
Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam
Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >
Current conditions at
Mondell Field (KECS)
Lat: 43.89°NLon: 104.32°WElev: 4173ft.
Fair
61°F
16°C
| Humidity | 27% |
| Wind Speed | SE 10 mph |
| Barometer | 30.05 in |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Last update | 17 Oct 8:15 pm MDT |
Extended Forecast for
Newcastle WY
Tonight

Low: 45 °F
Mostly Clear
Sunday

High: 66 °F
Sunny
Sunday Night

Low: 41 °F
Mostly Clear
Monday

High: 60 °F
Sunny
Monday Night

Low: 46 °F
Mostly Clear
Tuesday

High: 68 °F
Sunny
Tuesday Night

Low: 47 °F
Mostly Clear
Wednesday

High: 66 °F
Sunny
Wednesday Night

Low: 50 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 45. Calm wind becoming north around 5 mph after midnight.
Sunday
Sunny, with a high near 66. North wind around 5 mph becoming calm.
Sunday Night
Mostly clear, with a low around 41. Light and variable wind becoming east around 6 mph.
Monday
Sunny, with a high near 60. Light east wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
Mostly clear, with a low around 46. Southeast wind 5 to 9 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 68. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 53.
Friday
A chance of rain. Partly sunny, with a high near 68.
Friday Night
A chance of rain. Mostly cloudy, with a low around 48. Breezy.
Saturday
A chance of rain. Partly sunny, with a high near 55. Breezy.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Newcastle WY
43.86°N 104.21°W (Elev. 4380 ft)
43.86°N 104.21°W (Elev. 4380 ft)
5:41 pm MDT Oct 17, 2026
8pm MDT Oct 17, 2026-6pm MDT Oct 24, 2026


