***UPDATED 3:30 PM 5/28***

The unofficial start of summer is officially going to be chilly. The end of May normally has high temperatures near 80 and lows in the mid-50s. But Friday's high temps will only be around 50. Ouch.

42 counties in Iowa are in a FROST ADVISORY tonight from midnight to 7 AM:

WEATHER.GOV
WEATHER.GOV
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Widespread frost is still expected in the area as the temperatures will plummet into the lower-to-mid 30s.

The wind Friday night into Saturday morning will be light, but the wind chill on Saturday morning could dip into the upper-20s.

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weather.gov
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The record low for May 29 in Waterloo is 29* set in 1965.

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