Auburn, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Auburn, a city in Sangamon County, Illinois.
Tonight
71°F
Partly Cloudy
Partly cloudy, with a low around 71. Southeast wind around 8 mph.
7-day forecast for Auburn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Partly Cloudy | 8 mph SE | 11% |
| Saturday | 94°F | Partly Sunny | 6 to 9 mph SSW | 7% |
| Saturday Night | 70°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph SSW | 21% |
| Sunday | 88°F | Chance Rain Showers | 2 to 7 mph NW | 45% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 66% |
| Monday | 74°F | Showers And Thunderstorms Likely | 8 to 12 mph NE | 66% |
| Monday Night | 56°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 47% |
| Tuesday | 70°F | Chance Rain Showers then Mostly Cloudy | 12 mph NNE | 31% |
| Tuesday Night | 52°F | Mostly Cloudy | 5 to 10 mph NNE | 4% |
| Wednesday | 73°F | Partly Sunny | 6 to 9 mph NNE | 1% |
| Wednesday Night | 53°F | Partly Cloudy | 2 to 7 mph NNE | 1% |
| Thursday | 73°F | Mostly Sunny | 3 to 7 mph NNE | 3% |
| Thursday Night | 55°F | Partly Cloudy | 2 to 6 mph NNE | 5% |
| Friday | 75°F | Mostly Sunny | 3 to 7 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Auburn (39.576, -89.744). Updated through the day.
Growing snapshot for Auburn
Last spring frost
Apr 7
First fall frost
Oct 29
Growing season
205 days
Hardiness zone
6a
More local growing data for Auburn: nearby ZIP 62615 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Virden, Il (5.6 mi from Auburn). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.