When Is First Frost In Wisconsin In 2018?

WISCONSIN -- Here in Wisconsin, Fall officially begins at 8:54 p.m. on Saturday, Sep. 22. With it comes lower temperatures, shorter days and of course falling leaves.

For a lot of people - especially gardeners - being mindful of the first frost of the season will save garden plants - and countless hours and dollars of investment.

According to Plantmaps.com, Wisconsin is part of seven distinct climate zones. If you're form up north, you may have already seen the season's first frost.

If you're from Southeastern Wisconsin, you'll probably be getting your child's Halloween costume finished up by the time the frost hits. If you're unsure which climate zone you're in, you can simply check out their interactive frost date map.

Wisconsin Average First Frost Date Chart:

Zone 3
Aug. 21 - Aug. 31

Zone 4
Sep. 1 - Sep. 10

Zone 5
Sep. 11 - Sep. 20

Zone 6
Sep. 21 - Sep. 30

Zone 7
Oct.1 - Oct. 10

Zone 8
Oct.11 - Oct. 20

Zone 9
Oct. 21 - Oct. 31

According to the National Weather Service, on Friday. Sep. 21, the lowest recorded temperatures in Wisconsin hovered in the low-to-mid 50s. You can see their full readout here.

According to the National Weather Service, we have the potential to see some rainfall over the weekend, and low temps dipping into the upper 40s in the Milwaukee area.

Tonight
Partly cloudy, with a low around 48. North wind 10 to 15 mph, with gusts as high as 25 mph.

Saturday
Mostly sunny, with a high near 62. North wind 5 to 10 mph becoming southeast in the afternoon.

Saturday Night
Mostly clear, with a low around 48. Southeast wind around 5 mph becoming calm in the evening.

Sunday
Sunny, with a high near 67. Light and variable wind becoming southeast 5 to 10 mph in the morning.

Sunday Night
Mostly clear, with a low around 55. East wind 5 to 10 mph.

Photo by Scott Anderson