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

Monarch Canyon US-89 MP 53.5 (MTMON)

Lat: 47.1429°NLon: 110.82309°WElev: 5197.0ft.

52°F

11°C

Humidity	67%
Wind Speed	WSW 1 MPH
Barometer	NA
Dewpoint	41°F (5°C)
Visibility	NA
Last update	17 Aug 04:45 AM MDT

More Information:

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

Extended Forecast for

10 Miles E Monarch MT

Today
High: 72 °F
Mostly Sunny
then Showers
Likely
Tonight
Low: 53 °F
Chance
T-storms then
Haze
Monday
High: 76 °F
Sunny then
Chance
Showers
Monday Night
Low: 58 °F
Mostly Clear
then Haze
Tuesday
High: 84 °F
Sunny
Tuesday Night
Low: 59 °F
Mostly Clear
Wednesday
High: 81 °F
Sunny
Wednesday Night
Low: 53 °F
Partly Cloudy
Thursday
High: 70 °F
Sunny

Detailed Forecast

Today

A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 72. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

A 40 percent chance of showers and thunderstorms, mainly before 9pm. Widespread haze after 2am. Mostly cloudy, with a low around 53. South southwest wind 5 to 7 mph.

Monday

A 50 percent chance of showers after noon. Mostly sunny, with a high near 76. South southwest wind 5 to 7 mph.

Monday Night

Widespread haze between midnight and 1am. Mostly clear, with a low around 58. West wind around 6 mph becoming light and variable in the evening.

Tuesday

Sunny, with a high near 84. South southwest wind around 6 mph.

Tuesday Night

Mostly clear, with a low around 59. North northwest wind around 6 mph becoming light and variable in the evening.

Wednesday

Sunny, with a high near 81. South southwest wind 6 to 8 mph becoming west in the afternoon.

Wednesday Night

Partly cloudy, with a low around 53. Northwest wind 5 to 7 mph becoming light and variable after midnight.