Affton, MO Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Affton, MO in one place.
Mostly sunny, with a high near 93. Southwest wind around 7 mph.
Local Weather Overview
This forecast page for Affton, 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 13, 2026 7:13 PM CDT.
The active forecast window currently covers Oct 13 to Oct 19, 2026 for Affton, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 7:13 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Affton
This Afternoon looks like the warmest upcoming period in Affton at 93 degrees F.
Friday Night is the coolest period ahead with temperatures near 40 degrees F.
The strongest winds are forecast for Friday at about 17 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 7:13 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
A chance of showers and thunderstorms between 1am and 4am, then showers and thunderstorms likely. Partly cloudy, with a low around 72. Southwest wind around 7 mph. Chance of precipitation is 70%.
Showers and thunderstorms before 8am, then patchy fog and showers and thunderstorms between 8am and 1pm, then patchy fog and a chance of showers and thunderstorms. Cloudy, with a high near 78. Northwest wind around 3 mph. Chance of precipitation is 90%.
A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 68. Northeast wind around 3 mph. Chance of precipitation is 70%.
Showers and thunderstorms. Mostly cloudy, with a high near 84. South wind 3 to 8 mph. Chance of precipitation is 90%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 61. Chance of precipitation is 20%.
Mostly clear, with a low around 40.
Sunny, with a high near 63.
Clear, with a low around 40.
Sunny, with a high near 71.
Partly cloudy, with a low around 48.
Mostly sunny, with a high near 74.
Partly cloudy, with a low around 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 13
|
Mostly Sunny
|
93°F |
7 mph
SW
|
|
Tonight
Oct 13
|
Partly Cloudy then Chance Showers And Thunderstorms
|
72°F |
7 mph
SW
|
|
Wednesday
Oct 14
|
Showers And Thunderstorms
|
78°F |
3 mph
NW
|
|
Wednesday Night
Oct 14
|
Chance Showers And Thunderstorms
|
68°F |
3 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
84°F |
3 to 8 mph
S
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms Likely
|
51°F |
7 to 15 mph
W
|
|
Friday
Oct 16
|
Slight Chance Rain Showers then Mostly Sunny
|
61°F |
17 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear
|
40°F |
3 to 13 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
63°F |
3 mph
NE
|
|
Saturday Night
Oct 17
|
Clear
|
40°F |
3 mph
SE
|
|
Sunday
Oct 18
|
Sunny
|
71°F |
6 mph
S
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
48°F |
5 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
74°F |
3 mph
S
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
52°F |
3 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Affton.
