Glen Allen, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glen Allen, a town in Bollinger County, Missouri.
Overnight
51°F
Mostly Cloudy
Mostly cloudy. Low around 51, with temperatures rising to around 54 overnight. Southwest wind around 5 mph.
7-day forecast for Glen Allen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Mostly Cloudy | 5 mph SW | 12% |
| Wednesday | 67°F | Partly Sunny | 3 to 7 mph WSW | 1% |
| Wednesday Night | 37°F | Mostly Clear | 3 mph WSW | 0% |
| Thursday | 70°F | Sunny | 1 to 5 mph WSW | 0% |
| Thursday Night | 40°F | Mostly Cloudy | 2 mph WNW | 8% |
| Friday | 62°F | Partly Sunny | 2 to 7 mph NNW | 1% |
| Friday Night | 36°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 58°F | Mostly Sunny | 3 mph N | 0% |
| Saturday Night | 31°F | Partly Cloudy | 1 mph NW | 1% |
| Sunday | 63°F | Sunny | 0 to 5 mph WNW | 6% |
| Sunday Night | 31°F | Mostly Clear | 2 mph NW | 4% |
| Monday | 67°F | Sunny | 1 to 5 mph W | 1% |
| Monday Night | 34°F | Mostly Clear | 3 mph WSW | 0% |
| Tuesday | 71°F | Sunny | 3 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Glen Allen (37.317, -90.028). Updated through the day.
Growing snapshot for Glen Allen
Last spring frost
Apr 12
First fall frost
Oct 23
Growing season
193 days
Hardiness zone
6b
More local growing data for Glen Allen: nearby ZIP 63764 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Marble Hill, Mo (1.7 mi from Glen Allen). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.