Lemay, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lemay, a community in St. Louis County, Missouri.
Today
90°F
Patchy Fog then Sunny
Patchy fog before 7am. Sunny, with a high near 90. Southeast wind around 3 mph.
7-day forecast for Lemay
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Patchy Fog then Sunny | 3 mph SE | 0% |
| Tonight | 69°F | Mostly Clear | 5 mph SE | 0% |
| Wednesday | 91°F | Sunny | 5 mph S | 8% |
| Wednesday Night | 73°F | Slight Chance Showers And Thunderstorms | 6 mph S | 63% |
| Thursday | 88°F | Showers And Thunderstorms Likely | 5 mph S | 68% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms | 3 mph SE | 37% |
| Friday | 89°F | Chance Showers And Thunderstorms | 3 mph SW | 37% |
| Friday Night | 72°F | Chance Showers And Thunderstorms | 3 mph S | 29% |
| Saturday | 91°F | Chance Showers And Thunderstorms then Mostly Sunny | 3 mph S | 29% |
| Saturday Night | 73°F | Mostly Clear | 6 mph S | 7% |
| Sunday | 93°F | Sunny | 7 mph S | 7% |
| Sunday Night | 75°F | Mostly Clear | 7 mph S | 5% |
| Monday | 95°F | Sunny | 7 mph SW | 5% |
| Monday Night | 76°F | Slight Chance Showers And Thunderstorms | 8 mph SW | 15% |
Forecast source: National Weather Service (api.weather.gov) for Lemay (38.534, -90.285). Updated through the day.
Growing snapshot for Lemay
Last spring frost
Apr 6
First fall frost
Oct 27
Growing season
203 days
Hardiness zone
7a
More local growing data for Lemay: nearby ZIP 63125 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Affton
Ballwin
Bel-Nor
Bel-Ridge
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Bellefontaine Neighbors
Bellerive Acres
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Black Jack
Breckenridge Hills
Brentwood
Bridgeton
Calverton Park
Castle Point
Champ
Charlack
Chesterfield
Clarkson Valley
Clayton
Concord
Cool Valley
Country Club Hills
Country Life Acres
Crestwood
Creve Coeur
Crystal Lake Park
Dellwood
Des Peres
Edmundson
Climate data from the nearest NOAA station, Cahokia, Il (6.3 mi from Lemay). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.