Lamar, MO Weather & Growing Conditions
Today
94°F
Sunny
Sunny, with a high near 94. Heat index values as high as 99. South wind 3 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Sunny | 3 to 8 mph S | 0% |
| Tonight | 75°F | Partly Cloudy | 3 to 8 mph SE | 3% |
| Wednesday | 95°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 7 to 10 mph S | 24% |
| Wednesday Night | 72°F | Chance Showers And Thunderstorms | 7 mph SE | 40% |
| Thursday | 93°F | Chance Showers And Thunderstorms | 6 mph S | 40% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 5 mph S | 57% |
| Friday | 90°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 3 to 7 mph S | 57% |
| Friday Night | 71°F | Slight Chance Showers And Thunderstorms | 7 mph S | 24% |
| Saturday | 93°F | Slight Chance Showers And Thunderstorms then Sunny | 9 mph S | 18% |
| Saturday Night | 73°F | Mostly Clear | 7 to 10 mph S | 5% |
| Sunday | 94°F | Sunny | 13 mph SW | 3% |
| Sunday Night | 74°F | Mostly Clear | 12 mph S | 3% |
| Monday | 95°F | Sunny | 14 mph SW | 1% |
| Monday Night | 75°F | Mostly Clear | 12 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lamar, MO
Last spring frost
Apr 9
First fall frost
Oct 27
Growing season
199 days
Hardiness zone
7a
Explore more for Lamar, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Lamar 7N, Mo (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.