Saint Johns, MI Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Johns, MI in one place.
Rain showers likely before 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 72. Southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Saint Johns, MI is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 15, 2026 8:08 AM EDT.
The active forecast window currently covers Apr 15 to Apr 21, 2026 for Saint Johns, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 8:08 AM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Johns
Today looks like the warmest upcoming period in Saint Johns at 72 degrees F.
Sunday Night is the coolest period ahead with temperatures near 28 degrees F.
The strongest winds are forecast for Saturday at about 15 to 21 mph SW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 8:08 AM EDT
- Coverage
- 7 days
- Time zone
- America/Detroit
- Forecast office
- GRR
- Radar station
- KGRR
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then showers and thunderstorms. Mostly cloudy, with a low around 60. Southwest wind 8 to 12 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms between 7am and 8am, then showers and thunderstorms. Mostly cloudy. High near 70, with temperatures falling to around 68 in the afternoon. Southwest wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Showers and thunderstorms before 2am. Mostly cloudy, with a low around 50. Northwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Partly sunny, with a high near 72. East southeast wind 5 to 9 mph.
Showers and thunderstorms likely after 2am. Partly cloudy, with a low around 57. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 68.
A chance of showers and thunderstorms before 5am, then a chance of rain and snow showers. Mostly cloudy, with a low around 35.
A chance of rain and snow showers before 2pm. Partly sunny, with a high near 44.
Partly cloudy, with a low around 28.
Sunny, with a high near 52.
Mostly clear, with a low around 38.
Mostly sunny, with a high near 66.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 46.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Apr 15
|
Showers And Thunderstorms
|
72°F |
14 mph
SW
|
|
Tonight
Apr 15
|
Showers And Thunderstorms
|
60°F |
8 to 12 mph
SW
|
|
Thursday
Apr 16
|
Showers And Thunderstorms
|
70°F |
8 to 13 mph
SW
|
|
Thursday Night
Apr 16
|
Showers And Thunderstorms
|
50°F |
5 to 10 mph
NW
|
|
Friday
Apr 17
|
Partly Sunny
|
72°F |
5 to 9 mph
ESE
|
|
Friday Night
Apr 17
|
Partly Cloudy then Showers And Thunderstorms Likely
|
57°F |
8 to 14 mph
SSE
|
|
Saturday
Apr 18
|
Showers And Thunderstorms Likely
|
68°F |
15 to 21 mph
SW
|
|
Saturday Night
Apr 18
|
Chance Showers And Thunderstorms then Chance Rain And Snow Showers
|
35°F |
14 to 20 mph
W
|
|
Sunday
Apr 19
|
Chance Rain And Snow Showers
|
44°F |
14 to 20 mph
W
|
|
Sunday Night
Apr 19
|
Partly Cloudy
|
28°F |
7 to 18 mph
WNW
|
|
Monday
Apr 20
|
Sunny
|
52°F |
7 to 12 mph
W
|
|
Monday Night
Apr 20
|
Mostly Clear
|
38°F |
10 mph
SW
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
66°F |
10 to 18 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy then Slight Chance Rain Showers
|
46°F |
9 to 15 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Johns.
