Harman US

Big Flat, AR Weather & Growing Conditions

Overnight
50°F
Mostly Cloudy
Mostly cloudy, with a low around 50. West northwest wind around 5 mph, with gusts as high as 20 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 50°F Mostly Cloudy 5 mph WNW 0%
Wednesday 65°F Mostly Sunny 5 to 10 mph WNW 0%
Wednesday Night 43°F Mostly Clear 0 mph 0%
Thursday 69°F Sunny 0 to 5 mph SW 0%
Thursday Night 47°F Partly Cloudy 0 to 5 mph W 5%
Friday 60°F Mostly Sunny 5 to 10 mph NNW 1%
Friday Night 40°F Partly Cloudy 0 to 5 mph N 1%
Saturday 56°F Partly Sunny 0 to 5 mph N 0%
Saturday Night 36°F Partly Cloudy 0 mph 0%
Sunday 61°F Sunny 0 to 5 mph NNW 0%
Sunday Night 37°F Mostly Clear 0 mph 0%
Monday 66°F Sunny 0 mph 0%
Monday Night 40°F Clear 0 mph 1%
Tuesday 69°F Sunny 0 mph 0%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Big Flat, AR

Last spring frost
Apr 14
First fall frost
Oct 28
Growing season
196 days
Hardiness zone
7b

Explore more for Big Flat, AR: full frost dates · planting calendar · Arkansas frost dates

Climate data from the nearest NOAA station, Calico Rock 2 Wsw, Ar (13.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.