Assumption, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Assumption, a city in Christian County, Illinois.
This Afternoon
90°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 90. West southwest wind around 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Assumption
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 90°F | Slight Chance Showers And Thunderstorms | 6 mph WSW | 18% |
| Tonight | 69°F | Mostly Cloudy | 6 mph S | 10% |
| Sunday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph NW | 35% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 8 to 12 mph NNE | 56% |
| Monday | 74°F | Showers And Thunderstorms Likely | 12 mph NE | 66% |
| Monday Night | 55°F | Chance Rain Showers | 7 to 10 mph NE | 37% |
| Tuesday | 69°F | Chance Rain Showers | 12 mph NE | 33% |
| Tuesday Night | 52°F | Mostly Cloudy | 5 to 10 mph NNE | 8% |
| Wednesday | 70°F | Partly Sunny | 9 mph NNE | 3% |
| Wednesday Night | 53°F | Partly Cloudy | 3 to 8 mph NNE | 0% |
| Thursday | 74°F | Partly Sunny | 3 to 7 mph NNE | 1% |
| Thursday Night | 55°F | Mostly Cloudy | 2 to 6 mph NNE | 8% |
| Friday | 76°F | Partly Sunny then Slight Chance Rain Showers | 3 to 7 mph NNE | 15% |
| Friday Night | 54°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 6 mph NE | 15% |
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.