326 AM CDT THU JUL 5 2012 National Weather Service/Des Moines

…EXCESSIVE HEAT WARNING IN EFFECT UNTIL 7 AM CDT SATURDAY…

EARLY THIS MORNING…MOSTLY CLEAR. SOUTHWEST WIND AROUND 5 MPH.

TODAY…MOSTLY SUNNY. HOT AND HUMID. HIGH IN THE UPPER 90S. SOUTHWEST WIND 5 TO 10 MPH. HEAT INDEX READINGS 103 TO 108.

TONIGHT…MOSTLY CLEAR. LOW IN THE MID 70S. SOUTH WIND AROUND 5 MPH. HIGHEST HEAT INDEX READINGS 100 TO 103 THROUGH MIDNIGHT.

FRIDAY…SUNNY. VERY HOT. HIGH AROUND 100. SOUTH WIND 5 TO 15 MPH. HEAT INDEX READINGS 102 TO 107.

FRIDAY NIGHT…PARTLY CLOUDY. LOW IN THE MID 70S. SOUTHWEST WIND 5 TO 10 MPH. HIGHEST HEAT INDEX READINGS 100 TO 103 THROUGH MIDNIGHT.

SATURDAY…MOSTLY SUNNY. HIGH IN THE MID 90S. NORTHWEST WIND 5 TO 10 MPH.

SATURDAY NIGHT…PARTLY CLOUDY. LOW IN THE LOWER 70S.

SUNDAY…MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF THUNDERSTORMS. HIGH IN THE UPPER 80S.

SUNDAY NIGHT…MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF THUNDERSTORMS. LOW IN THE UPPER 60S.