Lost Nation, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lost Nation, a community in Lee County, Illinois.
This Afternoon
72°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy, with a high near 72. South southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Lost Nation
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Showers And Thunderstorms Likely | 5 mph SSE | 72% |
| Tonight | 63°F | Showers And Thunderstorms | 0 to 5 mph N | 100% |
| Sunday | 66°F | Showers And Thunderstorms | 10 to 15 mph NE | 77% |
| Sunday Night | 54°F | Chance Rain Showers | 10 to 15 mph NE | 27% |
| Monday | 63°F | Chance Rain Showers | 10 to 15 mph ENE | 48% |
| Monday Night | 50°F | Rain Showers Likely | 10 mph NE | 56% |
| Tuesday | 62°F | Rain Showers Likely | 10 mph NE | 56% |
| Tuesday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 15% |
| Wednesday | 64°F | Partly Sunny | 5 to 10 mph NE | 5% |
| Wednesday Night | 49°F | Mostly Cloudy | 0 to 5 mph NNE | 0% |
| Thursday | 67°F | Partly Sunny | 0 to 5 mph NE | 6% |
| Thursday Night | 52°F | Mostly Cloudy | 0 to 5 mph NE | 9% |
| Friday | 70°F | Partly Sunny | 0 to 5 mph NE | 7% |
| Friday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Lost Nation (41.912, -89.368). Updated through the day.
Growing snapshot for Lost Nation
Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
5b
More local growing data for Lost Nation: nearby ZIP 61057 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Amboy
Ashton
Compton
Dixon
Franklin Grove
Grand Detour
Harmon
Lee
Lee Center
Nachusa
Nelson
Paw Paw
Steward
Sublette
West Brooklyn
Climate data from the nearest NOAA station, Dixon 1W, Il (6.7 mi from Lost Nation). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.