Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

unknown precip

62°F

17°C

Humidity	80%
Wind Speed	WSW 7 MPH
Barometer	NA
Dewpoint	56°F (13°C)
Visibility	NA
Last update	16 Aug 07:15 PM MDT

More Information:

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

Extended Forecast for

7 Miles ENE Garrison MT

Tonight
Low: 48 °F
Chance
T-storms then
Haze
Sunday
High: 78 °F
Haze then
Chance
T-storms
Sunday Night
Low: 47 °F
Slight Chance
T-storms then
Partly Cloudy
Monday
High: 84 °F
Sunny
Monday Night
Low: 50 °F
Mostly Clear
Tuesday
High: 90 °F
Sunny
Tuesday Night
Low: 50 °F
Partly Cloudy
Wednesday
High: 87 °F
Sunny
Wednesday Night
Low: 48 °F
Mostly Clear

Detailed Forecast

Tonight

A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Widespread haze before 5am. Areas of smoke between 11pm and 3am. Mostly cloudy, with a low around 48. Northwest wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

A 50 percent chance of showers and thunderstorms after noon. Widespread haze before 7am. Partly sunny, with a high near 78. Calm wind becoming west 5 to 7 mph in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 47. South southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

Monday

Sunny, with a high near 84. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

Monday Night

Mostly clear, with a low around 50. West wind around 6 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 90.

Tuesday Night

Partly cloudy, with a low around 50.

Wednesday

Sunny, with a high near 87.

Wednesday Night

Mostly clear, with a low around 48.