Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Mondell Field (KECS)

Lat: 43.89°NLon: 104.32°WElev: 4173ft.

Fair

77°F

25°C

Humidity	32%
Wind Speed	W 3 mph
Barometer	30.03 in
Dewpoint	45°F (7°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	18 Sep 6:15 pm MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Newcastle WY

Tonight
Low: 56 °F
Showers
Likely
Saturday
High: 68 °F
Showers
Likely and
Patchy Fog
Saturday Night
Low: 52 °F
Showers
Likely
Sunday
High: 61 °F
Showers
Sunday Night
Low: 49 °F
Showers then
Chance
Showers
Monday
High: 64 °F
Chance
Showers
Monday Night
Low: 50 °F
Mostly Clear
Tuesday
High: 70 °F
Mostly Sunny
Tuesday Night
Low: 54 °F
Slight Chance
Showers then
Partly Cloudy

Detailed Forecast

Tonight

Showers and thunderstorms likely, mainly before midnight, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.

Saturday

Showers likely, with thunderstorms also possible after 9am. Patchy fog between 7am and 8am. Otherwise, cloudy, with a high near 68. Calm wind becoming south around 6 mph in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 70%.

Saturday Night

Showers likely and possibly a thunderstorm. Cloudy, with a low around 52. Southeast wind 3 to 5 mph. Winds could gust as high as 15 mph. Chance of precipitation is 70%.

Sunday

Showers and possibly a thunderstorm. High near 61. Southeast wind 3 to 5 mph. Chance of precipitation is 100%.

Sunday Night

Showers and possibly a thunderstorm. Low around 49. Light southeast wind. Chance of precipitation is 80%.

Monday

A 30 percent chance of showers, mainly after noon. Partly sunny, with a high near 64. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

Monday Night

Mostly clear, with a low around 50.

Tuesday

Mostly sunny, with a high near 70.

Tuesday Night

A slight chance of showers before midnight. Mostly clear, with a low around 54.

Wednesday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75.

Wednesday Night

Mostly clear, with a low around 53.

Thursday

Sunny, with a high near 76.