Grandview, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grandview, a village in Sangamon County, Illinois.
This Afternoon
72°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy, with a high near 72. South southeast wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Grandview
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Light Rain | 18 mph SSE | 84% |
| Tonight | 55°F | Rain | 12 to 17 mph S | 80% |
| Wednesday | 60°F | Chance Rain Showers then Mostly Cloudy | 10 to 14 mph SW | 12% |
| Wednesday Night | 45°F | Mostly Cloudy | 9 mph SW | 1% |
| Thursday | 61°F | Mostly Sunny | 7 to 12 mph WSW | 4% |
| Thursday Night | 44°F | Mostly Cloudy then Slight Chance Light Rain | 6 mph NW | 22% |
| Friday | 56°F | Mostly Cloudy | 6 to 9 mph NNW | 12% |
| Friday Night | 38°F | Mostly Cloudy | 1 to 8 mph N | 4% |
| Saturday | 54°F | Mostly Sunny | 1 to 5 mph NW | 1% |
| Saturday Night | 36°F | Partly Cloudy | 2 mph W | 1% |
| Sunday | 60°F | Sunny | 2 to 8 mph W | 7% |
| Sunday Night | 36°F | Mostly Clear | 2 to 6 mph WNW | 5% |
| Monday | 64°F | Sunny | 2 to 9 mph SW | 2% |
| Monday Night | 41°F | Mostly Clear | 3 to 7 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Grandview (39.818, -89.618). Updated through the day.
Growing snapshot for Grandview
Last spring frost
Apr 14
First fall frost
Oct 20
Growing season
187 days
Hardiness zone
6a
More local growing data for Grandview: nearby ZIP 62702 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Springfield Capital Ap, Il (2.6 mi from Grandview). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.