This afternoon: Fair to partly cloudy. High 95. Heat index up to 104. UV index up to 10. Wind southwest around 7 mph, gusting to 18 mph.

Tonight: Partly cloudy. A slight chance of rain. Scattered thundershowers possible. Low 76. Wind west around 5 mph in the evening, becoming northwest after midnight. Chance of precipitation 20 percent. Precipitation mostly less than a tenth of an inch.

Sunday: Mostly cloudy. A chance of rain. Thunderstorms very likely, some possibly severe. High 88. UV index up to 8. Wind west around 6 mph. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch.

Sunday night: Mostly cloudy. A chance of rain in the evening, then a slight chance of rain after midnight. Scattered thunderstorms likely, some possibly severe. Low 76. Wind west-northwest around 6 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.

Monday: Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. A chance of rain. Scattered thunderstorms likely, some possibly severe. High 91. Heat index up to 102. UV index up to 9. Wind west-northwest around 5 mph in the morning, becoming west-southwest in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.

Monday night: Mostly cloudy to cloudy. Patchy light fog. A chance of rain. Thunderstorms very likely, some possibly severe. Low 76. Wind northwest around 4 mph. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch.

Tuesday: Partly to mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. A chance of rain in the afternoon. Scattered thunderstorms likely, some possibly severe. High 90. Heat index up to 103. UV index up to 8. Wind west-northwest around 3 mph in the morning, becoming east-southeast in the afternoon. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.

Tuesday night: Mostly cloudy in the evening, becoming fair to partly cloudy after midnight. Light to moderate fog in the evening, then moderate fog after midnight. A chance of rain. Scattered thunderstorms likely, some possibly severe. Low 74. Wind north around 4 mph. Chance of precipitation 40 percent. Precipitation mostly less than a tenth of an inch.

Wednesday: Sunny in the morning, becoming mostly sunny in the afternoon. Light to moderate fog in the morning. High 91. Heat index up to 103. UV index up to 10. Wind north-northeast around 4 mph in the morning, becoming east in the afternoon.

Wednesday night: Partly cloudy in the evening, becoming clear after midnight. Moderate fog. A chance of rain in the evening. Thunderstorms very likely, some possibly severe. Low 74. Wind north-northeast around 3 mph. Chance of precipitation 60 percent. Precipitation mostly around a quarter of an inch.

Thursday: Sunny in the morning, becoming mostly cloudy in the afternoon. Moderate fog in the morning. A chance of rain in the afternoon. Thunderstorms very likely, some severe. High 88. Heat index up to 100. UV index up to 7. Wind northwest around 3 mph in the morning, becoming southwest in the afternoon. Chance of precipitation 50 percent. Precipitation mostly around a tenth of an inch.