Lynn Center, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lynn Center, a community in Henry County, Illinois.
Today
87°F
Mostly Sunny
Mostly sunny. High near 87, with temperatures falling to around 85 in the afternoon. Southwest wind 5 to 10 mph.
7-day forecast for Lynn Center
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny | 5 to 10 mph SW | 2% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 5 mph E | 52% |
| Wednesday | 79°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph N | 77% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 0 to 5 mph N | 81% |
| Thursday | 80°F | Slight Chance Showers And Thunderstorms | 5 mph NE | 56% |
| Thursday Night | 62°F | Mostly Clear | 0 to 5 mph NE | 13% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph S | 10% |
| Friday Night | 65°F | Mostly Clear | 0 to 5 mph S | 10% |
| Saturday | 85°F | Sunny | 5 to 10 mph SW | 8% |
| Saturday Night | 70°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 15% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Sunny | 10 to 15 mph SW | 15% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 32% |
| Monday | 86°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 32% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms | 10 mph SW | 33% |
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 Aug 4, 2026.