Longtown, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Longtown, a town in Perry County, Missouri.
This Afternoon
97°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Sunny. High near 97, with temperatures falling to around 93 in the afternoon. South southwest wind around 5 mph. Chance of precipitation is 20%.
7-day forecast for Longtown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 97°F | Slight Chance Showers And Thunderstorms | 5 mph SSW | 24% |
| Tonight | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SSE | 21% |
| 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 | 27% |
| Monday | 85°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 51% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 8 mph N | 51% |
| Tuesday | 74°F | Partly Sunny | 8 to 12 mph N | 13% |
| Tuesday Night | 55°F | Partly Cloudy | 6 to 12 mph N | 9% |
| Wednesday | 74°F | Mostly Sunny | 9 mph N | 3% |
| Wednesday Night | 54°F | Partly Cloudy | 3 to 7 mph N | 3% |
| Thursday | 75°F | Mostly Sunny | 5 to 8 mph N | 3% |
| Thursday Night | 57°F | Partly Cloudy | 6 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Longtown (37.670, -89.774). Updated through the day.
Growing snapshot for Longtown
Last spring frost
Apr 19
First fall frost
Oct 20
Growing season
182 days
Hardiness zone
7a
More local growing data for Longtown: nearby ZIP 63746 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Perryville Wtp, Mo (12.4 mi from Longtown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.