Scott AFB, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Scott AFB, a community in St. Clair County, Illinois.
Tonight
55°F
Rain
Rain before 3am, then a slight chance of drizzle between 3am and 5am, then a slight chance of rain. Mostly cloudy, with a low around 55. Southwest wind 8 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
7-day forecast for Scott AFB
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Rain | 8 to 15 mph SW | 85% |
| Wednesday | 64°F | Slight Chance Drizzle then Mostly Cloudy | 7 to 13 mph W | 12% |
| Wednesday Night | 44°F | Partly Cloudy | 6 mph W | 0% |
| Thursday | 66°F | Sunny | 6 to 12 mph W | 1% |
| Thursday Night | 44°F | Mostly Cloudy | 2 to 6 mph NW | 6% |
| Friday | 59°F | Mostly Cloudy | 6 to 12 mph NW | 6% |
| Friday Night | 39°F | Partly Cloudy | 0 to 7 mph N | 1% |
| Saturday | 56°F | Partly Sunny | 0 to 6 mph NW | 0% |
| Saturday Night | 36°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 62°F | Sunny | 0 to 9 mph W | 7% |
| Sunday Night | 36°F | Mostly Clear | 3 mph NW | 5% |
| Monday | 67°F | Sunny | 1 to 8 mph W | 2% |
| Monday Night | 40°F | Mostly Clear | 3 mph SW | 1% |
| Tuesday | 70°F | Sunny | 1 to 8 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Scott AFB (38.543, -89.852). Updated through the day.
Growing snapshot for Scott AFB
Last spring frost
Apr 12
First fall frost
Oct 20
Growing season
189 days
Hardiness zone
6b
More local growing data for Scott AFB: nearby ZIP 62225 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Belleville Siu Rsch, Il (1.6 mi from Scott AFB). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.