Monthly outlook for South Freeport, IL: average high 43.9°, average low 30.5°. That is 0.5° above the climate normal for November. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 21 November (60.8°), the coolest 24 November (16.1°).
43.9°/30.5°
Average high / low
+0.5°
Above normal
4 / 5
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 November – 23 November
49°
44.8°
+2.4°
24 November – 3 December
35.4°
39.1°
-2.1°
4 December – 13 December
at normal
34.1°
—
November records over 66 years
73.8°1 November 2000All-time high
-2.7°26 November 1977All-time low
Climate normals and records are computed from the nearest reference point — Freeport (5 mi).
Sun, 1548° / 29°0
48 °
South Freeport, Sunday, 15 November
Mostly clear. High 48°, low 29°.
Pressure30.45 inHg
Wind2.2 mph W
Humidity60%
Visibility6.2 mi
Dew point29°
Mon, 1650° / 30°0
50 °
South Freeport, Monday, 16 November
Clear. High 50°, low 30°.
Pressure30.50 inHg
Wind8.2 mph SW
Humidity55%
Visibility6.2 mi
Dew point32°
Tue, 1753° / 35°0
53 °
South Freeport, Tuesday, 17 November
Overcast. High 53°, low 35°.
Pressure30.45 inHg
Wind8.7 mph SW
Humidity58%
Visibility6.2 mi
Dew point36°
Wed, 1854° / 37°0
54 °
South Freeport, Wednesday, 18 November
Overcast. High 54°, low 37°.
Pressure30.27 inHg
Wind14.9 mph S
Humidity59%
Visibility—
Dew point36°
Thu, 1955° / 46°0.03
55 °
South Freeport, Thursday, 19 November
Light rain. High 55°, low 46°.
Pressure30.21 inHg
Wind15.7 mph S
Humidity69%
Visibility—
Dew point44°
Fri, 2057° / 39°0
57 °
South Freeport, Friday, 20 November
Overcast. High 57°, low 39°.
Pressure30.27 inHg
Wind14.6 mph S
Humidity80%
Visibility—
Dew point44°
Sat, 2161° / 55°0.58
61 °
South Freeport, Saturday, 21 November
Rain. High 61°, low 55°.
Pressure29.83 inHg
Wind19.8 mph S
Humidity63%
Visibility—
Dew point47°
Sun, 2242° / 23°0.24
42 °
South Freeport, Sunday, 22 November
Snow. High 42°, low 23°.
Pressure30.06 inHg
Wind23.6 mph N
Humidity72%
Visibility—
Dew point23°
Mon, 2326° / 18°0.01
26 °
South Freeport, Monday, 23 November
Light snow. High 26°, low 18°.
Pressure30.21 inHg
Wind15.7 mph N
Humidity57%
Visibility—
Dew point11°
Tue, 2427° / 16°0
27 °
South Freeport, Tuesday, 24 November
Clear. High 27°, low 16°.
Pressure30.33 inHg
Wind12.2 mph NW
Humidity61%
Visibility—
Dew point14°
Wed, 2534° / 22°0
34 °
South Freeport, Wednesday, 25 November
Overcast. High 34°, low 22°.
Pressure30.03 inHg
Wind17.4 mph S
Humidity45%
Visibility—
Dew point11°
Thu, 2633° / 24°0
33 °
South Freeport, Thursday, 26 November
Overcast. High 33°, low 24°.
Pressure30.21 inHg
Wind9.2 mph W
Humidity65%
Visibility—
Dew point20°
Fri, 2738° / 27°0.53
38 °
South Freeport, Friday, 27 November
Rain. High 38°, low 27°.
Pressure30.24 inHg
Wind21.5 mph SE
Humidity60%
Visibility—
Dew point23°
Sat, 2846° / 33°0.37
46 °
South Freeport, Saturday, 28 November
Snow. High 46°, low 33°.
Pressure29.41 inHg
Wind20.6 mph W
Humidity92%
Visibility—
Dew point42°
Sun, 2934° / 26°0
34 °
South Freeport, Sunday, 29 November
Overcast. High 34°, low 26°.
Pressure30.09 inHg
Wind19.7 mph W
Humidity53%
Visibility—
Dew point14°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 3039° / 26°0.06
39 °
South Freeport, Monday, 30 November
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.06 in
Chance of precipitation23%
Record high65° (1998)
Record low5° (1977)
Tue, 0137° / 25°0.11
37 °
South Freeport, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.11 in
Chance of precipitation40%
Record high59° (1970)
Record low1° (1971)
Wed, 0238° / 25°0.05
38 °
South Freeport, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.05 in
Chance of precipitation27%
Record high66° (1982)
Record low2° (1971)
Thu, 0337° / 24°0.09
37 °
South Freeport, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.09 in
Chance of precipitation30%
Record high66° (2012)
Record low-10° (1985)
Fri, 0436° / 24°0.06
36 °
South Freeport, Friday, 4 December
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.06 in
Chance of precipitation20%
Record high64° (1998)
Record low-5° (2025)
Sat, 0537° / 24°0.07
37 °
South Freeport, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.07 in
Chance of precipitation32%
Record high65° (2001)
Record low-2° (1991)
Sun, 0635° / 22°0.05
35 °
South Freeport, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.05 in
Chance of precipitation27%
Record high59° (1998)
Record low-6° (2007)
Mon, 0733° / 21°0.09
33 °
South Freeport, Monday, 7 December
Climate normal for this date — 60-year average.
Average high33°
Average low21°
Average precipitation0.09 in
Chance of precipitation27%
Record high53° (1980)
Record low-5° (2005)
Tue, 0833° / 22°0.07
33 °
South Freeport, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high33°
Average low22°
Average precipitation0.07 in
Chance of precipitation32%
Record high56° (1991)
Record low-2° (2025)
Wed, 0934° / 20°0.08
34 °
South Freeport, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.08 in
Chance of precipitation32%
Record high51° (1987)
Record low-8° (1978)
Thu, 1033° / 20°0.07
33 °
South Freeport, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high33°
Average low20°
Average precipitation0.07 in
Chance of precipitation25%
Record high56° (2015)
Record low-13° (1978)
Fri, 1132° / 19°0.09
32 °
South Freeport, Friday, 11 December
Climate normal for this date — 60-year average.
Average high32°
Average low19°
Average precipitation0.09 in
Chance of precipitation32%
Record high55° (1965)
Record low-16° (1972)
Sat, 1234° / 19°0.05
34 °
South Freeport, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.05 in
Chance of precipitation18%
Record high58° (1991)
Record low-9° (2000)
Sun, 1334° / 20°0.05
34 °
South Freeport, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.05 in
Chance of precipitation20%
Record high60° (2015)
Record low-17° (2000)
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 South Freeport, 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 South Freeport, 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.