Monthly outlook for South Beloit, IL: average high 57.7°, average low 45°. That is 3.2° above the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 28 October (72°), the coolest 7 November (32.5°).
57.7°/45°
Average high / low
+3.2°
Above normal
5 / 4
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
60.3°
53.7°
+3.7°
6 November – 15 November
53.3°
47.8°
+3.1°
16 November – 25 November
at normal
44.2°
—
October records over 66 years
88°3 October 2025All-time high
22.1°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Rockford (15 mi).
Wed, 2872° / 53°0
72 °
South Beloit, Wednesday, 28 October
Clear. High 72°, low 53°.
Pressure30.15 inHg
Wind7.3 mph S
Humidity62%
Visibility6.2 mi
Dew point54°
Thu, 2967° / 48°0.06
67 °
South Beloit, Thursday, 29 October
Light rain. High 67°, low 48°.
Pressure30.06 inHg
Wind9.1 mph NW
Humidity74%
Visibility6.2 mi
Dew point57°
Fri, 3061° / 42°0.13
61 °
South Beloit, Friday, 30 October
Rain. High 61°, low 42°.
Pressure30.30 inHg
Wind4.9 mph SE
Humidity55%
Visibility6.2 mi
Dew point42°
Sat, 3157° / 51°0.5
57 °
South Beloit, Saturday, 31 October
Rain. High 57°, low 51°.
Pressure30.24 inHg
Wind7.1 mph E
Humidity87%
Visibility—
Dew point52°
Sun, 0165° / 53°0.31
65 °
South Beloit, Sunday, 1 November
Rain. High 65°, low 53°.
Pressure30.18 inHg
Wind8.2 mph NE
Humidity72%
Visibility—
Dew point54°
Mon, 0252° / 49°0.02
52 °
South Beloit, Monday, 2 November
Light rain. High 52°, low 49°.
Pressure29.94 inHg
Wind17.8 mph NE
Humidity90%
Visibility—
Dew point49°
Tue, 0352° / 47°0
52 °
South Beloit, Tuesday, 3 November
Overcast. High 52°, low 47°.
Pressure30.27 inHg
Wind16.7 mph NE
Humidity75%
Visibility—
Dew point44°
Wed, 0455° / 42°0
55 °
South Beloit, Wednesday, 4 November
Overcast. High 55°, low 42°.
Pressure30.09 inHg
Wind12.9 mph E
Humidity57%
Visibility—
Dew point38°
Thu, 0557° / 44°0
57 °
South Beloit, Thursday, 5 November
Overcast. High 57°, low 44°.
Pressure29.88 inHg
Wind12.2 mph N
Humidity40%
Visibility—
Dew point30°
Fri, 0646° / 35°0
46 °
South Beloit, Friday, 6 November
Clear. High 46°, low 35°.
Pressure30.18 inHg
Wind12.2 mph N
Humidity47%
Visibility—
Dew point25°
Sat, 0747° / 33°0
47 °
South Beloit, Saturday, 7 November
Overcast. High 47°, low 33°.
Pressure30.18 inHg
Wind10.9 mph S
Humidity49%
Visibility—
Dew point27°
Sun, 0855° / 37°0
55 °
South Beloit, Sunday, 8 November
Overcast. High 55°, low 37°.
Pressure30.12 inHg
Wind8.8 mph S
Humidity54%
Visibility—
Dew point35°
Mon, 0957° / 44°0
57 °
South Beloit, Monday, 9 November
Overcast. High 57°, low 44°.
Pressure30.06 inHg
Wind15.5 mph S
Humidity56%
Visibility—
Dew point40°
Tue, 1060° / 46°0
60 °
South Beloit, Tuesday, 10 November
Overcast. High 60°, low 46°.
Pressure29.91 inHg
Wind9.3 mph SW
Humidity75%
Visibility—
Dew point50°
Wed, 1154° / 45°0.17
54 °
South Beloit, Wednesday, 11 November
Light rain. High 54°, low 45°.
Pressure29.77 inHg
Wind22.3 mph W
Humidity79%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1245° / 32°0.07
45 °
South Beloit, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.07 in
Chance of precipitation25%
Record high64° (1964)
Record low3° (2019)
Fri, 1345° / 32°0.04
45 °
South Beloit, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.04 in
Chance of precipitation18%
Record high69° (1999)
Record low8° (1986)
Sat, 1446° / 32°0.06
46 °
South Beloit, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation28%
Record high67° (1971)
Record low10° (1995)
Sun, 1546° / 33°0.07
46 °
South Beloit, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation27%
Record high69° (2025)
Record low9° (1995)
Mon, 1646° / 32°0.05
46 °
South Beloit, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.05 in
Chance of precipitation17%
Record high62° (1988)
Record low19° (2019)
Tue, 1746° / 33°0.11
46 °
South Beloit, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation27%
Record high71° (2016)
Record low15° (2005)
Wed, 1846° / 33°0.09
46 °
South Beloit, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation30%
Record high67° (1999)
Record low11° (2014)
Thu, 1946° / 33°0.06
46 °
South Beloit, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation25%
Record high64° (1983)
Record low16° (1986)
Fri, 2044° / 32°0.07
44 °
South Beloit, Friday, 20 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.07 in
Chance of precipitation33%
Record high62° (1982)
Record low13° (2022)
Sat, 2143° / 30°0.09
43 °
South Beloit, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.09 in
Chance of precipitation23%
Record high65° (1990)
Record low8° (1964)
Sun, 2243° / 30°0.03
43 °
South Beloit, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.03 in
Chance of precipitation18%
Record high66° (2010)
Record low2° (2015)
Mon, 2343° / 31°0.07
43 °
South Beloit, Monday, 23 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.07 in
Chance of precipitation30%
Record high62° (2003)
Record low11° (1970)
Tue, 2442° / 29°0.07
42 °
South Beloit, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.07 in
Chance of precipitation28%
Record high63° (1966)
Record low10° (1985)
Wed, 2542° / 30°0.07
42 °
South Beloit, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.07 in
Chance of precipitation28%
Record high59° (1966)
Record low9° (1977)
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 Beloit, 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 Beloit, 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.