. A heat advisory remains in effect from 10 a.m. to 9 p.m. today.

The National Weather Service said heat index values up to 105 degrees are expected.

Hot temperatures and high humidity may cause heat illnesses.

People are advised to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

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.

The forecast: Today: Showers and thunderstorms likely, mainly after 5 p.m. Increasing clouds, with a high near 93. Heat index values as high as 101. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and thunderstorms likely before 8 p.m. Partly cloudy, with a low around 68. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday: Partly sunny, with a high near 87. Northeast wind around 5 mph becoming south in the afternoon.

Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southeast wind around 5 mph becoming calm. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2 p.m. Mostly cloudy, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night: Showers and thunderstorms likely before 11 p.m., then a slight chance of showers between 11 p.m. and 2 a.m. Mostly cloudy, with a low around 68. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday: Mostly sunny, with a high near 89.

Monday Night: Partly cloudy, with a low around 70.

Tuesday: A chance of showers and thunderstorms after 2 p.m. Mostly sunny, with a high near 93. Chance of precipitation is 40%.

Tuesday Night: A chance of showers and thunderstorms before 8 p.m. Partly cloudy, with a low around 68. Chance of precipitation is 30%.

Wednesday: Mostly sunny, with a high near 89.