South Dakota Freeze Warning | Effective 05/18/2026 22:50

Headline: 
Freeze Warning issued May 19 at 12:50AM CDT until May 20 at 8:00AM CDT by NWS Aberdeen SD
Event: 
Freeze Warning
Urgency: 
Expected
Effective: 
May 18, 2026 - 10:50pm
Expires: 
May 19, 2026 - 9:00am
Description: 
* WHAT...For the Frost Advisory, temperatures as low as 36 will result in frost formation. For the Freeze Warning, sub-freezing temperatures as low as 30 expected. * WHERE...Hughes, Sully, Campbell, Edmunds, McPherson, Potter, and Walworth Counties. * WHEN...For the Frost Advisory, from 4 AM to 9 AM CDT this morning. For the Freeze Warning, from 11 PM this evening to 8 AM CDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Instruction: 
Take steps now to protect tender plants from the cold.
Area Description: 
Campbell; McPherson; Walworth; Edmunds; Potter; Sully; Hughes
Forcast Office: 
NWS Aberdeen SD