Michigan month by month

1. October 2026

   143 events listed

   Detroit

   62° / 43°

   Typical high / low

   Grand Rapids

   61° / 40°

   Rain or snow about half the days

   Saginaw

   61° / 41°

   Rain or snow 1 day in 3

   • Running races (121)
   • Kids and families (18)
   • Big races (11)
   • Trail races (8)
   • Bike rides and races (7)
   • Hot Cider Hustle - Lansing Half Marathon, 10K & 5KSat, Oct 10 · 8:20 AM · half marathon, 10K, 5K · Lansing
   • Anderson Lake Backyard UltraSat, Oct 10 · 9:00 AM · ultra · Gwinn
   • Sandhill Crane All Trail Half Marathon/10K/5KSat, Oct 10 · 9:00 AM · half marathon, 10K, 5K · Vandalia

2. November 2026

   102 events listed

   Detroit

   49° / 33°

   Typical high / low

   Grand Rapids

   47° / 31°

   Rain or snow 1 day in 2

   Saginaw

   46° / 31°

   Rain or snow 1 day in 3

   • Running races (95)
   • Turkey trots (59)
   • Kids and families (13)
   • Trail races (6)
   • Big races (3)
   • Rock CF Thumb Coast Marathon, Half Marathon & 5KSun, Nov 8 · All day · half marathon, marathon, 5K · Port Austin
   • Twisted Trail 5K, 10K, 15K and FREE 1 MILEFri, Nov 27 · 9:00 AM · 5K, 10K, 15K, 1 mile · Grand Rapids
   • Black Toenail Friday Half Marathon and 7.5 Miler - MIFri, Nov 27 · 11:00 AM · half marathon, 7.5 mile · Commerce Township

3. December 2026

   35 events listed

   Detroit

   37° / 25°

   Typical high / low

   Grand Rapids

   36° / 23°

   Rain or snow about half the days

   Saginaw

   35° / 23°

   Rain or snow 1 day in 3

   • Running races (34)
   • Trail races (2)
   • Snow and ski (2)
   • Kids and families (2)
   • Ranger programs (1)
   • Run Through the Lights at Gilmore Car MuseumWed, Dec 2 · 6:00 PM · Race · Hickory Corners
   • First Thursday HikesThu, Dec 3 · 2:00 PM · Ranger program

4. January 2027

   14 events listed

   Detroit

   33° / 19°

   Typical high / low

   Grand Rapids

   31° / 17°

   Rain or snow about half the days

   Saginaw

   30° / 16°

   Rain or snow 1 day in 3

   • Running races (9)
   • Snow and ski (3)
   • Big races (3)
   • Time Travel Half-Marathon/5K/10K - Ann ArborSat, Jan 9 · 9:00 AM · half marathon, 5K, 10K · Rolling Hills Water Park, Ypsilanti
   • KAR Running Mechanics WorkshopThu, Jan 7 · 6:00 PM · Class · Kalamazoo

5. February 2027

   11 events listed

   Detroit

   36° / 20°

   Typical high / low

   Grand Rapids

   34° / 18°

   Rain or snow about half the days

   Saginaw

   33° / 17°

   Rain or snow 1 day in 3

   • Running races (10)
   • Big races (4)
   • Trail races (2)
   • Kids and families (2)
   • Groundhog Day MarathonFri, Feb 5 · 6:30 PM · marathon · Walker
   • Winter Trail Fest Half Marathon and 5 Mile - EastsideSat, Feb 13 · 10:30 AM · half marathon, 5 mile · Brighton
   • Time to Paddy 5K/10K & Lucky 13.1 - Grand RapidsSun, Feb 28 · 9:00 AM · half marathon, 5K, 10K · TBD, Grand Rapids

6. March 2027

   16 events listed

   Detroit

   46° / 27°

   Typical high / low

   Grand Rapids

   44° / 24°

   Rain or snow 1 day in 3

   Saginaw

   43° / 25°

   Rain or snow 1 day in 3

   • Running races (13)
   • Big races (5)
   • Trail races (1)
   • Bike rides and races (1)
   • Triathlons (1)
   • Time to Paddy 5K/10K & Lucky 13.1 - Ann ArborSat, Mar 6 · 8:00 AM · half marathon, 5K, 10K · TBD, Ann Arbor
   • White Pine Thaw Marathon RelaySun, Mar 7 · 9:00 AM · marathon · Comstock Park
   • Pi Day 5k: a 3.14 MilerSat, Mar 13 · 9:00 AM · 5K, 14 mile · Lansing

7. April 2027

   4 events listed

   Detroit

   59° / 37°

   Typical high / low

   Grand Rapids

   57° / 35°

   Rain or snow about half the days

   Saginaw

   56° / 35°

   Rain or snow 1 day in 3

   • Running races (4)
   • Big races (2)
   • DoNot Stop Half Marathon/5K/10K - Grand RapidsSat, Apr 3 · 8:00 AM · half marathon, 5K, 10K · TBD, Grand Rapids
   • Carpe Diem - Carpe Noctem Half Marathon and 10K - MISat, Apr 3 · 8:30 AM · half marathon, 10K · Commerce Township

   Listings for April are still coming in. Check back closer to the date.

8. May 2027

   Nothing listed yet

   Detroit

   70° / 48°

   Typical high / low

   Grand Rapids

   69° / 46°

   Rain or snow 1 day in 2

   Saginaw

   69° / 47°

   Rain or snow 1 day in 3

   Listings for May are still coming in. Check back closer to the date.

9. June 2027

   Nothing listed yet

   Detroit

   79° / 59°

   Typical high / low

   Grand Rapids

   79° / 56°

   Rain or snow 1 day in 3

   Saginaw

   79° / 57°

   Rain or snow 1 day in 3

   Listings for June are still coming in. Check back closer to the date.

10. July 2027

    Nothing listed yet

    Detroit

    84° / 63°

    Typical high / low

    Grand Rapids

    82° / 60°

    Rain or snow 1 day in 3

    Saginaw

    83° / 62°

    Rain or snow 1 day in 3

    Listings for July are still coming in. Check back closer to the date.

11. August 2027

    Nothing listed yet

    Detroit

    82° / 62°

    Typical high / low

    Grand Rapids

    81° / 58°

    Rain or snow 1 day in 3

    Saginaw

    82° / 60°

    Rain or snow 1 day in 3

    Listings for August are still coming in. Check back closer to the date.

12. September 2027

    Nothing listed yet

    Detroit

    75° / 55°

    Typical high / low

    Grand Rapids

    74° / 51°

    Rain or snow 1 day in 3

    Saginaw

    74° / 52°

    Rain or snow 1 day in 3

    Listings for September are still coming in. Check back closer to the date.

Typical weather is the NOAA 1991–2020 average at the nearest weather station to each city.