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Grayson County TX Weather - Clear - 95°F
Clear
95°F
Updated 5:25 pm
Feels Like 91°F
Humidity 28%
Wind SSE 14 mph
Barometer  29.91 in
Dew Point 57°F
Grayson County TX Weather - Clear - 35°C
Clear
35°C
Updated 5:25 pm
Feels Like 33°C
Humidity 28%
Wind SSE 23 km/h
Barometer  101.2 kPa
Dew Point 14°C
Grayson County, TX Weather and Current Conditionsgrayson county tx weather forecast

Grayson County, TX Weather Forecast

Grayson County Texas WeatherGrayson County, Texas Weather Weather Forecast
14 day API Grayson County, TX weather forecast. Note. Our 7-day weather forecast for Grayson County, Texas is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Grayson County, TX Weather Forecast Dated: 525 PM Sat Sep 19 2026
Expect a very warm period with more clouds than sun and frequent chances of rain over the coming period. moderate humidity and no major pressure swings will dominate.

Saturday, September 19, 2026

Mid-Morning
Grayson County Weather - 2026-09-19 - Morning - Sunny
79°F 26°C
Sunny
Mid-Afternoon
Grayson County Weather - 2026-09-19 - Afternoon - Overcast
95°F 35°C
Overcast
Early-Evening
Grayson County Weather - 2026-09-19 - Evening - Partly Cloudy
91°F 33°C
Partly Cloudy
Very hot with temperatures reaching 95°F 35°C, partly cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling. Winds turning from the SSW to the SSE at 10 mph 16 km/h.

Sunday, September 20, 2026

Mid-Morning
Grayson County Weather - 2026-09-20 - Morning - Cloudy
82°F 28°C
Cloudy
Mid-Afternoon
Grayson County Weather - 2026-09-20 - Afternoon - Nearby Thunderstorms
98°F 37°C
Nearby Thunderstorms
Early-Evening
Grayson County Weather - 2026-09-20 - Evening - Cloudy
89°F 32°C
Cloudy
Hot and sweltering around 98°F 37°C, locally heavy thunderstorms at times, with lower humidity and barometric pressure falling. Winds blowing from the S at 14 mph 22 km/h.

Monday, September 21, 2026

Mid-Morning
Grayson County Weather - 2026-09-21 - Morning - Scattered Showers
74°F 23°C
Scattered Showers
Mid-Afternoon
Grayson County Weather - 2026-09-21 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Grayson County Weather - 2026-09-21 - Evening - Sunny
86°F 30°C
Sunny
Sizzling hot with 91°F 33°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds moving from the NNE to the NE at 8 mph 12 km/h.

Tuesday, September 22, 2026

Mid-Morning
Grayson County Weather - 2026-09-22 - Morning - Overcast
71°F 22°C
Overcast
Mid-Afternoon
Grayson County Weather - 2026-09-22 - Afternoon - Sunny
92°F 33°C
Sunny
Early-Evening
Grayson County Weather - 2026-09-22 - Evening - Sunny
87°F 30°C
Sunny
Hot temperatures near 92°F 33°C, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds swinging from the NNE to the NE at 14 mph 22 km/h. Gusts up to 22 mph 36 km/h.

Wednesday, September 23, 2026

Mid-Morning
Grayson County Weather - 2026-09-23 - Morning - Cloudy
76°F 24°C
Cloudy
Mid-Afternoon
Grayson County Weather - 2026-09-23 - Afternoon - Overcast
93°F 34°C
Overcast
Early-Evening
Grayson County Weather - 2026-09-23 - Evening - Overcast
88°F 32°C
Overcast
Very hot with a high of 93°F 34°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the E to the ENE at 11 mph 18 km/h.

Thursday, September 24, 2026

Mid-Morning
Grayson County Weather - 2026-09-24 - Morning - Overcast
79°F 26°C
Overcast
Mid-Afternoon
Grayson County Weather - 2026-09-24 - Afternoon - Overcast
92°F 34°C
Overcast
Early-Evening
Grayson County Weather - 2026-09-24 - Evening - Overcast
89°F 32°C
Overcast
Very hot with temperatures reaching 92°F 34°C, partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds SE at 9 mph 15 km/h.

Friday, September 25, 2026

Mid-Morning
Grayson County Weather - 2026-09-25 - Morning - Overcast
78°F 26°C
Overcast
Mid-Afternoon
Grayson County Weather - 2026-09-25 - Afternoon - Scattered Showers
94°F 34°C
Scattered Showers
Early-Evening
Grayson County Weather - 2026-09-25 - Evening - Light Showers
85°F 29°C
Light Showers
Hot and sweltering around 94°F 34°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds switching from the SSE to the WSW at 6 mph 10 km/h.

Saturday, September 26, 2026

Mid-Morning
Grayson County Weather - 2026-09-26 - Morning - Light Showers
71°F 22°C
Light Showers
Mid-Afternoon
Grayson County Weather - 2026-09-26 - Afternoon - Sunny
85°F 29°C
Sunny
Early-Evening
Grayson County Weather - 2026-09-26 - Evening - Sunny
84°F 29°C
Sunny
Quite warm around 85°F 29°C, scattered morning showers before drying out later, with lower humidity and steady pressure.

Sunday, September 27, 2026

Mid-Morning
Grayson County Weather - 2026-09-27 - Morning - Sunny
68°F 20°C
Sunny
Mid-Afternoon
Grayson County Weather - 2026-09-27 - Afternoon - Sunny
83°F 28°C
Sunny
Early-Evening
Grayson County Weather - 2026-09-27 - Evening - Sunny
79°F 26°C
Sunny
Warm temperatures up to 83°F 28°C, sunny through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds moving from the NNE to the ENE at 7 mph 12 km/h.

Monday, September 28, 2026

Mid-Morning
Grayson County Weather - 2026-09-28 - Morning - Overcast
77°F 25°C
Overcast
Mid-Afternoon
Grayson County Weather - 2026-09-28 - Afternoon - Overcast
86°F 30°C
Overcast
Early-Evening
Grayson County Weather - 2026-09-28 - Evening - Overcast
75°F 24°C
Overcast
Very warm with a high of 86°F 30°C, overcast throughout the day, with increasing humidity and steady pressure. Winds swinging from the SSE to the NW at 7 mph 12 km/h.

Tuesday, September 29, 2026

Mid-Morning
Grayson County Weather - 2026-09-29 - Morning - Scattered Showers
70°F 21°C
Scattered Showers
Mid-Afternoon
Grayson County Weather - 2026-09-29 - Afternoon - Overcast
75°F 24°C
Overcast
Early-Evening
Grayson County Weather - 2026-09-29 - Evening - Overcast
70°F 21°C
Overcast
Pleasant near 75°F 24°C, scattered downpours possible, with steady humidity and steady pressure.

Wednesday, September 30, 2026

Mid-Morning
Grayson County Weather - 2026-09-30 - Morning - Light Showers
63°F 17°C
Light Showers
Mid-Afternoon
Grayson County Weather - 2026-09-30 - Afternoon - Light Showers
64°F 18°C
Light Showers
Early-Evening
Grayson County Weather - 2026-09-30 - Evening - Heavy Rain Showers
64°F 18°C
Heavy Rain Showers
Cool with a high near 64°F 18°C, on-and-off showers throughout the day, with steady humidity and steady pressure.

Thursday, October 1, 2026

Mid-Morning
Grayson County Weather - 2026-10-01 - Morning - Light Showers
65°F 18°C
Light Showers
Mid-Afternoon
Grayson County Weather - 2026-10-01 - Afternoon - Scattered Showers
71°F 22°C
Scattered Showers
Early-Evening
Grayson County Weather - 2026-10-01 - Evening - Scattered Showers
69°F 21°C
Scattered Showers
Enjoyable around 71°F 22°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds shifting from the ESE to the ENE at 10 mph 16 km/h.

Friday, October 2, 2026

Mid-Morning
Grayson County Weather - 2026-10-02 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Grayson County Weather - 2026-10-02 - Afternoon - Overcast
76°F 25°C
Overcast
Early-Evening
Grayson County Weather - 2026-10-02 - Evening - Overcast
76°F 25°C
Overcast
Mild temperatures up to 76°F 25°C, overcast throughout the day, with lower humidity and steady pressure. Winds turning from the ENE to the E at 7 mph 11 km/h.

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Weather by the Numbers

Sat, 19th
Grayson County TX Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 96°F 35°C
Lo: 76°F 25°C
Sunrise 07:13 AM
Sunset 07:28 PM
Wind SSW 10 mph15 km/h
Dew Point 62°F17°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 10% *
Humidity 39%
Sun, 20th
Grayson County TX Weather - Sunday, Sep 20, 2026 - Overcast
Hi: 99°F 37°C
Lo: 77°F 25°C
Sunrise 07:14 AM
Sunset 07:26 PM
Wind SSW 16 mph26 km/h
Dew Point 63°F17°C
uv Index 6
Barometric Pressure 29.85 in1011 mb
POP 10% *
Humidity 39%
Mon, 21st
Grayson County TX Weather - Monday, Sep 21, 2026 - Overcast
Hi: 92°F 33°C
Lo: 74°F 23°C
Sunrise 07:14 AM
Sunset 07:25 PM
Wind SE 3 mph5 km/h
Dew Point 65°F18°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 12% *
Humidity 55%
Tue, 22nd
Grayson County TX Weather - Tuesday, Sep 22, 2026 - Sunny
Hi: 94°F 34°C
Lo: 68°F 20°C
Sunrise 07:15 AM
Sunset 07:23 PM
Wind NE 8 mph12 km/h
Dew Point 64°F18°C
uv Index 7
Barometric Pressure 30 in1016 mb
POP 2% *
Humidity 51%
Wed, 23rd
Grayson County TX Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 94°F 34°C
Lo: 71°F 22°C
Sunrise 07:16 AM
Sunset 07:22 PM
Wind ESE 9 mph15 km/h
Dew Point 63°F17°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 44%
Thu, 24th
Grayson County TX Weather - Thursday, Sep 24, 2026 - Sunny
Hi: 94°F 34°C
Lo: 74°F 23°C
Sunrise 07:16 AM
Sunset 07:21 PM
Wind SE 11 mph18 km/h
Dew Point 55°F13°C
uv Index 8
Barometric Pressure 30.06 in1018 mb
POP 5% *
Humidity 33%
Fri, 25th
Grayson County TX Weather - Friday, Sep 25, 2026 - Patchy Rain Nearby
Hi: 95°F 35°C
Lo: 73°F 23°C
Sunrise 07:17 AM
Sunset 07:19 PM
Wind SSW 11 mph18 km/h
Dew Point 57°F14°C
uv Index 7
Barometric Pressure 30 in1016 mb
POP 7% *
Humidity 35%
Sat, 26th
Grayson County TX Weather - Saturday, Sep 26, 2026 - Sunny
Hi: 87°F 30°C
Lo: 70°F 21°C
Sunrise 07:18 AM
Sunset 07:18 PM
Wind E 6 mph9 km/h
Dew Point 48°F9°C
uv Index 7
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 35%
Sun, 27th
Grayson County TX Weather - Sunday, Sep 27, 2026 - Sunny
Hi: 84°F 29°C
Lo: 64°F 18°C
Sunrise 07:19 AM
Sunset 07:16 PM
Wind NNE 7 mph11 km/h
Dew Point 58°F14°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 2% *
Humidity 53%
Mon, 28th
Grayson County TX Weather - Monday, Sep 28, 2026 - Overcast
Hi: 87°F 30°C
Lo: 73°F 23°C
Sunrise 07:19 AM
Sunset 07:15 PM
Wind SSE 8 mph13 km/h
Dew Point 52°F11°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 9% *
Humidity 34%
Tue, 29th
Grayson County TX Weather - Tuesday, Sep 29, 2026 - Patchy Rain Nearby
Hi: 76°F 24°C
Lo: 67°F 20°C
Sunrise 07:20 AM
Sunset 07:14 PM
Wind ENE 3 mph4 km/h
Dew Point 57°F14°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 13% *
Humidity 57%
Wed, 30th
Grayson County TX Weather - Wednesday, Sep 30, 2026 - Moderate Or Heavy Rain Shower
Hi: 69°F 20°C
Lo: 63°F 17°C
Sunrise 07:21 AM
Sunset 07:12 PM
Wind E 6 mph10 km/h
Dew Point 62°F17°C
uv Index 4
Barometric Pressure 29.97 in1015 mb
POP 84% *
Humidity 90%
Thu, 1st
Grayson County TX Weather - Thursday, Oct 1, 2026 - Overcast
Hi: 72°F 22°C
Lo: 64°F 18°C
Sunrise 07:21 AM
Sunset 07:11 PM
Wind ESE 5 mph9 km/h
Dew Point 65°F18°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 27% *
Humidity 87%
Fri, 2nd
Grayson County TX Weather - Friday, Oct 2, 2026 - Overcast
Hi: 77°F 25°C
Lo: 64°F 18°C
Sunrise 07:22 AM
Sunset 07:10 PM
Wind E 9 mph15 km/h
Dew Point 63°F17°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 18% *
Humidity 71%
* POP = Probability of Precipitation. Data for 12:00 PM.