Monthly outlook for South Beloit, IL: average high 58.2°, average low 44.9°. That is 3.1° above the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 27 October (69.1°), the coolest 9 November (30.3°).
58.2°/44.9°
Average high / low
+3.1°
Above normal
4 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
62.1°
54.1°
+4.5°
5 November – 14 November
51.8°
48.3°
+1.9°
15 November – 24 November
at normal
44.5°
—
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).
Tue, 2769° / 50°0
69 °
South Beloit, Tuesday, 27 October
Overcast. High 69°, low 50°.
Pressure30.21 inHg
Wind7.6 mph SE
Humidity72%
Visibility6.2 mi
Dew point53°
Wed, 2867° / 55°0
67 °
South Beloit, Wednesday, 28 October
Overcast. High 67°, low 55°.
Pressure30.18 inHg
Wind4.8 mph S
Humidity78%
Visibility6.2 mi
Dew point53°
Thu, 2965° / 54°0.07
65 °
South Beloit, Thursday, 29 October
Light rain. High 65°, low 54°.
Pressure30.06 inHg
Wind8.4 mph SW
Humidity79%
Visibility6.2 mi
Dew point57°
Fri, 3064° / 44°0
64 °
South Beloit, Friday, 30 October
Overcast. High 64°, low 44°.
Pressure30.18 inHg
Wind7.2 mph SE
Humidity51%
Visibility—
Dew point43°
Sat, 3163° / 50°0.1
63 °
South Beloit, Saturday, 31 October
Light rain. High 63°, low 50°.
Pressure30.15 inHg
Wind7.4 mph SE
Humidity69%
Visibility—
Dew point52°
Sun, 0164° / 50°0.01
64 °
South Beloit, Sunday, 1 November
Light rain. High 64°, low 50°.
Pressure30.09 inHg
Wind7.9 mph E
Humidity46%
Visibility—
Dew point41°
Mon, 0257° / 50°0
57 °
South Beloit, Monday, 2 November
Overcast. High 57°, low 50°.
Pressure29.94 inHg
Wind9 mph NE
Humidity54%
Visibility—
Dew point40°
Tue, 0359° / 49°0
59 °
South Beloit, Tuesday, 3 November
Overcast. High 59°, low 49°.
Pressure30.06 inHg
Wind8.4 mph W
Humidity72%
Visibility—
Dew point48°
Wed, 0446° / 40°0
46 °
South Beloit, Wednesday, 4 November
Overcast. High 46°, low 40°.
Pressure30.36 inHg
Wind15.7 mph NE
Humidity64%
Visibility—
Dew point35°
Thu, 0548° / 33°0
48 °
South Beloit, Thursday, 5 November
Partly cloudy. High 48°, low 33°.
Pressure30.50 inHg
Wind8.3 mph SE
Humidity43%
Visibility—
Dew point24°
Fri, 0651° / 33°0
51 °
South Beloit, Friday, 6 November
Partly cloudy. High 51°, low 33°.
Pressure30.18 inHg
Wind16.4 mph S
Humidity39%
Visibility—
Dew point24°
Sat, 0753° / 45°0.27
53 °
South Beloit, Saturday, 7 November
Light rain. High 53°, low 45°.
Pressure29.80 inHg
Wind18.1 mph S
Humidity88%
Visibility—
Dew point43°
Sun, 0853° / 36°0.09
53 °
South Beloit, Sunday, 8 November
Light rain. High 53°, low 36°.
Pressure30.12 inHg
Wind19 mph NW
Humidity67%
Visibility—
Dew point33°
Mon, 0947° / 30°0
47 °
South Beloit, Monday, 9 November
Partly cloudy. High 47°, low 30°.
Pressure30.33 inHg
Wind10.7 mph S
Humidity50%
Visibility—
Dew point26°
Tue, 1057° / 48°0
57 °
South Beloit, Tuesday, 10 November
Overcast. High 57°, low 48°.
Pressure29.88 inHg
Wind10.9 mph S
Humidity64%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1146° / 33°0.06
46 °
South Beloit, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation25%
Record high69° (1964)
Record low13° (2019)
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)
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.