Harman US

Java, SD Weather & Growing Conditions

This Afternoon
45°F
Mostly Cloudy
Mostly cloudy. High near 45, with temperatures falling to around 40 in the afternoon. North northwest wind 18 to 22 mph, with gusts as high as 41 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 45°F Mostly Cloudy 18 to 22 mph NNW 0%
Tonight 31°F Cloudy 14 to 18 mph NNW 1%
Wednesday 45°F Mostly Cloudy 20 mph NNW 2%
Wednesday Night 30°F Mostly Cloudy 13 to 17 mph NNW 0%
Thursday 44°F Mostly Sunny 7 to 13 mph N 0%
Thursday Night 25°F Partly Cloudy 8 mph ESE 0%
Friday 45°F Mostly Sunny 8 mph SSW 0%
Friday Night 30°F Partly Cloudy 6 to 10 mph SW 0%
Saturday 56°F Mostly Sunny 10 to 17 mph W 4%
Saturday Night 32°F Mostly Clear 12 mph W 1%
Sunday 57°F Sunny 8 to 12 mph SSW 0%
Sunday Night 37°F Mostly Clear 10 to 15 mph SW 0%
Monday 57°F Sunny 12 to 20 mph WNW 0%
Monday Night 34°F Partly Cloudy 9 mph W 0%

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

Growing snapshot for Java, SD

Last spring frost
May 8
First fall frost
Oct 1
Growing season
145 days
Hardiness zone
4b

Explore more for Java, SD: full frost dates · planting calendar · South Dakota frost dates

Climate data from the nearest NOAA station, Selby, Sd (8.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.