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Saint Johns, MI 48879 Weather
Current conditions
Observed at Capital Region International Airport · 19 min ago
Forecast
10-day-
This Afternoon
Sunny, with a high near 67. West southwest wind around 5 mph.
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Tonight
Mostly clear. Low around 41, with temperatures rising to around 43 overnight. West wind around 2 mph.
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Thursday
Patchy fog before 9am. Mostly sunny, with a high near 67. North northwest wind 1 to 5 mph.
National Weather Service forecast updated 1 hr ago.
Hourly
Hourly forecast- Now67°
- 6 PM65°
- 7 PM62°
- 8 PM57°
- 9 PM52°
- 10 PM50°
- 11 PM49°
- Thu12 AM47°
- 1 AM46°
- 2 AM45°
- 3 AM44°
- 4 AM43°
- 5 AM43°
- 6 AM42°
- 7 AM42°
- 8 AM41°
- 9 AM44°
- 10 AM50°
- 11 AM56°
- 12 PM60°
- 1 PM64°
- 2 PM65°
- 3 PM66°
- 4 PM67°
10-day forecast
Details- TodayOct 21Sunny41°67°
- ThuOct 22Patchy Fog then Mostly Sunny42°67°
- FriOct 23Mostly Sunny42°64°
- SatOct 24Mostly Sunny45°67°
- SunOct 25Mostly Sunny47°71°
- MonOct 26Partly Sunny15%42°65°
- TueOct 27Slight Chance Rain Showers15%39°59°
- WedOct 28Partly cloudy51°69°
- ThuOct 29Rain0.36 in41°64°
- FriOct 30Sunny36°54°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
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Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- WedModerate
- ThuModerate
- FriModerate
Lansing, MI reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyLansing Area, records since 1863. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
Forecasters' discussion
From the National Weather Service office in GRR, issued 4 hrs ago
Key Messages
- Quiet Weather through the Weekend
- Height falls with showers then cooler next week
Discussion
Issued at 202 AM EDT Wed Oct 21 2026
- Quiet Weather through the Weekend
The dry weather pattern continues this week under upper and surface ridging. The next chance for rain is not until early next week. A slowly progressive pattern sees the ridge being flattened by northern stream troughing early next week with a cold front bringing showers while slowly pushing south through the Great Lakes.
- Height falls with showers then cooler next week
There are some indications the front could stall near Lower Michigan with a surface low moving along it for Tuesday or Wednesday. Upper troughing follows with the potential for sharply colder temperatures for the rest of next week.
Aviation
Issued at 122 PM EDT Wed Oct 21 2026
Clear skies will persist through the period. Dense fog is possible at MKG overnight. Otherwise other terminals will see patchy fog.
Marine
Issued at 202 AM EDT Wed Oct 21 2026
Winds and waves will remain relatively calm through the week then increase during the weekend.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.