Lost Nation, IL
Full City Profile · Illinois · Lee County County
4.5
/5.0
A+
Excellent
727
Population
298/sq mi density
$106,419
Median Income
$42,578 per capita
$220,600
Home Value
$179,330 Zillow
49°F
Avg Temperature
A+
Overall
4.5 / 5.0
Strong
A+
Economy
5.0 / 5.0
$106,419 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$220,600 home value, /mo rent
B+
Education
3.6 / 5.0
32.9% bachelor's degree or higher
Lost Nation experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 21°F in January while summers reach 74°F in July. Annual precipitation totals 38.1 inches. The area receives 32.3 inches of snow annually.
Temperature
21°F Jan (-6°C)
74°F Jul (23°C)
| Annual Average | 49.4°F |
| 9% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 74°F (23°C) |
Geography
| Elevation | 746 ft (227 m) |
| Area | 2.6 sq mi (6.6 km²) |
| Population Density | 298/sq mi |
| Coordinates | 41.9120°N, 89.3685°W |
| Timezone | America/Chicago |
| County | Lee County County |
| Nearest Airport | Chicago/Rockford International (RFD) 24 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 54.4 / 100 |
| Social Vulnerability | 23.2 / 100 |
| Community Resilience | 82.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively 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 | 21°F (-6°C) | 1.9 in | Coldest |
| February | 26°F (-4°C) | 1.7 in | Driest |
| March | 37°F (3°C) | 2.3 in | |
| April | 49°F (10°C) | 3.8 in | |
| May | 61°F (16°C) | 5.2 in | Wettest |
| June | 70°F (21°C) | 5.1 in | |
| July | 74°F (23°C) | 4.0 in | Warmest |
| August | 72°F (22°C) | 3.7 in | |
| September | 65°F (18°C) | 3.3 in | |
| October | 52°F (11°C) | 2.8 in | |
| November | 39°F (4°C) | 2.4 in | |
| December | 27°F (-3°C) | 2.0 in |
Lost Nation has a seasonal temperature swing of 52°F / from 21°F in January to 74°F in July. Total annual precipitation is 38.1 inches, with May being the wettest month (5.2") and February the driest (1.7").