County Forecast for Big Stone City , SD
Change Zip Code: 
 
011400-
Grant-
Including the city of Milbank
132 AM CDT Sat Aug 1 2026

Rest of tonight   Partly cloudy. Lows in the upper 50s. Northwest winds 5 to 10 mph.
Saturday   Partly sunny. Highs around 80. North winds 5 to 10 mph.
Saturday night   Partly cloudy. Lows around 60. North winds around 5 mph, becoming south after midnight.
Sunday   Partly sunny. Humid with highs in the lower 80s. South winds 15 to 20 mph with gusts up to 30 mph.
Sunday night   Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 60s. South winds 15 to 20 mph with gusts up to 30 mph.
Monday   Partly sunny. Highs in the lower 80s.
Monday night   Showers likely with a chance of thunderstorms. Lows in the upper 50s. Chance of rain 70 percent.
Tuesday   Partly sunny. Not as warm with highs in the lower 70s.
Tuesday night and wednesday   Mostly clear. Lows in the mid 50s. Highs in the mid 70s.
Wednesday night and thursday   Partly cloudy. Lows in the upper 50s. Highs in the upper 70s.
Thursday night   Mostly clear with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Lows in the lower 60s. Chance of rain 20 percent.
Friday   Partly sunny. Highs in the lower 80s.
DTN Weather
Local Weather
Radar
County Forecast
State Forecast
DTN Weather Commentary
US Satellite
Current Surface Analysis
Wind Conditions
Today's Forecast Highs
Tonight's Forecast Lows
24 Hr Surface Forecast
Jet Stream Forecast
24 Hr Rainfall Estimate
24 Hr StormPath Accum
48 Hr StormPath Accum
6-10 Day Temp Forecast
6-10 Day Precip Forecast
Thunderstorm Outlook
US Drought Monitor
US Palmer Drought Index
US Crop Moisture Index
US Growing Degree Days
Soil Temperatures
Hurricane Tracking

DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
System Bringing Heavy Rain Eastward Through Corn Belt This Weekend
Posted at 12:06PM Fri Jul 31, 2026 CDT
Click here to get your local weather emailed to you each day.
Copyright DTN. All rights reserved. Disclaimer.
Powered By DTN