Glen Allen, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glen Allen, a town in Bollinger County, Missouri.
This Afternoon
97°F
Sunny
Sunny, with a high near 97. Southwest wind around 6 mph.
7-day forecast for Glen Allen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 97°F | Sunny | 6 mph SW | 0% |
| Tonight | 70°F | Mostly Clear | 2 mph SW | 1% |
| Sunday | 95°F | Mostly Sunny | 5 mph WSW | 1% |
| Sunday Night | 67°F | Partly Cloudy then Chance Showers And Thunderstorms | 3 mph NNE | 30% |
| Monday | 88°F | Chance Showers And Thunderstorms | 5 mph NNE | 49% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 5 mph NNE | 49% |
| Tuesday | 77°F | Chance Showers And Thunderstorms then Partly Sunny | 8 mph N | 30% |
| Tuesday Night | 55°F | Partly Cloudy | 3 to 8 mph N | 3% |
| Wednesday | 75°F | Mostly Sunny | 7 mph N | 1% |
| Wednesday Night | 53°F | Partly Cloudy | 2 to 6 mph N | 0% |
| Thursday | 77°F | Mostly Sunny | 5 mph NNE | 1% |
| Thursday Night | 56°F | Partly Cloudy | 3 mph NNE | 1% |
| Friday | 79°F | Partly Sunny | 2 to 6 mph NNE | 4% |
| Friday Night | 57°F | Partly Cloudy | 1 to 5 mph NNE | 4% |
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 Sep 19, 2026.