Frankfort, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Frankfort, a village in Will County, Illinois.
This Afternoon
73°F
Chance Rain
A chance of rain. Mostly cloudy. High near 73, with temperatures falling to around 70 in the afternoon. South wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
7-day forecast for Frankfort
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Chance Rain | 15 to 20 mph S | 37% |
| Tonight | 60°F | Rain | 15 to 20 mph S | 81% |
| Wednesday | 64°F | Rain Likely then Mostly Cloudy | 15 mph SSW | 56% |
| Wednesday Night | 48°F | Mostly Cloudy | 15 mph SW | 11% |
| Thursday | 58°F | Mostly Cloudy then Slight Chance Rain | 10 to 15 mph WSW | 21% |
| Thursday Night | 43°F | Chance Rain | 5 to 10 mph WNW | 39% |
| Friday | 53°F | Chance Rain | 10 mph N | 26% |
| Friday Night | 37°F | Mostly Cloudy | 5 to 10 mph NNW | 12% |
| Saturday | 52°F | Mostly Sunny | 5 mph WNW | 10% |
| Saturday Night | 34°F | Partly Cloudy | 0 to 5 mph WSW | 4% |
| Sunday | 56°F | Mostly Sunny | 5 to 10 mph W | 12% |
| Sunday Night | 35°F | Mostly Clear | 5 to 10 mph W | 8% |
| Monday | 61°F | Sunny | 5 to 15 mph WSW | 5% |
| Monday Night | 40°F | Mostly Clear | 5 to 10 mph WSW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Frankfort (41.507, -87.871). Updated through the day.
Growing snapshot for Frankfort
Last spring frost
Apr 20
First fall frost
Oct 22
Growing season
184 days
Hardiness zone
6a
More local growing data for Frankfort: nearby ZIP 60448 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Romeoville Wfo, Il (11 mi from Frankfort). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.