Lamar, MO Weather & Growing Conditions
Tonight
73°F
Mostly Clear
Mostly clear. Low around 73, with temperatures rising to around 75 overnight. South wind 5 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Mostly Clear | 5 to 8 mph S | 2% |
| Saturday | 97°F | Sunny | 8 to 14 mph SW | 2% |
| Saturday Night | 71°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 6 to 9 mph S | 34% |
| Sunday | 91°F | Chance Showers And Thunderstorms | 8 mph SW | 52% |
| Sunday Night | 64°F | Showers And Thunderstorms Likely | 5 mph NE | 73% |
| Monday | 80°F | Showers And Thunderstorms Likely | 3 to 9 mph N | 73% |
| Monday Night | 58°F | Slight Chance Rain Showers then Partly Cloudy | 6 to 9 mph N | 16% |
| Tuesday | 75°F | Partly Sunny | 9 mph N | 7% |
| Tuesday Night | 53°F | Partly Cloudy | 5 to 9 mph NE | 1% |
| Wednesday | 77°F | Mostly Sunny | 7 mph NE | 3% |
| Wednesday Night | 55°F | Mostly Clear | 6 mph NE | 3% |
| Thursday | 79°F | Mostly Sunny | 5 mph E | 8% |
| Thursday Night | 58°F | Partly Cloudy | 5 mph E | 7% |
| Friday | 79°F | Mostly Sunny | 6 mph E | 9% |
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 Sep 19, 2026.