Arnold Line, MS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arnold Line, a community in Lamar County, Mississippi.
Today
95°F
Sunny
Sunny, with a high near 95. Heat index values as high as 97. North northwest wind 0 to 5 mph.
7-day forecast for Arnold Line
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Sunny | 0 to 5 mph NNW | 0% |
| Tonight | 72°F | Mostly Clear | 0 mph | 0% |
| Wednesday | 97°F | Sunny | 0 to 5 mph NW | 3% |
| Wednesday Night | 74°F | Mostly Clear | 0 to 5 mph SSW | 2% |
| Thursday | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSE | 19% |
| Thursday Night | 73°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 0 to 5 mph S | 19% |
| Friday | 96°F | Patchy Fog then Sunny | 0 to 5 mph E | 14% |
| Friday Night | 73°F | Partly Cloudy then Slight Chance Rain Showers | 0 to 5 mph SSE | 15% |
| Saturday | 96°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph ESE | 17% |
| Saturday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph ESE | 17% |
| Sunday | 95°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph ESE | 47% |
| Sunday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 47% |
| Monday | 95°F | Chance Showers And Thunderstorms | 0 to 5 mph SSE | 45% |
| Monday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 45% |
Forecast source: National Weather Service (api.weather.gov) for Arnold Line (31.337, -89.377). Updated through the day.
Growing snapshot for Arnold Line
Last spring frost
Mar 7
First fall frost
Nov 23
Growing season
261 days
Hardiness zone
8b
More local growing data for Arnold Line: nearby ZIP 39402 weather · frost dates · planting calendar · Mississippi frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hattiesburg 5Sw, Ms (7 mi from Arnold Line). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.