Knollwood, TX Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Knollwood, a city in Grayson County, Texas.

This Afternoon

98°F

Sunny

Sunny, with a high near 98. Heat index values as high as 98. South southeast wind around 5 mph.

7-day forecast for Knollwood

When	Temp	Forecast	Wind	Precip
This Afternoon	98°F	Sunny	5 mph SSE	0%
Tonight	75°F	Mostly Clear	5 mph S	0%
Saturday	98°F	Sunny	5 to 10 mph SSW	0%
Saturday Night	76°F	Mostly Clear	5 to 10 mph S	0%
Sunday	98°F	Mostly Sunny then Slight Chance Showers And Thunderstorms	5 to 10 mph S	17%
Sunday Night	73°F	Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms	5 mph S	54%
Monday	92°F	Chance Rain Showers then Slight Chance Showers And Thunderstorms	5 mph SW	54%
Monday Night	70°F	Slight Chance Showers And Thunderstorms then Partly Cloudy	5 mph NE	17%
Tuesday	90°F	Mostly Sunny	5 to 10 mph NNE	10%
Tuesday Night	68°F	Partly Cloudy	5 to 10 mph NE	3%
Wednesday	90°F	Mostly Sunny	5 to 10 mph ENE	7%
Wednesday Night	69°F	Partly Cloudy	5 mph ENE	2%
Thursday	91°F	Mostly Sunny	5 mph E	7%
Thursday Night	69°F	Partly Cloudy	5 mph ENE	6%

Forecast source: National Weather Service (api.weather.gov) for Knollwood (33.689, -96.618). Updated through the day.

Growing snapshot for Knollwood

Last spring frost

Mar 14

First fall frost

Nov 19

Growing season

250 days

Hardiness zone

More local growing data for Knollwood: nearby ZIP 75020 weather · frost dates · planting calendar · Texas frost dates

Nearby towns & communities

Bells Callisburg Collinsville Denison Dorchester Gunter Howe Lake Kiowa Pottsboro Sadler Sherman Sherwood Shores Southmayd Tioga Tom Bean Van Alstyne Whitesboro Whitewright

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Climate data from the nearest NOAA station, Sherman, Tx (5.2 mi from Knollwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.