National Weather Service

News Headlines

Denver's Monthly Weather Summary for September 2026

Current conditions at

Sidney, Sidney Municipal Airport (KSNY)

Lat: 41.1°NLon: 102.99°WElev: 4311ft.

Fair

72°F

22°C

Humidity	38%
Wind Speed	NE 15 mph
Barometer	30.25 in (1021.1 mb)
Dewpoint	45°F (7°C)
Visibility	10.00 mi
Last update	3 Oct 4:53 pm MDT

More Information:

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

Extended Forecast for

Crook CO

Tonight
Low: 46 °F
Clear and
Breezy then
Mostly Clear
Sunday
High: 78 °F
Sunny then
Sunny and
Breezy
Sunday Night
Low: 52 °F
Clear and
Breezy then
Clear
Monday
High: 88 °F
Sunny
Monday Night
Low: 57 °F
Mostly Clear
Tuesday
High: 87 °F
Sunny
Tuesday Night
Low: 54 °F
Mostly Clear
Wednesday
High: 81 °F
Sunny
Wednesday Night
Low: 55 °F
Clear

Detailed Forecast

Tonight

Mostly clear, with a low around 46. Breezy, with a northeast wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.

Sunday

Sunny, with a high near 78. Breezy, with a south southeast wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.

Sunday Night

Clear, with a low around 52. Breezy, with a south southeast wind 9 to 16 mph, with gusts as high as 25 mph.

Monday

Sunny, with a high near 88. South southwest wind 7 to 9 mph, with gusts as high as 17 mph.

Monday Night

Mostly clear, with a low around 57. South southeast wind around 7 mph becoming west after midnight.

Tuesday

Sunny, with a high near 87.

Tuesday Night

Mostly clear, with a low around 54.

Wednesday

Sunny, with a high near 81.