Heritage Lake, Illinois Climate
United States
Pop. 1,520 Elev. 227 m / 745 ft
TZ: America/Chicago (UTC-5) ·
Dry and warm, Heritage Lake sees July highs of 87°F (31°C) and cold January lows of 18°F (-8°C). Humidity pushes the summer feels-like temperature to 100°F (38°C), while wind chill can drive winter lows to 9°F (-13°C). Expect around 48 rainy days annually (31.6 in / 802 mm total), with snow on 3 days and 29 in (744 mm) of annual accumulation. The city averages 125 sunny days per year and around 33 thunderstorm days. Nearby lake water reaches 79°F (26°C) in summer.
| Temperature | 87°F (30°C) high | 18°F (-8°C) low |
| Feels like | 100°F (38°C) high | 9°F (-13°C) low |
| Rain | 48 days | 31.6 in (802 mm) /yr |
| Snow | 3 days | 29.3 in (744 mm) /yr |
| Sky | 125 sunny | 33 stormy |
| Wind | 2.8 mph (1.3 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Mar, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
52
Jan 60
Feb 53
Mar 67
Apr 58
May 54
Jun 67
Jul 51
Aug 35
Sep 44
Oct 51
Nov 70
Dec Humidity (%)
64
Jan 65
Feb 57
Mar 60
Apr 60
May 70
Jun 76
Jul 74
Aug 60
Sep 60
Oct 66
Nov 78
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 21 mi General Wayne A. Downing Peoria International Airport (PIA)
Ski resort 108 mi
National park 119 mi Historic Pullman Foundation Exhibit Hall
Hospital 10 mi Hopedale Medical Complex
Hiking trail 12 mi Meadow Valley Park
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 32°F 0°C | 18°F -8°C | 0.4 in 10 mm | 6.3 in159 mm | 15 |
| February | 38°F 3°C | 23°F -5°C | 0.3 in 6 mm | 5.0 in126 mm | 8 |
| March | 60°F 16°C | 38°F 4°C | 3.2 in 81 mm | 3.0 in76 mm | 12 |
| April | 66°F 19°C | 46°F 8°C | 4.1 in 104 mm | 0.0 in1 mm | 4 |
| May | 73°F 23°C | 53°F 12°C | 3.6 in 91 mm | — | 10 |
| June | 84°F 29°C | 66°F 19°C | 5.1 in 130 mm | — | 9 |
| July | 87°F 30°C | 71°F 22°C | 5.5 in 141 mm | — | 4 |
| August | 82°F 28°C | 64°F 18°C | 2.5 in 64 mm | — | 13 |
| September | 82°F 28°C | 57°F 14°C | 1.1 in 28 mm | — | 19 |
| October | 71°F 22°C | 50°F 10°C | 3.0 in 76 mm | — | 15 |
| November | 53°F 12°C | 36°F 2°C | 1.6 in 42 mm | 7.6 in193 mm | 10 |
| December | 38°F 3°C | 21°F -6°C | 1.2 in 30 mm | 7.5 in189 mm | 6 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 15 | 0 |
| February | 8 | 0 |
| March | 12 | 4 |
| April | 4 | 4 |
| May | 10 | 2 |
| June | 9 | 4 |
| July | 4 | 8 |
| August | 13 | 5 |
| September | 19 | 2 |
| October | 15 | 2 |
| November | 10 | 1 |
| December | 6 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 42°F 6°C |
| April | 53°F 12°C |
| May | 61°F 16°C |
| June | 73°F 23°C |
| July | 79°F 26°C |
| August | 75°F 24°C |
| September | 68°F 20°C |
| October | 59°F 15°C |
| November | 43°F 6°C |
| December | 32°F 0°C |