On Monday, April 20, 2026, the National Weather Service (NWS) is issuing a freeze warning for southern Michigan due to cold temperatures that will drop to about 25° F overnight. The warning will be in effect throughout Sunday night into early morning Monday. It will affect most of the counties in southern and central Michigan. The unusual temperature, coming after the warmest weekend in years, may damage crops, harm outside plumbing systems, and even cause harm to unprotected pets. NWS cautions that since cold air may persist even until Monday morning, bus schedules might be affected.
Freeze Warning in Southern Michigan: Temperatures Expected to Drop to 25°F on Monday
The 25-degree freeze warning will impact a wide area of southern Michigan, including cities like Detroit, Lansing, Ann Arbor, Jackson, Kalamazoo, and Grand Rapids. The freeze is expected to begin around 10 p.m. on Sunday, April 19, and continue until 8 a.m. on Monday, April 20, with the coldest readings hovering near 20–25°F. The NWS warns that such temperatures will likely cause frost damage to crops, seedlings, and newly planted ornamentals. Gardeners and farmers are advised to water plants heavily before the cold sets in, as moist soil retains heat better than dry soil. Young trees, especially fruit trees, are particularly vulnerable to this late-season freeze, so wrapping trunks or using portable protection may be necessary.
How to Prepare for the Freeze Warning
There are some easy-to-do methods that the NWS advises people to adopt to protect both their belongings and themselves. Gardeners can cover their plants using blankets, towels, or frost cloths that would serve as a protective layer providing an extra few degrees of warmth. Plastic covers are not recommended for use in direct contact with plants because they may cause additional harm due to condensation. Homeowners need to insulate their exterior piping and drain hosepipes and switch off their water valves to avoid pipe bursts. Pets and other living creatures that live outside will require moving inside to heated spaces if the temperature remains close to 25°F. The freeze alert will remain active until the morning, and motorists should watch out for potentially slippery surfaces like bridges and shaded roads.
Impacts on Daily Life
The 25°F freeze warning could disrupt daily routines, especially for those in agriculture and horticulture. While most indoor heating systems will be unaffected, the sudden drop in temperature may increase energy demand across the region. The NWS advises residents to check on elderly neighbors or those living in older homes without proper insulation. The freeze may also delay planting for some spring gardening projects, as the cold could damage recently planted seeds and seedlings. The warning is expected to end by mid‑morning Monday, with temperatures gradually rising above freezing by afternoon. The NWS will continue to monitor the situation and update the public if any changes are needed.
