Armstrong, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Armstrong, a city in Howard County, Missouri.
Tonight
74°F
Partly Cloudy
Partly cloudy, with a low around 74. South southeast wind around 7 mph.
7-day forecast for Armstrong
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 74°F | Partly Cloudy | 7 mph SSE | 2% |
| Saturday | 97°F | Mostly Sunny | 7 to 12 mph SSW | 2% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 48% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 3 to 7 mph WNW | 44% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely | 9 mph NNE | 71% |
| Monday | 73°F | Showers And Thunderstorms Likely | 10 mph NNE | 71% |
| Monday Night | 56°F | Chance Rain Showers | 10 mph NNE | 40% |
| Tuesday | 69°F | Mostly Cloudy | 10 mph NNE | 13% |
| Tuesday Night | 51°F | Mostly Cloudy | 5 to 9 mph NNE | 5% |
| Wednesday | 72°F | Mostly Sunny | 7 mph NE | 2% |
| Wednesday Night | 53°F | Partly Cloudy | 2 to 6 mph NE | 3% |
| Thursday | 74°F | Partly Sunny | 5 mph NE | 6% |
| Thursday Night | 56°F | Partly Cloudy then Slight Chance Rain Showers | 3 mph ENE | 15% |
| Friday | 75°F | Slight Chance Rain Showers then Mostly Sunny | 6 mph ENE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Armstrong (39.269, -92.704). Updated through the day.
Growing snapshot for Armstrong
Last spring frost
Apr 12
First fall frost
Oct 22
Growing season
190 days
Hardiness zone
6b
More local growing data for Armstrong: nearby ZIP 65230 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Salisbury, Mo (11.6 mi from Armstrong). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.