Assumption, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Assumption, a city in Christian County, Illinois.
Tonight
54°F
Rain
Rain and a slight chance of thunderstorms. Mostly cloudy, with a low around 54. South wind 12 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Assumption
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Rain | 12 to 16 mph S | 80% |
| Wednesday | 62°F | Slight Chance Light Rain then Mostly Cloudy | 9 to 14 mph SW | 18% |
| Wednesday Night | 43°F | Partly Cloudy | 7 mph WSW | 0% |
| Thursday | 63°F | Mostly Sunny | 7 to 13 mph WSW | 2% |
| Thursday Night | 42°F | Mostly Cloudy then Slight Chance Light Rain | 5 mph NW | 19% |
| Friday | 57°F | Partly Sunny | 6 to 10 mph NNW | 13% |
| Friday Night | 36°F | Partly Cloudy | 2 to 7 mph NNW | 6% |
| Saturday | 55°F | Mostly Sunny | 5 mph NW | 1% |
| Saturday Night | 33°F | Partly Cloudy | 2 mph W | 2% |
| Sunday | 61°F | Sunny | 2 to 8 mph W | 7% |
| Sunday Night | 34°F | Mostly Clear | 5 mph WNW | 5% |
| Monday | 64°F | Sunny | 2 to 9 mph WSW | 3% |
| Monday Night | 38°F | Mostly Clear | 5 mph WSW | 2% |
| Tuesday | 67°F | Sunny | 6 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Assumption (39.518, -89.048). Updated through the day.
Growing snapshot for Assumption
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
6a
More local growing data for Assumption: nearby ZIP 62510 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Blue Mound
Bulpitt
Edinburg
Jeisyville
Kincaid
Langleyville
Morrisonville
Mount Auburn
Owaneco
Palmer
Pana
Stonington
Taylorville
Tovey
Climate data from the nearest NOAA station, Pana, Il (11.6 mi from Assumption). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.