Glen St. Mary, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glen St. Mary, a town in Baker County, Florida.
This Afternoon
90°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 4pm and 5pm. Mostly sunny. High near 90, with temperatures falling to around 87 in the afternoon. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
7-day forecast for Glen St. Mary
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 90°F | Slight Chance Showers And Thunderstorms | 10 mph E | 15% |
| Tonight | 70°F | Mostly Clear | 0 to 9 mph NE | 4% |
| Saturday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 8 mph NE | 15% |
| Saturday Night | 70°F | Partly Cloudy | 0 to 8 mph E | 8% |
| Sunday | 89°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 7 mph NE | 61% |
| Sunday Night | 70°F | Showers And Thunderstorms Likely then Mostly Cloudy | 0 to 5 mph NE | 61% |
| Monday | 89°F | Showers And Thunderstorms Likely | 0 to 7 mph NE | 71% |
| Monday Night | 70°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 6 mph NE | 71% |
| Tuesday | 89°F | Slight Chance Showers And Thunderstorms | 0 to 7 mph NE | 73% |
| Tuesday Night | 71°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 7 mph NE | 73% |
| Wednesday | 88°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 10 mph NE | 52% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 2 to 9 mph NE | 52% |
| Thursday | 86°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 14 mph NE | 31% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 to 12 mph NE | 31% |
Forecast source: National Weather Service (api.weather.gov) for Glen St. Mary (30.275, -82.160). Updated through the day.
Growing snapshot for Glen St. Mary
Last spring frost
Mar 8
First fall frost
Dec 1
Growing season
272 days
Hardiness zone
9a
More local growing data for Glen St. Mary: nearby ZIP 32063 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Glen St Mary 1 W, Fl (3.9 mi from Glen St. Mary). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.