NEWCASTLE, WY 82715 Weather Forecast & Current Conditions
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  82715 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

CUSTER, SD
Current Weather
9:53 PM MDT JUN 8, 2026
Clear
61°F
Feels Like: 61°F
Dewpoint: 48°F
Rel. Hum.: 62%
Visibility: 10 miles
Wind: ENE at 6 mph
Pressure: 30.01 inches
Last 72 hours

Local Area Snow Depth

South Dakota Current Weather

South Dakota MOS Forecast Weather


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(Automated weather data from NWS/FAA)
  82715 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

NEWCASTLE, WY 82715
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy. Lows in the upper 50s. Southeast winds 10 to 15 mph with gusts up to 30 mph.
TUESDAY
Partly cloudy in the morning, then mostly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 20 percent.
TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the upper 40s. West winds 10 to 15 mph. Gusts up to 30 mph, decreasing to 20 mph after midnight. Chance of rain 50 percent.
WEDNESDAY
Partly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 60s. West winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 40 percent.
WEDNESDAY NIGHT
A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of rain showers. Lows in the lower 40s. Northwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 20 percent.
THURSDAY
Mostly cloudy with a chance of rain showers in the morning, then partly cloudy in the afternoon. Highs in the mid 60s. Chance of rain 30 percent.
THURSDAY NIGHT
Mostly clear. Lows in the mid 40s.
FRIDAY
Sunny. Highs in the mid 70s.
FRIDAY NIGHT
Mostly clear. A slight chance of showers after midnight. Lows in the upper 40s. Chance of rain 20 percent.
SATURDAY
Partly cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 20 percent.
SATURDAY NIGHT
A slight chance of thunderstorms in the evening. Partly cloudy with a chance of rain showers. Lows in the lower 40s. Chance of rain 50 percent.
SUNDAY
Becoming partly cloudy. A chance of rain showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Chance of rain 40 percent.
SUNDAY NIGHT
Partly cloudy with a slight chance of rain showers and thunderstorms. Lows in the lower 40s. Chance of rain 20 percent.

  82715 WEATHER SATELLITE LOOPS
Visible Weather Satellite
NEWCASTLE, WY 82715
Infrared Weather Satellite
NEWCASTLE, WY 82715
  82715 WEATHER RADAR LOOP
NEXRAD Weather Radar
NEWCASTLE, WY 82715
 MOS COMPUTER WEATHER FORECAST

CUSTER, SD 3 hourly weather forecast
weather forecast created  7:00 AM CDT  6/ 8/2026
Monday
8 JUN 2026		 NEWCASTLE, WY 82715 weather forecast Day 1, 12 hours 12 PM 64° 64° Partly Cloudy 10%
RAIN
<.01 in		 0% Thunder
( 17% severe)		 SSE   8 45% 42°
High 69° NEWCASTLE, WY 82715 weather forecast Day 1, 15 hours 3 PM 68° 68° Clear SE   12 35% 39°
Partly Cloudy



 NEWCASTLE, WY 82715 weather forecast Day 1, 18 hours 6 PM 67° 67° Partly Cloudy 9%

 0% Thunder
( 18% severe)		 SE   12 37% 40°
NEWCASTLE, WY 82715 weather forecast Day 1, 21 hours 9 PM 62° 61° Mostly Cloudy E   8 46% 41°
Tuesday
9 JUN 2026		 NEWCASTLE, WY 82715 weather forecast Day 2, 0 hours 12 AM 58° 57° Mostly Cloudy 2%

 0% Thunder
( 7% severe)		 SSE   6 64% 46°
Low 52° NEWCASTLE, WY 82715 weather forecast Day 2, 3 hours 3 AM 57° 56° Partly Cloudy S   6 77% 50°
High 82° NEWCASTLE, WY 82715 weather forecast Day 2, 6 hours 6 AM 57° 56° Partly Cloudy 1%

 0% Thunder
( 3% severe)		 SSW   7 83% 52°

Partly Cloudy



 NEWCASTLE, WY 82715 weather forecast Day 2, 9 hours 9 AM 70° 70° Partly Cloudy SW   10 49% 50°
NEWCASTLE, WY 82715 weather forecast Day 2, 12 hours 12 PM 78° 77° Partly Cloudy 3%

 0% Thunder
( 16% severe)		 SW   17 20% 34°
NEWCASTLE, WY 82715 weather forecast Day 2, 15 hours 3 PM 79° 78° Mostly Cloudy WSW   18 15% 28°
NEWCASTLE, WY 82715 weather forecast Day 2, 18 hours 6 PM 77° 77° Partly Cloudy 1%

 0% Thunder
( 15% severe)		 WSW   17 16% 28°
NEWCASTLE, WY 82715 weather forecast Day 2, 21 hours 9 PM 69° 69° Mostly Cloudy W   14 24% 31°
Wednesday
10 JUN 2026		 NEWCASTLE, WY 82715 weather forecast Day 3, 0 hours 12 AM 61° 60° Mostly Cloudy 8%

 0% Thunder
( 11% severe)		 W   9 35% 33°
Low 50° NEWCASTLE, WY 82715 weather forecast Day 3, 3 hours 3 AM 55° 53° Partly Cloudy W   7 51% 37°
High 65° NEWCASTLE, WY 82715 weather forecast Day 3, 6 hours 6 AM 51° 48° Partly Cloudy 11%
RAIN
<.01 in		 0% Thunder
( 4% severe)		 WNW   9 63% 39°

Partly Cloudy



 NEWCASTLE, WY 82715 weather forecast Day 3, 9 hours 9 AM 57° 54° Clear W   13 45% 36°
NEWCASTLE, WY 82715 weather forecast Day 3, 15 hours 12 PM 60° 57° Partly Cloudy 6%

 0% Thunder
( 15% severe)		 W   16 33% 31°
NEWCASTLE, WY 82715 weather forecast Day 3, 18 hours 3 PM 63° 61° Partly Cloudy W   16 25% 27°
NEWCASTLE, WY 82715 weather forecast Day 3, 21 hours 6 PM 63° 61° Partly Cloudy     W   14 23% 25°

CUSTER, 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 41° Low 40° Low 45° Low 45° Low 40°
High 57° High 70° High 71° High 60° High 62°
NEWCASTLE, WY 82715 weather forecast Day 4 NEWCASTLE, WY 82715 weather forecast Day 5 NEWCASTLE, WY 82715 weather forecast Day 6 NEWCASTLE, WY 82715 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
32% Rain		 Partly Cloudy
15% Rain		 Partly Cloudy
15% Rain		 Overcast
48% Rain		 Overcast
38% Rain
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