Gainesville, TX Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for Gainesville, Cooke County, Texas.
Updated Jul 29, 2026, 2:17 PM local time · Radar refreshes every 5 minutes
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Gainesville
98°F
Wind 9 mph
Humidity 38%
Cloud cover 1%
UV index 8
Alerts 1
Active alerts (1)
Heat AdvisoryModerate
Montague; Cooke; Grayson; Fannin; Lamar; Young; Jack; Wise; Denton; Collin; Hunt; Delta; Hopkins; Parker; Tarrant; Dallas; Rockwall; Kaufman; Van Zandt; Rains; Johnson; Ellis; Henderson; Hill; Navarro
Until Jul 30, 2026, 6:00 AM
Full details
* WHAT...Heat index values between 105 and 108 degrees. * WHERE...Portions of North and Central Texas. * WHEN...Until 8 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity will increase the risk for heat-related illnesses to occur, particularly for those working or participating in outdoor activities. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Gainesville weather radar
Light
Heavy
Next 24 hours
Now
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98°F
3 PM
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99°F
1%
4 PM
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99°F
1%
5 PM
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99°F
1%
6 PM
⛅
98°F
1%
7 PM
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97°F
1%
8 PM
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93°F
1%
9 PM
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89°F
1%
10 PM
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87°F
1%
11 PM
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85°F
1%
12 AM
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83°F
1%
1 AM
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82°F
1%
2 AM
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81°F
1%
3 AM
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80°F
1%
4 AM
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79°F
2%
5 AM
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78°F
3%
6 AM
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78°F
3%
7 AM
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78°F
3%
8 AM
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81°F
3%
9 AM
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86°F
3%
10 AM
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90°F
3%
11 AM
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93°F
2%
12 PM
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96°F
2%
1 PM
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98°F
2%
7-day forecast
Today
Jul 29
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99°F
76°F
1%
Thu
Jul 30
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101°F
78°F
3%
Fri
Jul 31
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108°F
81°F
8%
Sat
Aug 1
🌦️
98°F
76°F
8%
Sun
Aug 2
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98°F
68°F
Mon
Aug 3
☀️
100°F
70°F
2%
Tue
Aug 4
☀️
105°F
73°F
3%
Weather near Gainesville
28 mi
Denton, TX29 mi
Celina, TX30 mi
Sherman, TX33 mi
Corinth, TX33 mi
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Little Elm, TX35 mi
The Trails of Frisco, TX35 mi
Denison, TX
Alerts are relayed from the National Weather Service and may lag
the official source. In a life-threatening situation always follow
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broadcasts.