2.7° above the climate normal for October. Precipitation is expected on 7 days (about 1.8 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 October (73.9°), the coolest 17 October (38.3°).
62.9°/49.2°
Average high / low
+2.7°
Above normal
7 / 5
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
64°
59.4°
+2.6°
24 October – 2 November
61.1°
55.5°
+3.1°
3 November – 12 November
at normal
50.6°
—
October records over 66 years
88.2°3 October 2025All-time high
26.2°31 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Park Ridge (5 mi).
Thu, 1568° / 58°0.77
68 °
Forest River, Thursday, 15 October
Rain. High 68°, low 58°.
Pressure30.00 inHg
Wind7.8 mph SE
Humidity94%
Visibility4.5 mi
Dew point59°
Fri, 1662° / 44°0.11
62 °
Forest River, Friday, 16 October
Rain. High 62°, low 44°.
Pressure30.03 inHg
Wind13.7 mph NW
Humidity71%
Visibility5.2 mi
Dew point44°
Sat, 1754° / 38°0
54 °
Forest River, Saturday, 17 October
Clear. High 54°, low 38°.
Pressure30.56 inHg
Wind3.8 mph W
Humidity51%
Visibility6.2 mi
Dew point33°
Sun, 1859° / 42°0
59 °
Forest River, Sunday, 18 October
Clear. High 59°, low 42°.
Pressure30.45 inHg
Wind11 mph SW
Humidity58%
Visibility6.2 mi
Dew point41°
Mon, 1962° / 42°0
62 °
Forest River, Monday, 19 October
Overcast. High 62°, low 42°.
Pressure30.39 inHg
Wind7.4 mph SW
Humidity56%
Visibility—
Dew point43°
Tue, 2070° / 53°0
70 °
Forest River, Tuesday, 20 October
Overcast. High 70°, low 53°.
Pressure30.27 inHg
Wind4.8 mph SW
Humidity34%
Visibility—
Dew point38°
Wed, 2174° / 56°0
74 °
Forest River, Wednesday, 21 October
Clear. High 74°, low 56°.
Pressure30.15 inHg
Wind8.6 mph SW
Humidity36%
Visibility—
Dew point42°
Thu, 2266° / 53°0.55
66 °
Forest River, Thursday, 22 October
Rain. High 66°, low 53°.
Pressure30.03 inHg
Wind13.6 mph NE
Humidity80%
Visibility—
Dew point59°
Fri, 2360° / 51°0.04
60 °
Forest River, Friday, 23 October
Light rain. High 60°, low 51°.
Pressure30.21 inHg
Wind9.6 mph SE
Humidity58%
Visibility—
Dew point44°
Sat, 2473° / 53°0
73 °
Forest River, Saturday, 24 October
Overcast. High 73°, low 53°.
Pressure29.83 inHg
Wind16.2 mph W
Humidity53%
Visibility—
Dew point54°
Sun, 2555° / 46°0
55 °
Forest River, Sunday, 25 October
Clear. High 55°, low 46°.
Pressure30.30 inHg
Wind15.6 mph W
Humidity31%
Visibility—
Dew point23°
Mon, 2662° / 45°0
62 °
Forest River, Monday, 26 October
Mostly clear. High 62°, low 45°.
Pressure30.12 inHg
Wind14.6 mph SW
Humidity35%
Visibility—
Dew point30°
Tue, 2762° / 48°0
62 °
Forest River, Tuesday, 27 October
Overcast. High 62°, low 48°.
Pressure30.00 inHg
Wind7.9 mph SW
Humidity50%
Visibility—
Dew point40°
Wed, 2859° / 51°0.21
59 °
Forest River, Wednesday, 28 October
Rain. High 59°, low 51°.
Pressure29.71 inHg
Wind12.4 mph S
Humidity61%
Visibility—
Dew point43°
Thu, 2956° / 49°0.11
56 °
Forest River, Thursday, 29 October
Light rain. High 56°, low 49°.
Pressure29.97 inHg
Wind15.7 mph NW
Humidity61%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3057° / 44°0.11
57 °
Forest River, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.11 in
Chance of precipitation30%
Record high77° (2024)
Record low29° (2020)
Sat, 3156° / 44°0.14
56 °
Forest River, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.14 in
Chance of precipitation40%
Record high72° (1974)
Record low26° (2023)
Sun, 0155° / 43°0.16
55 °
Forest River, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low43°
Average precipitation0.16 in
Chance of precipitation43%
Record high72° (2016)
Record low18° (2019)
Mon, 0254° / 42°0.12
54 °
Forest River, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.12 in
Chance of precipitation38%
Record high73° (1961)
Record low24° (1991)
Tue, 0353° / 41°0.06
53 °
Forest River, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.06 in
Chance of precipitation22%
Record high71° (1987)
Record low18° (1991)
Wed, 0452° / 42°0.09
52 °
Forest River, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.09 in
Chance of precipitation27%
Record high70° (2022)
Record low17° (1991)
Thu, 0553° / 41°0.13
53 °
Forest River, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.13 in
Chance of precipitation33%
Record high73° (1978)
Record low20° (1991)
Fri, 0652° / 39°0.07
52 °
Forest River, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.07 in
Chance of precipitation30%
Record high71° (1975)
Record low24° (1991)
Sat, 0751° / 39°0.05
51 °
Forest River, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.05 in
Chance of precipitation22%
Record high69° (2020)
Record low20° (1991)
Sun, 0851° / 39°0.05
51 °
Forest River, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.05 in
Chance of precipitation18%
Record high74° (2020)
Record low17° (1991)
Mon, 0951° / 39°0.12
51 °
Forest River, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.12 in
Chance of precipitation38%
Record high72° (2020)
Record low21° (1991)
Tue, 1050° / 39°0.11
50 °
Forest River, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.11 in
Chance of precipitation33%
Record high73° (2020)
Record low18° (2017)
Wed, 1148° / 36°0.08
48 °
Forest River, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.08 in
Chance of precipitation32%
Record high69° (1964)
Record low15° (2019)
Thu, 1246° / 35°0.06
46 °
Forest River, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.06 in
Chance of precipitation23%
Record high66° (1964)
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 Forest River, 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 River, 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.