Saint Louis, MI Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Louis, MI in one place.
Sunny, with a high near 99.
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: Jul 12, 2026 4:10 AM EDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Saint Louis, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 4:10 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 99 degrees F.
Friday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Tuesday at about 6 to 13 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 4:10 AM EDT
- Coverage
- 5 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
Mostly clear, with a low around 71.
Sunny, with a high near 96.
Mostly clear, with a low around 66.
Mostly sunny, with a high near 91.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 66.
A chance of rain showers. Mostly sunny, with a high near 88.
A chance of rain showers. Partly cloudy, with a low around 65.
A chance of rain showers. Mostly sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
99°F |
6 to 13 mph
W
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
71°F |
6 to 13 mph
W
|
|
Wednesday
Jul 15
|
Sunny
|
96°F |
5 to 9 mph
WNW
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
66°F |
2 to 12 mph
N
|
|
Thursday
Jul 16
|
Mostly Sunny
|
91°F |
2 to 9 mph
W
|
|
Thursday Night
Jul 16
|
Partly Cloudy then Slight Chance Rain Showers
|
66°F |
3 to 9 mph
NNW
|
|
Friday
Jul 17
|
Chance Rain Showers
|
88°F |
3 to 8 mph
S
|
|
Friday Night
Jul 17
|
Chance Rain Showers
|
65°F |
5 to 8 mph
W
|
|
Saturday
Jul 18
|
Chance Rain Showers
|
87°F |
6 to 13 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Louis.
