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The Regional Temperatures and Precipitation Product for the State of Montana (RTPMT) will now be discontinued on July 7, 2026.

Current conditions at

Gary Cooper Bridge I-15 MP 242 (MTYEP)

Lat: 47.13948°NLon: 111.85908°WElev: 3427.0ft.

69°F

21°C

Humidity	48%
Wind Speed	N 5 MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Last update	25 Jun 08:45 PM MDT

More Information:

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

Extended Forecast for

17 Miles SE Cascade MT

Tonight
Low: 55 °F
Mostly Cloudy
Friday
High: 74 °F
Chance
Showers then
Showers
Likely
Friday Night
Low: 50 °F
Showers
Likely
Saturday
High: 66 °F
Chance
Showers then
Showers
Likely
Saturday Night
Low: 46 °F
Showers
Sunday
High: 57 °F
Showers
Likely
Sunday Night
Low: 44 °F
Showers
Likely
Monday
High: 59 °F
Showers and
Breezy
Monday Night
Low: 46 °F
Chance
Showers and
Breezy then
Mostly Cloudy

Detailed Forecast

Tonight

Mostly cloudy, with a low around 55. Calm wind becoming south southeast around 5 mph after midnight.

Friday

A chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 74. South southeast wind around 5 mph becoming light and variable. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

Showers likely and possibly a thunderstorm before 4am, then a slight chance of showers between 4am and 5am. Mostly cloudy, with a low around 50. South southwest wind around 5 mph. Chance of precipitation is 70%.

Saturday

A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 66. South southwest wind 3 to 5 mph. Chance of precipitation is 70%.

Saturday Night

Showers and possibly a thunderstorm. Low around 46. Southwest wind around 6 mph. Chance of precipitation is 90%.

Sunday

Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 57. South southwest wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.

Sunday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 44. South southwest wind 17 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.

Monday

Showers, with thunderstorms also possible after noon. Cloudy, with a high near 59. Breezy, with a west southwest wind 21 to 26 mph, with gusts as high as 34 mph.

Monday Night

A chance of showers before midnight. Mostly cloudy, with a low around 46. Breezy.

Tuesday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69.

Tuesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 47.

Wednesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 73.

Wednesday Night

Partly cloudy, with a low around 49.

Thursday

Mostly sunny, with a high near 80.