Mangum, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mangum, a city in Greer County, Oklahoma.
This Afternoon
99°F
Sunny
Sunny, with a high near 99. Heat index values as high as 100. South wind around 13 mph, with gusts as high as 20 mph.
7-day forecast for Mangum
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 99°F | Sunny | 13 mph S | 0% |
| Tonight | 73°F | Mostly Clear | 13 mph SSE | 1% |
| Saturday | 101°F | Sunny | 10 to 14 mph SSW | 5% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms | 9 to 14 mph S | 25% |
| Sunday | 99°F | Chance Showers And Thunderstorms | 9 mph SSW | 43% |
| Sunday Night | 65°F | Chance Showers And Thunderstorms | 7 to 10 mph ENE | 43% |
| Monday | 90°F | Slight Chance Rain Showers then Mostly Sunny | 9 to 13 mph NNE | 15% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 12 mph NE | 25% |
| Tuesday | 86°F | Chance Rain Showers | 12 mph ENE | 25% |
| Tuesday Night | 61°F | Mostly Cloudy then Slight Chance Rain Showers | 10 mph E | 16% |
| Wednesday | 87°F | Chance Rain Showers | 6 to 9 mph E | 26% |
| Wednesday Night | 63°F | Mostly Cloudy then Chance Showers And Thunderstorms | 8 mph E | 28% |
| Thursday | 88°F | Chance Showers And Thunderstorms | 7 mph ESE | 31% |
| Thursday Night | 64°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph E | 21% |
Forecast source: National Weather Service (api.weather.gov) for Mangum (34.879, -99.504). Updated through the day.
Growing snapshot for Mangum
Last spring frost
Apr 8
First fall frost
Nov 2
Growing season
207 days
Hardiness zone
7b
More local growing data for Mangum: nearby ZIP 73554 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mangum, Ok (6.9 mi from Mangum). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.