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
64°F
Patchy Fog
Patchy fog after 5am. Mostly clear. Low around 64, with temperatures rising to around 66 overnight. Wind around 0 mph.
7-day forecast for Glen Allen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Patchy Fog | 0 mph | 0% |
| Tuesday | 87°F | Patchy Fog then Sunny | 2 mph ENE | 1% |
| Tuesday Night | 65°F | Mostly Clear | 2 mph E | 0% |
| Wednesday | 89°F | Sunny | 0 to 3 mph S | 0% |
| Wednesday Night | 69°F | Partly Cloudy | 2 mph S | 7% |
| Thursday | 88°F | Chance Showers And Thunderstorms | 1 to 5 mph SSW | 34% |
| Thursday Night | 70°F | Slight Chance Showers And Thunderstorms | 1 to 5 mph S | 55% |
| Friday | 87°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 1 to 5 mph SSW | 55% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 2 mph SW | 38% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 3 mph SSW | 35% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SSW | 17% |
| Sunday | 89°F | Sunny | 1 to 7 mph SSW | 6% |
| Sunday Night | 71°F | Mostly Clear | 2 to 6 mph SSW | 4% |
| Monday | 91°F | Sunny | 2 to 7 mph SSW | 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 Aug 4, 2026.