Harman US

Armstrong, MO Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Armstrong, a city in Howard County, Missouri.

This Afternoon
59°F
Cloudy
Cloudy, with a high near 59. West wind around 12 mph, with gusts as high as 20 mph.

7-day forecast for Armstrong

WhenTempForecastWindPrecip
This Afternoon 59°F Cloudy 12 mph W 2%
Tonight 41°F Partly Cloudy 8 mph WSW 2%
Thursday 57°F Partly Sunny 7 to 10 mph WNW 10%
Thursday Night 41°F Cloudy 7 mph NNW 8%
Friday 53°F Partly Sunny 5 to 9 mph N 2%
Friday Night 30°F Partly Cloudy 0 to 3 mph NNE 0%
Saturday 54°F Mostly Sunny 2 mph NNW 0%
Saturday Night 31°F Mostly Clear 2 mph NW 0%
Sunday 62°F Sunny 5 mph W 0%
Sunday Night 34°F Clear 2 mph SW 0%
Monday 67°F Sunny 2 to 8 mph SSW 0%
Monday Night 39°F Clear 5 mph SW 0%
Tuesday 68°F Sunny 5 mph W 2%
Tuesday Night 41°F Mostly Clear 2 mph NE 1%

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

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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 Nov 5, 2026.