Longtown, MO Weather & Growing Conditions
Tonight
70°F
Mostly Clear
Mostly clear. Low around 70, with temperatures rising to around 73 overnight. South wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Mostly Clear | 3 mph S | 11% |
| Saturday | 96°F | Mostly Sunny | 6 mph SW | 3% |
| Saturday Night | 71°F | Partly Cloudy | 6 mph SSW | 1% |
| Sunday | 94°F | Sunny | 6 mph W | 7% |
| Sunday Night | 68°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph N | 28% |
| Monday | 85°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 50% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 8 mph N | 50% |
| Tuesday | 74°F | Partly Sunny | 8 to 12 mph N | 14% |
| Tuesday Night | 56°F | Partly Cloudy | 6 to 12 mph N | 8% |
| Wednesday | 74°F | Mostly Sunny | 9 mph N | 3% |
| Wednesday Night | 55°F | Partly Cloudy | 3 to 7 mph N | 2% |
| Thursday | 75°F | Mostly Sunny | 3 to 8 mph N | 3% |
| Thursday Night | 57°F | Partly Cloudy | 6 mph NNE | 3% |
| Friday | 75°F | Mostly Sunny | 5 to 8 mph NNE | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Longtown, MO
Last spring frost
Apr 19
First fall frost
Oct 20
Growing season
182 days
Hardiness zone
7a
Explore more for Longtown, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Perryville Wtp, Mo (12.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.