Blandinsville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blandinsville, a village in Mcdonough County, Illinois.
Today
75°F
Patchy Fog
Patchy fog and showers and thunderstorms likely. Some of the storms could produce heavy rain. Mostly cloudy. High near 75, with temperatures falling to around 71 in the afternoon. North wind 5 to 10 mph. Chance of precipitation is 70%.
7-day forecast for Blandinsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Patchy Fog | 5 to 10 mph N | 74% |
| Tonight | 60°F | Chance Rain Showers | 10 to 15 mph NE | 47% |
| Monday | 65°F | Chance Rain Showers | 10 to 15 mph NE | 32% |
| Monday Night | 55°F | Chance Rain Showers | 10 mph NE | 36% |
| Tuesday | 63°F | Chance Rain Showers then Mostly Cloudy | 10 mph NE | 36% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 2% |
| Wednesday | 66°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 67°F | Mostly Sunny | 5 mph NE | 2% |
| Thursday Night | 53°F | Mostly Cloudy | 0 to 5 mph NE | 4% |
| Friday | 70°F | Partly Sunny | 0 to 5 mph NE | 4% |
| Friday Night | 52°F | Partly Cloudy | 0 to 5 mph E | 4% |
| Saturday | 72°F | Partly Sunny | 0 to 5 mph E | 9% |
| Saturday Night | 54°F | Mostly Cloudy | 0 to 5 mph E | 9% |
Forecast source: National Weather Service (api.weather.gov) for Blandinsville (40.554, -90.868). Updated through the day.
Growing snapshot for Blandinsville
Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
6a
More local growing data for Blandinsville: nearby ZIP 61420 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Adair
Bardolph
Bushnell
Colchester
Georgetown
Good Hope
Industry
Macomb
Prairie City
Sciota
Tennessee
Climate data from the nearest NOAA station, La Harpe, Il (5.8 mi from Blandinsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.