Lamar, MO Weather & Growing Conditions
Tonight
48°F
Slight Chance Drizzle
A slight chance of drizzle before 5am. Cloudy, with a low around 48. Wind chill values as low as 45. West wind 8 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Slight Chance Drizzle | 8 to 12 mph W | 17% |
| Wednesday | 63°F | Mostly Sunny | 7 to 13 mph W | 6% |
| Wednesday Night | 40°F | Clear | 5 mph SW | 0% |
| Thursday | 63°F | Mostly Sunny | 3 to 8 mph W | 13% |
| Thursday Night | 43°F | Mostly Cloudy | 6 mph N | 7% |
| Friday | 58°F | Partly Sunny | 5 to 8 mph N | 0% |
| Friday Night | 36°F | Mostly Cloudy | 3 mph NE | 0% |
| Saturday | 57°F | Mostly Sunny | 3 mph NE | 0% |
| Saturday Night | 35°F | Partly Cloudy | 2 mph N | 0% |
| Sunday | 63°F | Sunny | 3 mph NW | 0% |
| Sunday Night | 37°F | Clear | 0 to 3 mph SW | 0% |
| Monday | 68°F | Sunny | 3 to 7 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 5 mph SW | 1% |
| Tuesday | 71°F | Sunny | 6 mph SW | 0% |
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 Nov 4, 2026.