Assumption, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Assumption, a city in Christian County, Illinois.
Tonight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. Southeast wind around 7 mph, with gusts as high as 16 mph.
7-day forecast for Assumption
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Partly Cloudy | 7 mph SE | 8% |
| Saturday | 92°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 6 to 9 mph SSW | 20% |
| Saturday Night | 70°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 7 mph SSW | 16% |
| Sunday | 88°F | Chance Showers And Thunderstorms | 2 to 8 mph NW | 34% |
| Sunday Night | 61°F | Showers And Thunderstorms Likely | 9 mph NE | 64% |
| Monday | 74°F | Showers And Thunderstorms Likely | 10 mph NE | 66% |
| Monday Night | 55°F | Showers And Thunderstorms Likely | 8 to 12 mph NE | 64% |
| Tuesday | 70°F | Chance Rain Showers then Mostly Cloudy | 12 mph NNE | 31% |
| Tuesday Night | 52°F | Mostly Cloudy | 5 to 12 mph NNE | 7% |
| Wednesday | 72°F | Partly Sunny | 9 mph NNE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 2 to 8 mph NNE | 2% |
| Thursday | 73°F | Mostly Sunny | 3 to 8 mph N | 3% |
| Thursday Night | 54°F | Partly Cloudy | 3 to 7 mph NNE | 5% |
| Friday | 75°F | Mostly Sunny | 3 to 8 mph NNE | 5% |
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 Sep 19, 2026.