Weather in Jefferson, South Dakota
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 07:26 PM ET · Refreshes every hour
84°F
Clear sky
Feels like 78°F
33%
Humidity
15 mph
Wind Speed
About Weather in Jefferson
Jefferson is located in South Dakota (coordinates: 42.604266°N, 96.566089°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.