SUMMIT, SD 57266 Weather Forecast & Current Conditions

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SISSETON, SD
Current Weather

9:56 PM CDT JUN 8, 2026
73°F
Feels Like: 73°F
Dewpoint: 68°F
Rel. Hum.: 84%
Visibility:
Wind: NE at 3 mph
Pressure: 29.87 inches
Last 72 hours

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SUMMIT, SD 57266
Weather Forecast

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Snow Depth pages
REST OF TONIGHT
Mostly cloudy. Lows in the mid 60s. Northeast winds around 5 mph.
TUESDAY
Partly sunny and breezy, warmer with highs in the lower 90s. Southeast winds 10 to 15 mph, increasing to 15 to 25 mph in the afternoon.
TUESDAY NIGHT
Thunderstorms likely. Some thunderstorms may be severe with damaging winds and large hail. Breezy with lows in the mid 60s. South winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 70 percent.
WEDNESDAY
Partly sunny. A slight chance of thunderstorms in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Some thunderstorms may be severe with damaging winds and large hail in the morning. Breezy with highs in the lower 80s. Southwest winds 10 to 15 mph, becoming west 15 to 25 mph in the afternoon. Chance of rain 40 percent.
WEDNESDAY NIGHT
Mostly clear in the evening, then partly cloudy with a slight chance of showers after midnight. Less humid with lows in the upper 50s. West winds 15 to 20 mph. Gusts up to 35 mph in the evening. Chance of rain 20 percent.
THURSDAY
Partly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 70s. Chance of rain 40 percent.
THURSDAY NIGHT
Mostly cloudy in the evening, then clearing. Breezy with lows in the mid 50s.
FRIDAY
Mostly sunny and breezy. Highs in the upper 70s.
FRIDAY NIGHT THROUGH SATURDAY NIGHT
Partly cloudy. Lows in the lower 50s. Highs in the lower 70s.
SUNDAY AND SUNDAY NIGHT
Mostly cloudy. A 20 percent chance of showers. Highs in the lower 70s. Lows in the lower 50s.
MONDAY
Partly sunny. A slight chance of showers in the morning, then a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent.

Visible Weather Satellite
SUMMIT, SD 57266
Infrared Weather Satellite
SUMMIT, SD 57266
NEXRAD Weather Radar
SUMMIT, SD 57266

SISSETON, SD 3 hourly weather forecast

weather forecast created  6:00 AM MDT  6/ 8/2026
Monday
8 JUN 2026
SUMMIT, SD 57266 weather forecast Day 1, 12 hours 1 PM 82° 84° Mostly Cloudy 27%
RAIN
.5–1 in
0% Thunder
( 40% severe)
NNW   10 55% 64°
High 83° SUMMIT, SD 57266 weather forecast Day 1, 15 hours 4 PM 81° 82° Mostly Cloudy NNW   12 54% 63°
Mostly Cloudy

Chance of Rain

SUMMIT, SD 57266 weather forecast Day 1, 18 hours 7 PM 81° 82° Mostly Cloudy 8%

0% Thunder
( 22% severe)
N   9 51% 61°
SUMMIT, SD 57266 weather forecast Day 1, 21 hours 10 PM 71° 71° Mostly Cloudy NNE   6 73% 62°
Tuesday
9 JUN 2026
SUMMIT, SD 57266 weather forecast Day 2, 0 hours 1 AM 66° 66° Mostly Cloudy 16%
RAIN
<.01 in
0% Thunder
( 20% severe)
NW   3 84% 61°
Low 62° SUMMIT, SD 57266 weather forecast Day 2, 3 hours 4 AM 65° 65° Mostly Cloudy N   1 84% 60°
High 95° SUMMIT, SD 57266 weather forecast Day 2, 6 hours 7 AM 67° 67° Mostly Cloudy 4%

0% Thunder
( 7% severe)
SE   3 84% 62°

Partly Cloudy



SUMMIT, SD 57266 weather forecast Day 2, 9 hours 10 AM 78° 80° Partly Cloudy SSE   12 67% 66°
SUMMIT, SD 57266 weather forecast Day 2, 12 hours 1 PM 88° 90° Partly Cloudy 15%
RAIN
<.01 in
0% Thunder
( 12% severe)
SSE   18 48% 66°
SUMMIT, SD 57266 weather forecast Day 2, 15 hours 4 PM 91° 93° Partly Cloudy SSE   25 42% 65°
SUMMIT, SD 57266 weather forecast Day 2, 18 hours 7 PM 91° 93° Clear 66%
RAIN
***
0% Thunder
( 53% severe)
SSE   24 41% 64°
SUMMIT, SD 57266 weather forecast Day 2, 21 hours 10 PM 77° 79° Mostly Cloudy SSE   20 69% 66°
Wednesday
10 JUN 2026
SUMMIT, SD 57266 weather forecast Day 3, 0 hours 1 AM 71° 71° Mostly Cloudy 33%
RAIN
>2 in
0% Thunder
( 32% severe)
SSE   15 84% 66°
Low 67° SUMMIT, SD 57266 weather forecast Day 3, 3 hours 4 AM 70° 70° Mostly Cloudy S   12 81% 64°
High 85° SUMMIT, SD 57266 weather forecast Day 3, 6 hours 7 AM 70° 70° Mostly Cloudy 19%
RAIN
<.01 in
0% Thunder
( 13% severe)
S   10 81% 64°

Partly Cloudy

Chance of Rain

SUMMIT, SD 57266 weather forecast Day 3, 9 hours 10 AM 77° 79° Partly Cloudy SW   13 62% 63°
SUMMIT, SD 57266 weather forecast Day 3, 15 hours 1 PM 81° 81° Partly Cloudy 24%
RAIN
.01–.1 in
0% Thunder
( 30% severe)
W   17 47% 59°
SUMMIT, SD 57266 weather forecast Day 3, 18 hours 4 PM 79° 80° Partly Cloudy WNW   23 44% 55°
SUMMIT, SD 57266 weather forecast Day 3, 21 hours 7 PM 75° 75° Partly Cloudy     W   22 45% 52°

SISSETON, SD extended weather forecast

Thursday
11 JUN 2026
Friday
12 JUN 2026
Saturday
13 JUN 2026
Sunday
14 JUN 2026
Monday
15 JUN 2026
Low 56° Low 53° Low 53° Low 51° Low 51°
High 74° High 74° High 72° High 61° High 69°
SUMMIT, SD 57266 weather forecast Day 4 SUMMIT, SD 57266 weather forecast Day 5 SUMMIT, SD 57266 weather forecast Day 6 SUMMIT, SD 57266 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
32% Rain
Partly Cloudy
29% Rain
Partly Cloudy
18% Rain
Overcast
51% Rain
Overcast
53% Rain
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