As of 12:13 CDT

Weather in South Beloit, IL

59°Current weather

South Beloit, Sunday, 18 October, 12:13

Clear. Feels like 57°. High 61°, low 41°.

Pressure30.39 inHg
Wind17.3 mph SW
Humidity52%
Visibility6.2 mi
Dew point42°

Monthly outlook for South Beloit, IL: average high 61.5°, average low 44.9°. That is 2.9° above the climate normal for October. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 24 October (71.3°), the coolest 2 November (34.5°).

61.5°/44.9°
Average high / low
+2.9°
Above normal
5 / 5
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October62.3°57.3°+2.8°
28 October – 6 November60.2°53.2°+3.9°
7 November – 16 Novemberat normal47.3°—

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).

Mon, 1964° / 40°0Overcast
64 °Overcast

South Beloit, Monday, 19 October

Overcast. High 64°, low 40°.

Pressure30.39 inHg
Wind3.8 mph S
Humidity61%
Visibility6.2 mi
Dew point45°
Tue, 2064° / 41°0Clear
64 °Clear

South Beloit, Tuesday, 20 October

Clear. High 64°, low 41°.

Pressure30.39 inHg
Wind4.9 mph SE
Humidity57%
Visibility6.2 mi
Dew point46°
Wed, 2167° / 43°0Clear
67 °Clear

South Beloit, Wednesday, 21 October

Clear. High 67°, low 43°.

Pressure30.30 inHg
Wind3.6 mph SW
Humidity59%
Visibility6.2 mi
Dew point49°
Thu, 2267° / 46°0Clear
67 °Clear

South Beloit, Thursday, 22 October

Clear. High 67°, low 46°.

Pressure30.33 inHg
Wind3.1 mph NE
Humidity63%
Visibility6.2 mi
Dew point51°
Fri, 2363° / 51°0Mostly clear
63 °Mostly clear

South Beloit, Friday, 23 October

Mostly clear. High 63°, low 51°.

Pressure30.36 inHg
Wind9.7 mph SE
Humidity57%
Visibility—
Dew point46°
Sat, 2471° / 53°0.02Light rain
71 °Light rain

South Beloit, Saturday, 24 October

Light rain. High 71°, low 53°.

Pressure30.21 inHg
Wind18.5 mph S
Humidity49%
Visibility—
Dew point47°
Sun, 2555° / 47°0.08Light rain
55 °Light rain

South Beloit, Sunday, 25 October

Light rain. High 55°, low 47°.

Pressure30.45 inHg
Wind12.1 mph NW
Humidity37%
Visibility—
Dew point28°
Mon, 2650° / 42°0.11Light rain
50 °Light rain

South Beloit, Monday, 26 October

Light rain. High 50°, low 42°.

Pressure30.33 inHg
Wind8.2 mph S
Humidity70%
Visibility—
Dew point38°
Tue, 2761° / 48°0.02Light rain
61 °Light rain

South Beloit, Tuesday, 27 October

Light rain. High 61°, low 48°.

Pressure30.27 inHg
Wind9.6 mph SE
Humidity74%
Visibility—
Dew point50°
Wed, 2860° / 54°0.07Light rain
60 °Light rain

South Beloit, Wednesday, 28 October

Light rain. High 60°, low 54°.

Pressure29.94 inHg
Wind11.8 mph S
Humidity86%
Visibility—
Dew point52°
Thu, 2969° / 53°0.01Light rain
69 °Light rain

South Beloit, Thursday, 29 October

Light rain. High 69°, low 53°.

Pressure29.71 inHg
Wind11.5 mph W
Humidity49%
Visibility—
Dew point48°
Fri, 3065° / 48°0.1Light rain
65 °Light rain

South Beloit, Friday, 30 October

Light rain. High 65°, low 48°.

Pressure29.77 inHg
Wind18.5 mph S
Humidity59%
Visibility—
Dew point47°
Sat, 3164° / 40°0.24Light rain
64 °Light rain

South Beloit, Saturday, 31 October

Light rain. High 64°, low 40°.

Pressure29.59 inHg
Wind25.7 mph SW
Humidity53%
Visibility—
Dew point33°
Sun, 0148° / 38°0Overcast
48 °Overcast

South Beloit, Sunday, 1 November

Overcast. High 48°, low 38°.

Pressure30.15 inHg
Wind23.8 mph W
Humidity56%
Visibility—
Dew point30°
Mon, 0254° / 34°0Overcast
54 °Overcast

South Beloit, Monday, 2 November

Overcast. High 54°, low 34°.

Pressure30.39 inHg
Wind12 mph S
Humidity40%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0352° / 38°0.06Climate normal
52 °Climate normal

South Beloit, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.06 in
Chance of precipitation28%
Record high71° (1964)
Record low15° (1991)
Wed, 0452° / 39°0.09Climate normal
52 °Climate normal

South Beloit, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.09 in
Chance of precipitation25%
Record high70° (2015)
Record low13° (1991)
Thu, 0551° / 38°0.11Climate normal
51 °Climate normal

South Beloit, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.11 in
Chance of precipitation25%
Record high70° (1978)
Record low18° (1991)
Fri, 0651° / 37°0.09Climate normal
51 °Climate normal

South Beloit, Friday, 6 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (1975)
Record low21° (1991)
Sat, 0750° / 36°0.03Climate normal
50 °Climate normal

South Beloit, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (2020)
Record low10° (1991)
Sun, 0850° / 36°0.05Climate normal
50 °Climate normal

South Beloit, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation20%
Record high71° (2020)
Record low13° (1991)
Mon, 0950° / 37°0.11Climate normal
50 °Climate normal

South Beloit, Monday, 9 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high73° (2020)
Record low17° (1991)
Tue, 1049° / 35°0.11Climate normal
49 °Climate normal

South Beloit, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.11 in
Chance of precipitation30%
Record high71° (2022)
Record low15° (2017)
Wed, 1146° / 33°0.06Climate normal
46 °Climate normal

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°0.07Climate normal
45 °Climate normal

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°0.04Climate normal
45 °Climate normal

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°0.06Climate normal
46 °Climate normal

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°0.07Climate normal
46 °Climate normal

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°0.05Climate normal
46 °Climate normal

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)

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.