Weather WorldHammann Lake, SD Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Hammann Lake Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  | | |  |  | | | |  |
| Partly Cloudy | Clearing | Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Chance of Rain | Chance of Rain | Partly Cloudy | Partly Cloudy | Chance of Rain | Rain |
| Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 31°FLo: -1°C | Hi: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 51°FHi: 11°C |
| POP: 30% | POP: 20% | POP: 70% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 622 PM MDT Tue Oct 27 2026 
Hammann Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Hammann Lake Weather Map
Hammann Lake Quick Facts
Hammann Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 513 PM MDT Tue Oct 27 2026
Key Messages
-Mild, mainly dry, and breezy at times through the rest of the week
Discussion
...(This Afternoon Through Monday) Issued at 1036 AM MDT Tue Oct 27 2026
Mean upper troughing over the PAC NW and western Canada will support general SW flow through the remainder week with weak impulses traversing the flow. Expect mainly dry weather weather as these systems fight very dry low levels, although a few sprinkles may be possible as each weak shortwave traverses the region. Dry air spreading into ...