Grant County, SD — Severe Weather & Radar
No active severe-weather warnings for Grant County, SD right now. Live radar is below — set up alerts to get warned the moment one is issued.
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Severe-weather outlook
General (non-severe) thunderstorms are possible in Grant County, SDtoday, per the Storm Prediction Center's Day 1 outlook.
3-day forecast
Forecast via Open-Meteo.
When is severe weather most likely near Grant?
Grant County lies in the northern Great Plains, where the severe-weather season peaks from May through July.
Large hail, damaging winds, and tornadoes are the main threats, most often from afternoon and evening thunderstorms.
Based on long-term NOAA / NWS Storm Prediction Center climatology.
In Grant County, SD
Grant County, SD has an estimated 7,600 residents, plus 2 nursing homes, 7 schools, 1 mobile-home parks that could be in a storm's path. Atmostorm shows which of them fall inside an active warning polygon.
Emergency-management view: who & what is in the warned path →
Not an official source — always confirm with the National Weather Service at weather.gov. Data aggregated from NWS/SPC. Facility and population figures are decision-support estimates.