St. Johns Weather Forecast
Weather forecast for: Saint Johns MI
Last Update: 11:03 am EDT Sep 24, 2026
This Afternoon: Sunny, with a high near 69. East southeast wind around 11 mph.
Tonight: Mostly clear, with a low around 44. East southeast wind around 6 mph becoming calm after midnight.
Friday: Partly sunny, with a high near 66. Calm wind becoming east northeast 5 to 7 mph in the afternoon.
Friday Night: Mostly clear, with a low around 42. Light east northeast wind.
Saturday: Sunny, with a high near 70. Calm wind becoming northeast around 6 mph in the afternoon.
Saturday Night: Mostly clear, with a low around 44.
Sunday: Sunny, with a high near 70.
Sunday Night: Mostly clear, with a low around 45.
Monday: Sunny, with a high near 70.
Monday Night: Mostly clear, with a low around 47.
Tuesday: Sunny, with a high near 72.
Tuesday Night: A chance of showers. Mostly cloudy, with a low around 56.
Wednesday: A chance of showers. Mostly cloudy, with a high near 70.