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Forest City, IL
Full City Profile · Illinois · Mason County County
2.9
/5.0
C+
Fair
225
Population
433/sq mi density
$63,125
Median Income
$28,239 per capita
$70,000
Home Value
$88,695 Zillow
$920
Median Rent
16.3% income on rent
52°F
Avg Temperature
275 sunny days/yr
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
C
Economy
2.0 / 5.0
$63,125 median income, 9.8% unemployment
A+
Affordability
5.0 / 5.0
$70,000 home value, $920/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
C
Education
2.1 / 5.0
13.4% bachelor's degree or higher
Forest City experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 25°F in January while summers reach 75°F in July. The area gets 275 sunny days per year. Annual precipitation totals 39.3 inches. The area receives 12.9 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
25°F Jan (-4°C)
75°F Jul (24°C)
| Annual Average | 51.7°F |
| 4% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 492 ft (150 m) |
| Area | 0.5 sq mi (1.3 km²) |
| Population Density | 433/sq mi |
| Coordinates | 40.3722°N, 89.8325°W |
| Timezone | America/Chicago |
| County | Mason County County |
| Nearest Airport | General Downing - Peoria International (PIA) 21 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 43.0 / 100 |
| Social Vulnerability | 52.9 / 100 |
| Community Resilience | 68.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 1.5 in | Coldest, Driest |
| February | 29°F (-2°C) | 1.6 in | |
| March | 41°F (5°C) | 3.0 in | |
| April | 52°F (11°C) | 3.6 in | |
| May | 63°F (17°C) | 4.0 in | Wettest |
| June | 72°F (22°C) | 3.8 in | |
| July | 75°F (24°C) | 3.9 in | Warmest |
| August | 74°F (23°C) | 3.4 in | |
| September | 67°F (19°C) | 3.6 in | |
| October | 55°F (13°C) | 2.9 in | |
| November | 41°F (5°C) | 2.8 in | |
| December | 29°F (-2°C) | 2.6 in |
Forest City has a seasonal temperature swing of 50°F / from 25°F in January to 75°F in July. Total annual precipitation is 36.7 inches, with May being the wettest month (4.0") and January the driest (1.5").