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Park Forest, IL
Full City Profile · Illinois · Will County County
3.1
/5.0
B
Good
20,898
Population
4,213/sq mi density
$62,305
Median Income
$29,400 per capita
$106,200
Home Value
$148,861 Zillow
$1,341
Median Rent
28.2% income on rent
50°F
Avg Temperature
275 sunny days/yr
398
Violent Crime/100K
1,512 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$62,305 median income, 4.6% unemployment
A+
Affordability
5.0 / 5.0
$106,200 home value, $1,341/mo rent
F
Safety
1.0 / 5.0
398 violent crimes/100K (5% above avg)
B
Education
3.1 / 5.0
25.8% bachelor's degree or higher
Park Forest experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 23°F in January while summers reach 74°F in July. The area gets 275 sunny days per year. Annual precipitation totals 42.1 inches. The area receives 28.2 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
23°F Jan (-5°C)
74°F Jul (23°C)
| Annual Average | 49.8°F |
| 8% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 708 ft (216 m) |
| Area | 1.9 sq mi (5.0 km²) |
| Population Density | 4,213/sq mi |
| Coordinates | 41.4817°N, 87.6868°W |
| Timezone | America/Chicago |
| County | Will County County |
| Nearest Airport | Gary/Chicago International (GYY) 17 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0479 ppm |
| PM2.5 (Fine Particles) | 9.5 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 97.3 / 100 |
| Social Vulnerability | 13.4 / 100 |
| Community Resilience | 92.4 / 100 |
Hazard Breakdown
| Tornado | Very High |
| Hurricane | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Very High |
| Landslide | Very 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 | 71 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 1.6 in | Coldest |
| February | 26°F (-3°C) | 1.4 in | Driest |
| March | 37°F (3°C) | 2.8 in | |
| April | 48°F (9°C) | 4.1 in | |
| May | 60°F (15°C) | 4.1 in | |
| June | 69°F (21°C) | 4.3 in | Wettest |
| July | 74°F (23°C) | 3.9 in | Warmest |
| August | 71°F (22°C) | 3.7 in | |
| September | 64°F (18°C) | 3.6 in | |
| October | 52°F (11°C) | 2.9 in | |
| November | 40°F (4°C) | 3.2 in | |
| December | 27°F (-3°C) | 2.6 in |
Park Forest has a seasonal temperature swing of 51°F / from 23°F in January to 74°F in July. Total annual precipitation is 38.1 inches, with June being the wettest month (4.3") and February the driest (1.4").