NEWCASTLE, WY 82701 Weather Forecast & Current Conditions

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CUSTER, SD
Current Weather

10:53 PM MDT JUN 8, 2026
Clear
57°F
Feels Like: 56°F
Dewpoint: 48°F
Rel. Hum.: 72%
Visibility: 10 miles
Wind: ENE at 7 mph
Pressure: 30.02 inches
Last 72 hours

Local Area Snow Depth

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NEWCASTLE, WY 82701
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
OVERNIGHT
Partly cloudy. Lows in the mid 50s. Southeast winds 15 to 20 mph with gusts up to 30 mph.
TUESDAY
Mostly cloudy. A slight chance of showers and thunderstorms in the afternoon. Breezy with highs in the upper 80s. South winds 15 to 20 mph with gusts up to 30 mph, increasing to southwest 20 to 30 mph with gusts up to 40 mph in the afternoon. Chance of rain 20 percent.
TUESDAY NIGHT
Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Breezy with lows in the upper 40s. West winds 15 to 25 mph with gusts up to 40 mph, becoming northwest 10 to 15 mph after midnight. Chance of rain 50 percent.
WEDNESDAY
Mostly sunny and breezy. Highs in the lower 70s. Northwest winds 10 to 15 mph with gusts up to 30 mph, increasing to west 15 to 25 mph with gusts up to 45 mph in the afternoon.
WEDNESDAY NIGHT
Partly cloudy and breezy. Lows in the lower 40s. Northwest winds 15 to 25 mph. Gusts up to 40 mph, decreasing to 30 mph after midnight.
THURSDAY
Partly cloudy. A slight chance of showers in the morning. Breezy with highs in the upper 60s. Chance of rain 20 percent.
THURSDAY NIGHT
Clear. Lows in the lower 40s.
FRIDAY
Sunny. Highs around 80.
FRIDAY NIGHT
Clear. Lows in the mid 40s.
SATURDAY
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 20 percent.
SATURDAY NIGHT
Partly cloudy with a chance of showers. A chance of thunderstorms in the evening, then a slight chance of thunderstorms after midnight. Lows in the lower 40s. Chance of rain 50 percent.
SUNDAY
Partly cloudy. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 30 percent.
SUNDAY NIGHT
A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the lower 40s. Chance of rain 20 percent.

Visible Weather Satellite
NEWCASTLE, WY 82701
Infrared Weather Satellite
NEWCASTLE, WY 82701
NEXRAD Weather Radar
NEWCASTLE, WY 82701

CUSTER, SD 3 hourly weather forecast

weather forecast created  7:00 PM CDT  6/ 8/2026
Tuesday
9 JUN 2026
NEWCASTLE, WY 82701 weather forecast Day 1, 0 hours 12 AM 58° 57° Mostly Cloudy 1%

0% Thunder
( 6% severe)
ESE   6 67% 47°
Low 57° NEWCASTLE, WY 82701 weather forecast Day 1, 3 hours 3 AM 58° 57° Partly Cloudy SSW   6 80% 52°
High 82° NEWCASTLE, WY 82701 weather forecast Day 1, 6 hours 6 AM 58° 57° Partly Cloudy 0%

0% Thunder
( 2% severe)
SSW   7 87% 54°

Partly Cloudy



NEWCASTLE, WY 82701 weather forecast Day 1, 9 hours 9 AM 70° 70° Partly Cloudy SSW   10 55% 53°
NEWCASTLE, WY 82701 weather forecast Day 1, 12 hours 12 PM 79° 78° Partly Cloudy 4%

0% Thunder
( 14% severe)
SW   17 20% 35°
NEWCASTLE, WY 82701 weather forecast Day 1, 15 hours 3 PM 79° 78° Mostly Cloudy SW   17 15% 28°
NEWCASTLE, WY 82701 weather forecast Day 1, 18 hours 6 PM 77° 77° Mostly Cloudy 3%

0% Thunder
( 10% severe)
WSW   18 18% 30°
NEWCASTLE, WY 82701 weather forecast Day 1, 21 hours 9 PM 69° 69° Partly Cloudy W   14 25% 32°
Wednesday
10 JUN 2026
NEWCASTLE, WY 82701 weather forecast Day 2, 0 hours 12 AM 61° 60° Mostly Cloudy 3%

0% Thunder
( 12% severe)
W   9 38% 35°
Low 49° NEWCASTLE, WY 82701 weather forecast Day 2, 3 hours 3 AM 55° 53° Mostly Cloudy WNW   8 53% 38°
High 68° NEWCASTLE, WY 82701 weather forecast Day 2, 6 hours 6 AM 51° 48° Partly Cloudy 2%

0% Thunder
( 5% severe)
WNW   9 63% 39°

Partly Cloudy



NEWCASTLE, WY 82701 weather forecast Day 2, 9 hours 9 AM 58° 55° Partly Cloudy W   13 42% 35°
NEWCASTLE, WY 82701 weather forecast Day 2, 12 hours 12 PM 62° 60° Clear 4%

0% Thunder
( 17% severe)
W   16 28% 29°
NEWCASTLE, WY 82701 weather forecast Day 2, 15 hours 3 PM 66° 66° Clear W   16 19% 23°
NEWCASTLE, WY 82701 weather forecast Day 2, 18 hours 6 PM 65° 65° Partly Cloudy 17%
RAIN
<.01 in
0% Thunder
( 14% severe)
W   14 20% 23°
NEWCASTLE, WY 82701 weather forecast Day 2, 21 hours 9 PM 55° 52° Partly Cloudy NNW   9 38% 30°

CUSTER, SD extended weather forecast

BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
Low 45° Low 41° Low 40° Low 45° Low 45°
High 64° High 57° High 70° High 71° High 60°
NEWCASTLE, WY 82701 weather forecast Day 3 NEWCASTLE, WY 82701 weather forecast Day 4 NEWCASTLE, WY 82701 weather forecast Day 5 NEWCASTLE, WY 82701 weather forecast Day 6 NEWCASTLE, WY 82701 weather forecast Day 7
Partly Cloudy
26% Rain
Partly Cloudy
32% Rain
Partly Cloudy
15% Rain
Partly Cloudy
15% Rain
Overcast
48% Rain
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