THURSDAY: Mostly sunny with a slight storm chance. High: 91. Winds: Southwest 10-15 mph.
Storm Team 20 Chief Meteorologist
THURSDAY, AUGUST 21, 2014
NORMAL HIGH: 85
NORMAL LOW: 63
RECORD HIGH: 104 (1936)
RECORD LOW: 44 (1950)
SUNRISE: 6:16 a.m.
SUNSET: 7:47 p.m.
After an extended stretch of cooler than normal summertime temperatures, central Illinois is bracing for triple digit heat indices the next few days.
A very persistent weather pattern is setting up to build a heat dome over the nation's mid-section for the remainder of the work week and into the weekend with temperatures getting back into the 90's. Add in tropical-like dew points in the 70's and heat indices will make it feel as much as 100 degrees at the peak of daytime heating.
In the meantime, look for a slight chance of a shower or isolated thunderstorm Thursday morning as warm front lifts off to the north.
THE 7-DAY TEMPERATURE OUTLOOK: Look for highs in the lower 90's Thursday through Monday; and, upper 80's Tuesday and Wednesday. Overnight lows will drop to the lower 70's through the extended period.
Storm Team 20 Meteorologist