Assumption, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Assumption, a city in Christian County, Illinois.
Today
86°F
Sunny
Sunny, with a high near 86. South southeast wind around 5 mph.
7-day forecast for Assumption
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 5 mph SSE | 0% |
| Tonight | 66°F | Mostly Clear | 5 mph SSE | 0% |
| Wednesday | 88°F | Mostly Sunny | 3 to 7 mph S | 6% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph S | 70% |
| Thursday | 83°F | Showers And Thunderstorms | 3 to 7 mph SSW | 79% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms | 3 mph S | 26% |
| Friday | 84°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 3 mph SW | 17% |
| Friday Night | 66°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 2 mph SSW | 23% |
| Saturday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 5 mph SSW | 23% |
| Saturday Night | 70°F | Mostly Clear | 3 to 7 mph S | 12% |
| Sunday | 89°F | Sunny | 7 to 12 mph SSW | 6% |
| Sunday Night | 71°F | Mostly Clear | 10 mph SSW | 9% |
| Monday | 90°F | Mostly Sunny | 10 mph SSW | 11% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 9 mph SSW | 22% |
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 Aug 4, 2026.