Lebanon, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lebanon, a city in Laclede County, Missouri.
Today
99°F
Sunny
Sunny. High near 99, with temperatures falling to around 97 in the afternoon. Heat index values as high as 99. Southwest wind around 12 mph, with gusts as high as 18 mph.
7-day forecast for Lebanon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Sunny | 12 mph SW | 0% |
| Tonight | 72°F | Partly Cloudy | 8 mph SW | 1% |
| Sunday | 93°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 6 to 9 mph SW | 29% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms | 5 mph N | 74% |
| Monday | 80°F | Showers And Thunderstorms Likely | 3 to 9 mph N | 74% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 6 to 9 mph N | 41% |
| Tuesday | 72°F | Partly Sunny | 9 mph N | 11% |
| Tuesday Night | 53°F | Partly Cloudy | 3 to 9 mph NE | 2% |
| Wednesday | 75°F | Sunny | 3 to 7 mph NE | 1% |
| Wednesday Night | 53°F | Partly Cloudy | 1 to 6 mph NE | 1% |
| Thursday | 78°F | Mostly Sunny | 1 to 6 mph NE | 4% |
| Thursday Night | 57°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph E | 15% |
| Friday | 78°F | Slight Chance Rain Showers | 2 to 6 mph E | 17% |
| Friday Night | 58°F | Mostly Cloudy | 2 to 6 mph E | 14% |
Forecast source: National Weather Service (api.weather.gov) for Lebanon (37.672, -92.660). Updated through the day.
Growing snapshot for Lebanon
Last spring frost
Apr 17
First fall frost
Oct 21
Growing season
187 days
Hardiness zone
6b
More local growing data for Lebanon: nearby ZIP 65536 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lebanon 2W, Mo (2.6 mi from Lebanon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.