Longtown, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Longtown, a town in Perry County, Missouri.
Overnight
70°F
Clear
Clear. Low around 70, with temperatures rising to around 73 overnight. South wind around 3 mph.
7-day forecast for Longtown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Clear | 3 mph S | 1% |
| Saturday | 96°F | Sunny | 3 to 7 mph SW | 2% |
| Saturday Night | 71°F | Mostly Clear | 6 mph SSW | 1% |
| Sunday | 93°F | Mostly Sunny | 5 mph WSW | 1% |
| Sunday Night | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph N | 37% |
| Monday | 82°F | Showers And Thunderstorms Likely | 5 to 9 mph N | 66% |
| Monday Night | 59°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 9 mph N | 66% |
| Tuesday | 72°F | Slight Chance Showers And Thunderstorms | 9 to 13 mph N | 18% |
| Tuesday Night | 54°F | Partly Cloudy | 6 to 12 mph N | 9% |
| Wednesday | 73°F | Mostly Sunny | 10 mph N | 2% |
| Wednesday Night | 53°F | Partly Cloudy | 3 to 8 mph N | 1% |
| Thursday | 75°F | Mostly Sunny | 5 to 8 mph N | 3% |
| Thursday Night | 55°F | Partly Cloudy | 6 mph NNE | 3% |
| Friday | 76°F | Mostly Sunny | 3 to 8 mph NNE | 4% |
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.