Chesterfield, MO Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Chesterfield, MO in one place.
A chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 57. Southeast wind around 10 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Chesterfield, 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: May 15, 2026 2:56 AM CDT.
The active forecast window currently covers May 15 to May 21, 2026 for Chesterfield, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 15 to May 21, 2026
- Latest sync
- May 15, 2026 2:56 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Chesterfield
Sunday looks like the warmest upcoming period in Chesterfield at 92 degrees F.
Overnight is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Monday at about 14 to 17 mph S.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- May 15, 2026 2:56 AM 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 before 9am. Partly sunny, with a high near 87. Southeast wind around 10 mph. Chance of precipitation is 40%.
A slight chance of rain showers between 1am and 4am, then a slight chance of showers and thunderstorms between 4am and 5am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 9 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 10am, then showers and thunderstorms likely between 10am and noon, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 85. South wind around 9 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. South wind around 7 mph. Chance of precipitation is 50%.
Sunny, with a high near 92.
Mostly clear, with a low around 71.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.
Showers and thunderstorms likely. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Showers and thunderstorms likely. Partly sunny, with a high near 80. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
A chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
May 15
|
Chance Showers And Thunderstorms
|
57°F |
10 mph
SE
|
|
Friday
May 15
|
Chance Showers And Thunderstorms then Partly Sunny
|
87°F |
10 mph
SE
|
|
Friday Night
May 15
|
Mostly Cloudy then Slight Chance Showers And Thunderstorms
|
67°F |
9 mph
S
|
|
Saturday
May 16
|
Chance Showers And Thunderstorms
|
85°F |
9 mph
S
|
|
Saturday Night
May 16
|
Chance Showers And Thunderstorms
|
67°F |
7 mph
S
|
|
Sunday
May 17
|
Sunny
|
92°F |
8 to 15 mph
S
|
|
Sunday Night
May 17
|
Mostly Clear
|
71°F |
14 mph
S
|
|
Monday
May 18
|
Chance Showers And Thunderstorms
|
91°F |
14 to 17 mph
S
|
|
Monday Night
May 18
|
Chance Showers And Thunderstorms
|
72°F |
16 mph
S
|
|
Tuesday
May 19
|
Showers And Thunderstorms Likely
|
87°F |
12 to 15 mph
SW
|
|
Tuesday Night
May 19
|
Showers And Thunderstorms Likely
|
63°F |
5 to 10 mph
SW
|
|
Wednesday
May 20
|
Showers And Thunderstorms Likely
|
80°F |
8 mph
S
|
|
Wednesday Night
May 20
|
Chance Showers And Thunderstorms
|
59°F |
3 to 7 mph
E
|
|
Thursday
May 21
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
79°F |
8 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chesterfield.
