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
76°F
Mostly Sunny
Mostly sunny, with a high near 76. Southeast wind around 10 mph, with gusts as high as 20 mph.
7-day forecast for Lynn Center
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Mostly Sunny | 10 mph SE | 8% |
| Tonight | 68°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 mph SE | 45% |
| Saturday | 83°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph S | 55% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph N | 79% |
| Sunday | 72°F | Showers And Thunderstorms | 5 to 15 mph NE | 79% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 15 mph NE | 63% |
| Monday | 64°F | Showers And Thunderstorms Likely | 15 mph NE | 60% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 50% |
| Tuesday | 63°F | Chance Rain Showers | 15 mph NE | 43% |
| Tuesday Night | 49°F | Mostly Cloudy | 5 to 15 mph NE | 5% |
| Wednesday | 67°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Thursday | 68°F | Mostly Sunny | 5 mph NE | 4% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph NE | 6% |
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
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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 Sep 18, 2026.