Harman US

Manchester, OK Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Manchester, a town in Grant County, Oklahoma.

Today
100°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Mostly sunny. High near 100, with temperatures falling to around 96 in the afternoon. Heat index values as high as 101. South southwest wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

7-day forecast for Manchester

WhenTempForecastWindPrecip
Today 100°F Mostly Sunny then Slight Chance Showers And Thunderstorms 13 mph SSW 15%
Tonight 70°F Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 5 to 12 mph S 63%
Sunday 90°F Chance Showers And Thunderstorms 7 mph NE 50%
Sunday Night 61°F Chance Showers And Thunderstorms 6 to 9 mph NNE 40%
Monday 81°F Mostly Sunny 9 mph NNE 12%
Monday Night 57°F Partly Cloudy 5 to 8 mph NE 4%
Tuesday 77°F Mostly Sunny 7 mph NE 5%
Tuesday Night 54°F Partly Cloudy 7 mph ENE 3%
Wednesday 79°F Mostly Sunny 6 mph E 8%
Wednesday Night 58°F Partly Cloudy then Slight Chance Showers And Thunderstorms 6 mph ESE 17%
Thursday 82°F Chance Showers And Thunderstorms 6 mph SE 38%
Thursday Night 62°F Chance Rain Showers 6 mph SE 30%
Friday 83°F Chance Rain Showers 7 mph SE 30%
Friday Night 63°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 6 mph ESE 22%

Forecast source: National Weather Service (api.weather.gov) for Manchester (36.994, -98.035). Updated through the day.

Growing snapshot for Manchester

Last spring frost
Apr 5
First fall frost
Nov 1
Growing season
209 days
Hardiness zone
7a

More local growing data for Manchester: nearby ZIP 73758 weather · frost dates · planting calendar · Oklahoma frost dates

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Climate data from the nearest NOAA station, Great Salt Plains Dam, Ok (13.5 mi from Manchester). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.