Weather Alerts For Williamston, MI

# HEADLINE -------------------- FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT SUNDAY # DETAILS -------------------- WHAT Temperatures as low as 30 will harm tender vegetation. WHERE Portions of central, south central, and west central Michigan. WHEN From midnight tonight to 8 AM EDT Sunday. IMPACTS Sensitive outdoor plants could be harmed or killed if left uncovered. ISSUED AT Saturday, May 2, 2026 at 1:07 PM EDT ISSUED BY National Weather Service Grand Rapids MI HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Take steps now to protect tender plants from the cold. # AREAS AFFECTED -------------------- Calhoun, Clinton, Eaton, Gratiot, Ingham, Ionia, Isabella, Jackson, Lake, Mecosta, Montcalm Including the cities of Mount Pleasant, Battle Creek, Alma, Big Rapids, Baldwin, Ionia, St. Johns, Lansing, Greenville, Jackson, and Charlotte

Pollen Index: 9 Pollen Level: medium-high Predominant Pollen: Birch, Maple and Poplar/Aspen/Cottonwood. The quantity of pollen grains in the air for Sunday will be on the increase in the high range. This rise is a result of higher temperatures and windy conditions.