National Weather Service

News Headlines

SCN26-50: Discontinuation of the State Forecast Product (SFP) for all NWS Central Region, Southern Region, and Western Region Offices: Effective June 29, 2026
The Regional Temperatures and Precipitation Product for the State of Montana (RTPMT) will now be discontinued on July 7, 2026.

Current conditions at

ROCKY BOY (ROCM8)

Lat: 48.17478°NLon: 109.64728°WElev: 4700.0ft.

58°F

14°C

Humidity	NA
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

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

Extended Forecast for

9 Miles WSW Lloyd MT

Today
High: 74 °F
Mostly Sunny
Tonight
Low: 49 °F
Chance
T-storms then
Chance
Showers
Sunday
High: 65 °F
Slight Chance
Showers then
Sunny
Sunday Night
Low: 43 °F
Slight Chance
T-storms then
Slight Chance
Showers
Monday
High: 58 °F
Slight Chance
Showers then
Chance
Showers
Monday Night
Low: 41 °F
Slight Chance
Showers then
Partly Cloudy
Tuesday
High: 66 °F
Mostly Sunny
Tuesday Night
Low: 45 °F
Partly Cloudy
Wednesday
High: 74 °F
Mostly Sunny

Detailed Forecast

Today

Mostly sunny, with a high near 74. Southeast wind 13 to 20 mph, with gusts as high as 29 mph.

Tonight

A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Southeast wind 7 to 15 mph becoming west northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 50%.

Sunday

A 20 percent chance of showers before 7am. Mostly sunny, with a high near 65. West northwest wind 14 to 17 mph, with gusts as high as 25 mph.

Sunday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 43. West wind 6 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

Monday

A slight chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 58. West northwest wind 9 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

Monday Night

A 20 percent chance of showers before midnight. Partly cloudy, with a low around 41. Northwest wind 12 to 17 mph becoming light west northwest after midnight. Winds could gust as high as 31 mph.

Tuesday

Mostly sunny, with a high near 66. Calm wind becoming north northwest 5 to 7 mph in the morning.

Tuesday Night

Partly cloudy, with a low around 45. North northeast wind 5 to 7 mph becoming south southeast after midnight.

Wednesday

Mostly sunny, with a high near 74.

Wednesday Night

Mostly clear, with a low around 49.

Thursday

Mostly sunny, with a high near 78.

Thursday Night

Partly cloudy, with a low around 53.