Monthly outlook for Fox, IL: average high 65.8°, average low 48.2°. That is 2.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 October (81°), the coolest 22 October (39.4°).
65.8°/48.2°
Average high / low
+2.1°
Above normal
3 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
71.7°
63.5°
+4.5°
17 October – 26 October
56.1°
58.9°
-1.5°
27 October – 5 November
at normal
55°
—
October records over 66 years
87.6°3 October 2025All-time high
21.9°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — Boulder Hill (10 mi).
Thu, 0870° / 52°0
70 °
Fox, Thursday, 8 October
Mostly clear. High 70°, low 52°.
Pressure30.12 inHg
Wind5.4 mph NW
Humidity44%
Visibility6.2 mi
Dew point44°
Fri, 0972° / 48°0.03
72 °
Fox, Friday, 9 October
Light rain. High 72°, low 48°.
Pressure30.15 inHg
Wind8.5 mph SE
Humidity57%
Visibility6.2 mi
Dew point53°
Sat, 1081° / 58°0
81 °
Fox, Saturday, 10 October
Clear. High 81°, low 58°.
Pressure30.12 inHg
Wind9.8 mph S
Humidity51%
Visibility6.2 mi
Dew point56°
Sun, 1165° / 58°0.19
65 °
Fox, Sunday, 11 October
Rain. High 65°, low 58°.
Pressure29.91 inHg
Wind8.4 mph E
Humidity85%
Visibility6.2 mi
Dew point59°
Mon, 1278° / 53°0.14
78 °
Fox, Monday, 12 October
Light rain. High 78°, low 53°.
Pressure29.80 inHg
Wind7 mph SW
Humidity62%
Visibility—
Dew point59°
Tue, 1364° / 46°0.06
64 °
Fox, Tuesday, 13 October
Light rain. High 64°, low 46°.
Pressure30.00 inHg
Wind19.6 mph NW
Humidity69%
Visibility—
Dew point46°
Wed, 1460° / 41°0
60 °
Fox, Wednesday, 14 October
Partly cloudy. High 60°, low 41°.
Pressure30.21 inHg
Wind8.3 mph SE
Humidity53%
Visibility—
Dew point40°
Thu, 1573° / 49°0
73 °
Fox, Thursday, 15 October
Overcast. High 73°, low 49°.
Pressure29.94 inHg
Wind17.1 mph S
Humidity39%
Visibility—
Dew point40°
Fri, 1673° / 54°0.02
73 °
Fox, Friday, 16 October
Light rain. High 73°, low 54°.
Pressure29.80 inHg
Wind18.4 mph W
Humidity76%
Visibility—
Dew point63°
Sat, 1755° / 46°0
55 °
Fox, Saturday, 17 October
Overcast. High 55°, low 46°.
Pressure30.00 inHg
Wind14.4 mph W
Humidity60%
Visibility—
Dew point40°
Sun, 1850° / 46°0
50 °
Fox, Sunday, 18 October
Overcast. High 50°, low 46°.
Pressure30.06 inHg
Wind14.9 mph W
Humidity70%
Visibility—
Dew point37°
Mon, 1958° / 41°0
58 °
Fox, Monday, 19 October
Partly cloudy. High 58°, low 41°.
Pressure30.18 inHg
Wind9.7 mph W
Humidity58%
Visibility—
Dew point39°
Tue, 2063° / 43°0
63 °
Fox, Tuesday, 20 October
Clear. High 63°, low 43°.
Pressure30.18 inHg
Wind9.2 mph NW
Humidity49%
Visibility—
Dew point40°
Wed, 2156° / 42°0
56 °
Fox, Wednesday, 21 October
Clear. High 56°, low 42°.
Pressure30.30 inHg
Wind8.6 mph NE
Humidity49%
Visibility—
Dew point35°
Thu, 2255° / 39°0
55 °
Fox, Thursday, 22 October
Overcast. High 55°, low 39°.
Pressure30.30 inHg
Wind4.9 mph NE
Humidity46%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2359° / 44°0.12
59 °
Fox, Friday, 23 October
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.12 in
Chance of precipitation32%
Record high79° (1963)
Record low28° (1969)
Sat, 2458° / 44°0.11
58 °
Fox, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.11 in
Chance of precipitation38%
Record high79° (1963)
Record low22° (1981)
Sun, 2557° / 43°0.11
57 °
Fox, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.11 in
Chance of precipitation28%
Record high75° (1989)
Record low28° (2006)
Mon, 2656° / 42°0.1
56 °
Fox, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.1 in
Chance of precipitation27%
Record high79° (1963)
Record low23° (1962)
Tue, 2756° / 42°0.09
56 °
Fox, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.09 in
Chance of precipitation30%
Record high75° (2014)
Record low29° (1980)
Wed, 2856° / 41°0.05
56 °
Fox, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.05 in
Chance of precipitation20%
Record high74° (1999)
Record low25° (1976)
Thu, 2956° / 41°0.06
56 °
Fox, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.06 in
Chance of precipitation20%
Record high79° (2024)
Record low24° (1980)
Fri, 3058° / 42°0.11
58 °
Fox, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.11 in
Chance of precipitation27%
Record high78° (1971)
Record low23° (1988)
Sat, 3156° / 43°0.13
56 °
Fox, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.13 in
Chance of precipitation37%
Record high74° (1974)
Record low27° (2019)
Sun, 0155° / 41°0.17
55 °
Fox, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.17 in
Chance of precipitation35%
Record high74° (2016)
Record low17° (2019)
Mon, 0254° / 40°0.11
54 °
Fox, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.11 in
Chance of precipitation35%
Record high75° (1961)
Record low23° (1991)
Tue, 0353° / 38°0.07
53 °
Fox, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation27%
Record high73° (1987)
Record low17° (1991)
Wed, 0453° / 40°0.09
53 °
Fox, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.09 in
Chance of precipitation23%
Record high71° (2015)
Record low16° (1991)
Thu, 0553° / 39°0.11
53 °
Fox, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.11 in
Chance of precipitation28%
Record high75° (1978)
Record low18° (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 Fox, 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 Fox, 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.