Willow Springs, IL
Full City Profile · Illinois · Cook County County
3.9
/5.0
B+
Good
5,871
Population
1,415/sq mi density
$103,429
Median Income
$57,082 per capita
$370,900
Home Value
$405,828 Zillow
$1,328
Median Rent
37.5% income on rent
51°F
Avg Temperature
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$103,429 median income, 5.4% unemployment
A+
Affordability
4.7 / 5.0
$370,900 home value, $1,328/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
A
Education
4.1 / 5.0
39.1% bachelor's degree or higher
Willow Springs experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 24°F in January while summers reach 77°F in July. Annual precipitation totals 41.4 inches. The area receives 38.8 inches of snow annually. Air quality is rated Moderate with a median AQI of 54.
Temperature
24°F Jan (-5°C)
77°F Jul (25°C)
| Annual Average | 51.4°F |
| 5% below US avg | |
| January Average | 24°F (-5°C) |
| July Average | 77°F (25°C) |
Geography
| Elevation | 590 ft (180 m) |
| Area | 4.2 sq mi (10.7 km²) |
| Population Density | 1,415/sq mi |
| Coordinates | 41.7341°N, 87.8840°W |
| Timezone | America/Chicago |
| County | Cook County County |
| Nearest Airport | Chicago Midway International (MDW) 8 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 54.0 |
| Rating | Moderate |
| Good Days % | 35.8% |
| Unhealthy Days | 11 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0460 ppm |
| NO₂ (Nitrogen Dioxide) | 20.6 ppb |
| SO₂ (Sulfur Dioxide) | 1.33 ppb |
| CO (Carbon Monoxide) | 0.29 ppm |
| PM2.5 (Fine Particles) | 10.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 100.0 / 100 |
| Social Vulnerability | 61.7 / 100 |
| Community Resilience | 73.3 / 100 |
Hazard Breakdown
| Tornado | Very High |
| Hurricane | Very Low |
| Earthquake | Relatively High |
| Wildfire | Very Low |
| Flood | Very High |
| Hail | Relatively High |
| Strong Wind | Very High |
| Heat Wave | Very High |
| Winter Weather | Very High |
| Lightning | Very High |
| Ice Storm | Very High |
| Drought | Very Low |
| Cold Wave | Very High |
| Landslide | Very Low |
| Coastal Flood | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1954 | MICHIGAN CITY, IN (LAKE MICHIGAN) | Avalanche | 3.0 m | 7 | 83 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-5°C) | 2.3 in | Coldest |
| February | 27°F (-3°C) | 2.0 in | Driest |
| March | 38°F (3°C) | 2.5 in | |
| April | 51°F (10°C) | 4.1 in | |
| May | 62°F (16°C) | 5.0 in | Wettest |
| June | 72°F (22°C) | 4.7 in | |
| July | 77°F (25°C) | 4.1 in | Warmest |
| August | 75°F (24°C) | 4.5 in | |
| September | 67°F (20°C) | 3.5 in | |
| October | 54°F (12°C) | 3.7 in | |
| November | 41°F (5°C) | 2.7 in | |
| December | 30°F (-1°C) | 2.4 in |
Willow Springs has a seasonal temperature swing of 53°F / from 24°F in January to 77°F in July. Total annual precipitation is 41.4 inches, with May being the wettest month (5.0") and February the driest (2.0").