Saint Louis, MI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Louis, MI in one place.
Mostly sunny, with a high near 80. West southwest wind 10 to 16 mph, with gusts as high as 28 mph.
Local Weather Overview
This forecast page for Saint Louis, 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: Oct 12, 2026 4:44 AM EDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Saint Louis, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 4:44 AM EDT
- Forecast office
- GRR
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Louis
Tuesday looks like the warmest upcoming period in Saint Louis at 80 degrees F.
Friday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Friday at about 14 to 21 mph WNW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 4:44 AM EDT
- Coverage
- 6 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
A slight chance of rain showers after 2am. Partly cloudy, with a low around 54. Northwest wind 2 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 8am. Partly sunny, with a high near 67.
Mostly cloudy, with a low around 46.
A chance of rain showers after 8am. Mostly cloudy, with a high near 64.
A chance of rain showers. Mostly cloudy, with a low around 47.
A chance of rain showers. Partly sunny, with a high near 57.
A slight chance of rain showers before 2am. Partly cloudy, with a low around 32.
Sunny, with a high near 53.
Mostly clear, with a low around 33.
Sunny, with a high near 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Mostly Sunny
|
80°F |
10 to 16 mph
WSW
|
|
Tuesday Night
Oct 13
|
Partly Cloudy then Slight Chance Rain Showers
|
54°F |
2 to 13 mph
NW
|
|
Wednesday
Oct 14
|
Slight Chance Rain Showers then Partly Sunny
|
67°F |
2 to 7 mph
N
|
|
Wednesday Night
Oct 14
|
Mostly Cloudy
|
46°F |
7 mph
NNE
|
|
Thursday
Oct 15
|
Chance Rain Showers
|
64°F |
5 to 8 mph
ENE
|
|
Thursday Night
Oct 15
|
Chance Rain Showers
|
47°F |
5 to 12 mph
NNE
|
|
Friday
Oct 16
|
Chance Rain Showers
|
57°F |
14 to 21 mph
WNW
|
|
Friday Night
Oct 16
|
Slight Chance Rain Showers
|
32°F |
8 to 21 mph
NW
|
|
Saturday
Oct 17
|
Sunny
|
53°F |
6 to 10 mph
WNW
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
33°F |
5 to 9 mph
WSW
|
|
Sunday
Oct 18
|
Sunny
|
60°F |
10 to 17 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Louis.
