Lynn Center, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lynn Center, a community in Henry County, Illinois.
This Afternoon
68°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a high near 68. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Lynn Center
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Showers And Thunderstorms | 15 mph S | 84% |
| Tonight | 51°F | Showers And Thunderstorms | 10 to 15 mph S | 81% |
| Wednesday | 56°F | Chance Rain Showers | 15 mph SW | 27% |
| Wednesday Night | 44°F | Mostly Cloudy | 15 mph SW | 13% |
| Thursday | 55°F | Chance Rain Showers | 10 to 15 mph W | 35% |
| Thursday Night | 42°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NW | 30% |
| Friday | 52°F | Partly Sunny | 5 to 10 mph N | 13% |
| Friday Night | 34°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph W | 3% |
| Saturday Night | 35°F | Partly Cloudy | 0 to 5 mph W | 3% |
| Sunday | 59°F | Mostly Sunny | 5 to 10 mph W | 11% |
| Sunday Night | 36°F | Mostly Clear | 5 mph W | 3% |
| Monday | 63°F | Sunny | 5 to 15 mph SW | 1% |
| Monday Night | 40°F | Mostly Clear | 5 to 10 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Lynn Center (41.295, -90.359). Updated through the day.
Growing snapshot for Lynn Center
Last spring frost
Apr 28
First fall frost
Oct 12
Growing season
165 days
Hardiness zone
5b
More local growing data for Lynn Center: nearby ZIP 61262 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Alpha
Andover
Annawan
Atkinson
Bishop Hill
Cambridge
Cleveland
Colona
Galva
Geneseo
Hooppole
Kewanee
Ophiem
Orion
Osco
Swedona
Woodhull
Climate data from the nearest NOAA station, Altona, Il (14.4 mi from Lynn Center). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.