Harman US

Johnson, AR Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Johnson, a city in Washington County, Arkansas.

This Afternoon
68°F
Chance Rain Showers
A chance of rain showers and patchy drizzle before 5pm, then patchy drizzle and a slight chance of rain showers. Mostly cloudy. High near 68, with temperatures falling to around 60 in the afternoon. West wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

7-day forecast for Johnson

WhenTempForecastWindPrecip
This Afternoon 68°F Chance Rain Showers 10 mph W 28%
Tonight 45°F Patchy Drizzle then Mostly Cloudy 5 to 10 mph W 14%
Wednesday 64°F Mostly Sunny 5 to 10 mph W 0%
Wednesday Night 40°F Mostly Clear 0 to 5 mph SW 0%
Thursday 66°F Mostly Sunny then Chance Rain Showers 0 to 5 mph SW 31%
Thursday Night 40°F Chance Rain Showers then Mostly Cloudy 0 to 5 mph N 27%
Friday 59°F Mostly Sunny 0 to 10 mph N 0%
Friday Night 37°F Partly Cloudy 0 to 5 mph N 0%
Saturday 59°F Partly Sunny 0 to 5 mph N 0%
Saturday Night 36°F Mostly Clear 0 mph 5%
Sunday 63°F Sunny 0 to 5 mph W 7%
Sunday Night 36°F Mostly Clear 0 to 5 mph SW 1%
Monday 66°F Sunny 0 to 10 mph SW 0%
Monday Night 40°F Mostly Clear 0 to 5 mph SW 0%

Forecast source: National Weather Service (api.weather.gov) for Johnson (36.134, -94.174). Updated through the day.

Growing snapshot for Johnson

Last spring frost
Apr 4
First fall frost
Oct 31
Growing season
209 days
Hardiness zone
7a

More local growing data for Johnson: nearby ZIP 72762 weather · frost dates · planting calendar · Arkansas frost dates

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Climate data from the nearest NOAA station, Fayetteville Exp Stn, Ar (6.2 mi from Johnson). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.