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Hot and humid Friday; Risk of thunderstorms this weekend

High temperatures today reached 85 degrees in Alpena, 89 degrees in Chicago and 84 degrees in Minneapolis. A cold front is slowly moving through Minnesota and Iowa. Farther west, behind the cold front, temperatures are much cooler. Today’s highs were 73 degrees in Bismarck and 72 degrees in Rapid City. That cooler air mass will eventually arrive in the middle of next week.

The cold front in Minnesota and Iowa is providing enough lift and instability for an outbreak of thunderstorms. In Northeast Michigan, Friday will be humid and partly cloudy. Saturday, there will be a chance of spotty thunderstorms from the early-afternoon to early-evening. Sunday will feature a greater likelihood of widespread showers/thunderstorms from midday until the early-evening.

Highs Friday afternoon will be near 80 degrees at the Lake Huron shoreline and near 90 degrees along M-33. Alpena will get up to 88 degrees away from the immediate shoreline. Although temperatures will not be as hot over the weekend, high humidity levels will still remain in Northeast Michigan.

Friday: Hot and humid, becoming partly cloudy. Predawn lows will be around 56 degrees. By 10 a.m., temperatures will be getting close to 80 degrees. Afternoon highs will heat up to 88 degrees. Temperatures will still be in the lower 80s around 6 p.m. with high humidity throughout the afternoon and evening.

Saturday: Much of Saturday will be rain-free. There will be a low-end chance of a developing thunderstorm in the afternoon or early-evening. Predawn temperatures will start close to 60 degrees. Afternoon highs will be heading up to about 86 degrees. Temperatures will be around the 80 degree mark during the supper-hour.

Sunday: Showers and thunderstorms are more likely from midday until the early-evening and breezy. Winds will be from the southwest, about 15 mph. Predawn temperatures will start in the lower 60s. Afternoon highs will reach the lower 80s.

For the rest of Northeast Michigan’s weather forecast, watch the latest weather video by clicking the weather tab at the top of the page.