Griggsville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Griggsville, a city in Pike County, Illinois.
Today
57°F
Slight Chance Drizzle
A slight chance of drizzle before 2pm. Mostly cloudy, with a high near 57. West wind 10 to 15 mph, with gusts as high as 23 mph.
7-day forecast for Griggsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 57°F | Slight Chance Drizzle | 10 to 15 mph W | 12% |
| Tonight | 43°F | Partly Cloudy | 9 mph SW | 1% |
| Thursday | 59°F | Partly Sunny | 9 to 13 mph W | 1% |
| Thursday Night | 44°F | Mostly Cloudy | 5 to 8 mph NW | 8% |
| Friday | 54°F | Partly Sunny | 7 to 10 mph N | 4% |
| Friday Night | 33°F | Partly Cloudy | 1 to 6 mph N | 0% |
| Saturday | 54°F | Mostly Sunny | 3 mph NW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph NW | 0% |
| Sunday | 59°F | Sunny | 2 to 7 mph W | 1% |
| Sunday Night | 35°F | Clear | 2 mph W | 0% |
| Monday | 65°F | Sunny | 1 to 7 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 3 mph SW | 0% |
| Tuesday | 67°F | Sunny | 3 mph NW | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 1 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Griggsville (39.708, -90.728). Updated through the day.
Growing snapshot for Griggsville
Last spring frost
Apr 18
First fall frost
Oct 15
Growing season
179 days
Hardiness zone
6a
More local growing data for Griggsville: nearby ZIP 62340 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Perry 6 Nw, Il (7.1 mi from Griggsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.