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

73°F

23°C

Humidity	57%
Wind Speed	ENE 4 MPH
Barometer	NA
Dewpoint	57°F (14°C)
Visibility	NA
Last update	16 Aug 04:30 PM MDT

More Information:

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

Extended Forecast for

9 Miles NW Garrison MT

This Afternoon
High: 86 °F
Chance
T-storms
Tonight
Low: 50 °F
Chance
T-storms then
Partly Cloudy
Sunday
High: 80 °F
Partly Sunny
then Chance
T-storms
Sunday Night
Low: 48 °F
Slight Chance
T-storms then
Partly Cloudy
Monday
High: 86 °F
Sunny
Monday Night
Low: 51 °F
Mostly Clear
Tuesday
High: 92 °F
Sunny
Tuesday Night
Low: 51 °F
Partly Cloudy
Wednesday
High: 89 °F
Sunny

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. West northwest wind 11 to 13 mph.

Tonight

A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Widespread haze between 9pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 50. West northwest wind 8 to 13 mph becoming light and variable in the evening. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 80. Calm wind becoming west northwest around 6 mph in the afternoon. New rainfall amounts of less than a tenth 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 48. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

Monday

Sunny, with a high near 86. Calm wind becoming west around 6 mph in the afternoon.

Monday Night

Mostly clear, with a low around 51.

Tuesday

Sunny, with a high near 92.

Tuesday Night

Partly cloudy, with a low around 51.

Wednesday

Sunny, with a high near 89.

Wednesday Night

Mostly clear, with a low around 48.