South Beloit, Illinois Climate
United States
Pop. 7,680 Elev. 225 m / 738 ft
TZ: America/Chicago (UTC-5) ·
South Beloit has a dry climate with warm summers reaching 85°F (29°C) in July and cold winters averaging 14°F (-10°C) in January. Humidity pushes the summer feels-like temperature to 93°F (34°C), while wind chill can drive winter lows to 5°F (-15°C). Rain falls on about 45 days per year (28.3 in / 718 mm total), with snow on 6 days and 36 in (905 mm) of annual accumulation. The city averages 116 sunny days per year and around 33 thunderstorm days. Nearby lake water reaches 77°F (25°C) in summer.
| Temperature | 85°F (29°C) high | 14°F (-10°C) low |
| Feels like | 93°F (34°C) high | 5°F (-15°C) low |
| Rain | 45 days | 28.3 in (718 mm) /yr |
| Snow | 6 days | 35.6 in (905 mm) /yr |
| Sky | 116 sunny | 33 stormy |
| Wind | 2.4 mph (1.1 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, May, Sep, Oct
Sky & Air by Month
Cloud cover (%)
54
Jan 64
Feb 57
Mar 66
Apr 59
May 54
Jun 59
Jul 51
Aug 38
Sep 46
Oct 57
Nov 76
Dec Humidity (%)
60
Jan 64
Feb 60
Mar 60
Apr 60
May 63
Jun 71
Jul 72
Aug 69
Sep 68
Oct 67
Nov 74
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 21 mi Chicago Rockford International Airport (RFD)
Ski resort 35 mi Alpine Valley Resort
National park 92 mi Historic Pullman Foundation Exhibit Hall
Hospital 4 mi Beloit Memorial Hospital
Hiking trail 11 mi Lone Rock Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 29°F -1°C | 14°F -10°C | 0.1 in 3 mm | 2.1 in53 mm | 12 |
| February | 32°F 0°C | 16°F -9°C | 0.2 in 6 mm | 7.7 in196 mm | 6 |
| March | 55°F 13°C | 33°F 1°C | 3.1 in 78 mm | 8.3 in212 mm | 8 |
| April | 60°F 16°C | 41°F 5°C | 2.5 in 64 mm | 0.2 in5 mm | 4 |
| May | 69°F 21°C | 49°F 9°C | 3.0 in 76 mm | — | 9 |
| June | 83°F 29°C | 64°F 18°C | 4.2 in 107 mm | — | 10 |
| July | 85°F 29°C | 68°F 20°C | 5.0 in 126 mm | — | 9 |
| August | 79°F 26°C | 62°F 17°C | 3.9 in 100 mm | — | 14 |
| September | 77°F 25°C | 56°F 13°C | 2.3 in 58 mm | — | 17 |
| October | 65°F 19°C | 48°F 9°C | 1.4 in 36 mm | — | 13 |
| November | 48°F 9°C | 34°F 1°C | 0.9 in 23 mm | 9.9 in251 mm | 10 |
| December | 32°F 0°C | 18°F -8°C | 1.6 in 41 mm | 7.5 in189 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 12 | 0 |
| February | 6 | 0 |
| March | 8 | 4 |
| April | 4 | 1 |
| May | 9 | 2 |
| June | 10 | 5 |
| July | 9 | 8 |
| August | 14 | 6 |
| September | 17 | 5 |
| October | 13 | 1 |
| November | 10 | 0 |
| December | 4 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 36°F 2°C |
| April | 46°F 8°C |
| May | 56°F 13°C |
| June | 69°F 21°C |
| July | 77°F 25°C |
| August | 72°F 22°C |
| September | 65°F 18°C |
| October | 58°F 14°C |
| November | 42°F 5°C |
| December | 32°F 0°C |