Myrtle, MS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Myrtle, a town in Union County, Mississippi.
Overnight
67°F
Clear
Clear, with a low around 67. North northeast wind around 0 mph.
7-day forecast for Myrtle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Clear | 0 mph | 0% |
| Tuesday | 89°F | Sunny | 0 to 5 mph N | 0% |
| Tuesday Night | 69°F | Mostly Clear | 0 to 5 mph NNE | 1% |
| Wednesday | 92°F | Sunny | 0 to 5 mph WNW | 6% |
| Wednesday Night | 71°F | Mostly Clear | 0 mph | 3% |
| Thursday | 94°F | Sunny | 0 to 5 mph SSW | 7% |
| Thursday Night | 73°F | Mostly Clear | 0 to 5 mph S | 10% |
| Friday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 22% |
| Friday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 22% |
| Saturday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 39% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 39% |
| Sunday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 28% |
| Sunday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 28% |
| Monday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 25% |
Forecast source: National Weather Service (api.weather.gov) for Myrtle (34.561, -89.118). Updated through the day.
Growing snapshot for Myrtle
Last spring frost
Apr 8
First fall frost
Oct 28
Growing season
202 days
Hardiness zone
8a
More local growing data for Myrtle: nearby ZIP 38650 weather · frost dates · planting calendar · Mississippi frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hickory Flat, Ms (6.6 mi from Myrtle). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.