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

Comertown Turn-Off MT-5 MP 13.4 (MTCOM)

Lat: 48.81°NLon: 104.2529°WElev: 2359.0ft.

68°F

20°C

Humidity	48%
Wind Speed	SSE 8 MPH
Barometer	NA
Dewpoint	47°F (8°C)
Visibility	NA
Last update	15 Aug 01:30 PM MDT

More Information:

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

Extended Forecast for

8 Miles WNW Westby MT

This Afternoon
High: 73 °F
Mostly Sunny
Tonight
Low: 55 °F
Slight Chance
Showers then
Slight Chance
T-storms
Saturday
High: 79 °F
Mostly Sunny
Saturday Night
Low: 60 °F
Chance
T-storms
Sunday
High: 80 °F
Partly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 61 °F
Chance
T-storms
Monday
High: 83 °F
Mostly Cloudy
then Slight
Chance
T-storms
Monday Night
Low: 60 °F
Slight Chance
T-storms then
Partly Cloudy
Tuesday
High: 85 °F
Sunny

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 73. East wind 10 to 13 mph, with gusts as high as 20 mph.

Tonight

A slight chance of showers before midnight, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 55. East southeast wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Saturday

Mostly sunny, with a high near 79. Southeast wind 15 to 21 mph, with gusts as high as 31 mph.

Saturday Night

A 40 percent chance of showers and thunderstorms, mainly before midnight. Increasing clouds, with a low around 60. Southeast wind 14 to 21 mph, with gusts as high as 30 mph.

Sunday

A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 80. South southeast wind 11 to 14 mph, with gusts as high as 20 mph.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 61. South southeast wind 7 to 10 mph.

Monday

A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 83. Southeast wind 7 to 10 mph becoming north in the afternoon.

Monday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60. East northeast wind 7 to 9 mph.

Tuesday

Sunny, with a high near 85. Southeast wind 7 to 11 mph.

Tuesday Night

Partly cloudy, with a low around 62. Southeast wind around 11 mph.

Wednesday

Sunny, with a high near 86. South southeast wind 9 to 14 mph, with gusts as high as 21 mph.

Wednesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60.

Thursday

A slight chance of showers. Mostly sunny, with a high near 78.