Spring Bay, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Spring Bay, a village in Peoria County, Illinois.
Today
85°F
Slight Chance Showers And Thunderstorms then Cloudy
A slight chance of showers and thunderstorms before noon. Cloudy, with a high near 85. Southeast wind around 7 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Spring Bay
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Slight Chance Showers And Thunderstorms then Cloudy | 7 mph SE | 24% |
| Tonight | 68°F | Showers And Thunderstorms Likely | 3 mph S | 74% |
| Sunday | 73°F | Showers And Thunderstorms Likely | 3 to 13 mph N | 71% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms | 17 mph NE | 55% |
| Monday | 64°F | Showers And Thunderstorms Likely | 16 mph ENE | 63% |
| Monday Night | 54°F | Chance Rain Showers | 13 to 16 mph NE | 45% |
| Tuesday | 62°F | Slight Chance Rain Showers | 14 mph NE | 21% |
| Tuesday Night | 52°F | Partly Cloudy | 6 to 14 mph NNE | 12% |
| Wednesday | 66°F | Mostly Sunny | 7 to 10 mph NNE | 4% |
| Wednesday Night | 54°F | Partly Cloudy | 3 to 8 mph NNE | 1% |
| Thursday | 68°F | Mostly Sunny | 6 mph NNE | 3% |
| Thursday Night | 56°F | Partly Cloudy | 5 mph NE | 3% |
| Friday | 71°F | Mostly Sunny | 3 to 7 mph NE | 3% |
| Friday Night | 55°F | Partly Cloudy | 2 to 6 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Spring Bay (40.821, -89.531). Updated through the day.
Growing snapshot for Spring Bay
Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
6a
More local growing data for Spring Bay: nearby ZIP 61552 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Peoria Gtr Peoria Ap, Il (12.3 mi from Spring Bay). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.