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NWS 6-14-18

Heat index values could reach 100 degrees in Madison this weekend, as actual temperatures climb to the mid-90s.

The National Weather Service said the hot and humid weather moving in Friday will make for a very uncomfortable weekend outside.

The heat index is the flip side of the wind chill; heat and humidity combining to make it feel hotter than the actual temperature.

Before the heat wave hits, we should see a nice day on Thursday in Madison, with partly sunny skies and a high near 78.

Showers and thunderstorms are possible early Friday morning as a warm front moves through the region, with the high topping out at 88, according to 27 Storm Track meteorologist Branden Borremans.

Highs of 93 on Saturday and 94 on Sunday are forecast by Borremans, with sunshine both days.

The heat will continue on Monday with a high of 90, with showers and thunderstorms possible during the day and at night, the rain signaling the end of the hot weather as cooler air moves in.

Highs should only reach the upper 70s on Tuesday under partly sunny skies.

Borremans is looking at sunshine and highs in the low 80s Wednesday and next Thursday.

Wednesday's high of 80 was 3 degrees below normal and 15 degrees below the record high of 95 for June 13, set in 1956 and tied in 1976.

The low was 59, 3 degrees above normal and 23 degrees above the record low of 36 for the date, set in 1965.

No rain fell at the airport, keeping the June and meteorological summer (June through August) total at 1.47 inches, 0.48 inches below normal.

The record rainfall on June 13 was 2.24 inches in 2000.

Since Jan. 1, Madison has received 18.31 inches of precipitation (rain and melted snow), 4.53 inches above normal.