Saint Peters, MO Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Peters, MO in one place.
Sunny, with a high near 83. East wind around 2 mph.
Local Weather Overview
This forecast page for Saint Peters, MO 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 7, 2026 9:21 PM CDT.
The active forecast window currently covers Oct 8 to Oct 14, 2026 for Saint Peters, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 8 to Oct 14, 2026
- Latest sync
- Oct 7, 2026 9:21 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Peters
Columbus Day looks like the warmest upcoming period in Saint Peters at 90 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Monday Night at about 5 to 10 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 7, 2026 9:21 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
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 60. East wind around 3 mph.
Sunny, with a high near 89. Southeast wind 3 to 7 mph.
Mostly clear, with a low around 64. South wind around 6 mph.
Mostly sunny, with a high near 87.
A slight chance of rain between 7pm and 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 20%.
Mostly sunny, with a high near 82.
Partly cloudy, with a low around 61.
Sunny, with a high near 90.
Mostly clear, with a low around 58.
A slight chance of rain showers between 7am and 1pm. Sunny, with a high near 74. Chance of precipitation is 20%.
Partly cloudy, with a low around 52.
A slight chance of rain showers after 7am. Mostly sunny, with a high near 72. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 8
|
Sunny
|
83°F |
2 mph
E
|
|
Thursday Night
Oct 8
|
Mostly Clear
|
60°F |
3 mph
E
|
|
Friday
Oct 9
|
Sunny
|
89°F |
3 to 7 mph
SE
|
|
Friday Night
Oct 9
|
Mostly Clear
|
64°F |
6 mph
S
|
|
Saturday
Oct 10
|
Mostly Sunny
|
87°F |
3 to 9 mph
SE
|
|
Saturday Night
Oct 10
|
Slight Chance Light Rain
|
59°F |
3 to 7 mph
E
|
|
Sunday
Oct 11
|
Mostly Sunny
|
82°F |
6 mph
N
|
|
Sunday Night
Oct 11
|
Partly Cloudy
|
61°F |
2 mph
S
|
|
Columbus Day
Oct 12
|
Sunny
|
90°F |
3 to 8 mph
SW
|
|
Monday Night
Oct 12
|
Mostly Clear
|
58°F |
5 to 10 mph
SW
|
|
Tuesday
Oct 13
|
Slight Chance Rain Showers
|
74°F |
10 mph
NW
|
|
Tuesday Night
Oct 13
|
Partly Cloudy
|
52°F |
5 to 8 mph
N
|
|
Wednesday
Oct 14
|
Slight Chance Rain Showers
|
72°F |
7 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Peters.
