Newcastle, WY Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Newcastle, WY in one place.
A chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 72. Southeast wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Newcastle, WY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 1, 2026 3:09 PM MDT.
The active forecast window currently covers Jun 1 to Jun 7, 2026 for Newcastle, WY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 1 to Jun 7, 2026
- Latest sync
- Jun 1, 2026 3:09 PM MDT
- Forecast office
- UNR
- Source
- NOAA / NWS
Daily Outlook
This Week in Newcastle
Saturday looks like the warmest upcoming period in Newcastle at 88 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Saturday Night at about 13 to 20 mph SE.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 1, 2026 3:09 PM MDT
- Coverage
- 8 days
- Time zone
- America/Denver
- Forecast office
- UNR
- Radar station
- KUDX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 3am. Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. Southeast wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 3pm. Partly sunny. High near 80, with temperatures falling to around 78 in the afternoon. Southeast wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Partly cloudy. Low around 51, with temperatures rising to around 53 overnight. East wind 2 to 7 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
A chance of rain showers between noon and 3pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 78. West wind 2 to 6 mph. Chance of precipitation is 30%.
Mostly clear. Low around 52, with temperatures rising to around 54 overnight. East wind 2 to 9 mph.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53.
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 80.
Clear, with a low around 53.
Sunny, with a high near 88.
Mostly clear, with a low around 59.
Mostly sunny, with a high near 88.
A chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jun 1
|
Chance Showers And Thunderstorms
|
72°F |
13 to 16 mph
SE
|
|
Tonight
Jun 1
|
Chance Showers And Thunderstorms
|
52°F |
10 to 17 mph
SE
|
|
Tuesday
Jun 2
|
Partly Sunny then Chance Showers And Thunderstorms
|
80°F |
9 mph
SE
|
|
Tuesday Night
Jun 2
|
Chance Showers And Thunderstorms then Partly Cloudy
|
51°F |
2 to 7 mph
E
|
|
Wednesday
Jun 3
|
Mostly Sunny then Chance Showers And Thunderstorms
|
78°F |
2 to 6 mph
W
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
52°F |
2 to 9 mph
E
|
|
Thursday
Jun 4
|
Mostly Sunny then Chance Showers And Thunderstorms
|
80°F |
2 to 9 mph
SE
|
|
Thursday Night
Jun 4
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
53°F |
7 to 10 mph
NE
|
|
Friday
Jun 5
|
Sunny then Slight Chance Showers And Thunderstorms
|
80°F |
8 mph
NW
|
|
Friday Night
Jun 5
|
Clear
|
53°F |
6 to 9 mph
E
|
|
Saturday
Jun 6
|
Sunny
|
88°F |
6 to 16 mph
SE
|
|
Saturday Night
Jun 6
|
Mostly Clear
|
59°F |
13 to 20 mph
SE
|
|
Sunday
Jun 7
|
Mostly Sunny
|
88°F |
12 to 18 mph
SE
|
|
Sunday Night
Jun 7
|
Chance Showers And Thunderstorms
|
55°F |
8 to 16 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Newcastle.
