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.

81°F

27°C

Humidity	13%
Wind Speed	SSW 5 MPH
Barometer	NA
Dewpoint	26°F (-3°C)
Visibility	NA
Heat Index	79°F (26°C)
Last update	16 Aug 01:45 PM MDT

More Information:

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

Extended Forecast for

4 Miles E Monarch MT

This Afternoon
High: 81 °F
Chance
T-storms
Tonight
Low: 54 °F
Chance
T-storms then
Partly Cloudy
Sunday
High: 76 °F
Haze then
Chance
T-storms
Sunday Night
Low: 54 °F
Chance
T-storms then
Partly Cloudy
Monday
High: 79 °F
Sunny
Monday Night
Low: 57 °F
Mostly Clear
Tuesday
High: 85 °F
Sunny
Tuesday Night
Low: 59 °F
Mostly Clear
Wednesday
High: 83 °F
Sunny

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly after 5pm. Widespread haze. Mostly sunny, with a high near 81. West southwest wind around 7 mph becoming northwest.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 9pm. Widespread haze before midnight. Mostly cloudy, with a low around 54. North northeast wind around 6 mph becoming calm in the evening.

Sunday

A 40 percent chance of showers and thunderstorms after noon. Widespread haze before noon, then widespread haze after 3pm. Mostly sunny, with a high near 76. Calm wind becoming west northwest around 6 mph in the afternoon.

Sunday Night

A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Widespread haze before 7pm. Mostly cloudy, with a low around 54. South wind 3 to 6 mph. Chance of precipitation is 30%.

Monday

Sunny, with a high near 79. Calm wind becoming west southwest around 6 mph in the afternoon.

Monday Night

Mostly clear, with a low around 57. West northwest wind around 6 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 85. Light and variable wind becoming west southwest around 6 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 59. West wind around 5 mph becoming light and variable after midnight.

Wednesday

Sunny, with a high near 83.

Wednesday Night

Partly cloudy, with a low around 54.