Watseka, IL
Full City Profile · Illinois · Iroquois County County
2.6
/5.0
C+
Fair
4,630
Population
1,575/sq mi density
$42,794
Median Income
$26,119 per capita
$104,400
Home Value
$97,761 Zillow
$815
Median Rent
32.3% income on rent
51°F
Avg Temperature
179
Violent Crime/100K
1,391 property/100K
C+
Overall
2.6 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Economy
2.6 / 5.0
$42,794 median income, 6.8% unemployment
A+
Affordability
5.0 / 5.0
$104,400 home value, $815/mo rent
F
Safety
1.0 / 5.0
179 violent crimes/100K
D
Education
1.9 / 5.0
11.3% bachelor's degree or higher
Watseka experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 24°F in January while summers reach 74°F in July. Annual precipitation totals 38.4 inches. The area receives 17.1 inches of snow annually.
Temperature
24°F Jan (-4°C)
74°F Jul (23°C)
| Annual Average | 50.7°F |
| 6% below US avg | |
| January Average | 24°F (-4°C) |
| July Average | 74°F (23°C) |
Geography
| Elevation | 641 ft (195 m) |
| Area | 3.1 sq mi (7.9 km²) |
| Population Density | 1,575/sq mi |
| Coordinates | 40.7751°N, 87.7304°W |
| Timezone | America/Chicago |
| County | Iroquois County County |
| Nearest Airport | Vermilion Regional (DNV) 40 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 74.0 / 100 |
| Social Vulnerability | 34.0 / 100 |
| Community Resilience | 65.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively 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 | 125 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-4°C) | 2.1 in | Coldest |
| February | 28°F (-2°C) | 2.0 in | Driest |
| March | 39°F (4°C) | 2.4 in | |
| April | 50°F (10°C) | 3.7 in | |
| May | 62°F (17°C) | 4.4 in | |
| June | 71°F (22°C) | 5.0 in | Wettest |
| July | 74°F (23°C) | 4.2 in | Warmest |
| August | 72°F (22°C) | 3.5 in | |
| September | 65°F (19°C) | 3.2 in | |
| October | 54°F (12°C) | 3.2 in | |
| November | 41°F (5°C) | 2.7 in | |
| December | 30°F (-1°C) | 2.1 in |
Watseka has a seasonal temperature swing of 50°F / from 24°F in January to 74°F in July. Total annual precipitation is 38.4 inches, with June being the wettest month (5.0") and February the driest (2.0").