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

BIG SHEEP MOUNTAIN (LCFM8)

Lat: 47.02819°NLon: 105.80472°WElev: 3172.0ft.

77°F

25°C

Humidity	45%
Wind Speed	SSE 10 MPH
Barometer	NA
Dewpoint	54°F (12°C)
Visibility	NA
Heat Index	78°F (26°C)
Last update	16 Aug 08:08 PM MDT

More Information:

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

Extended Forecast for

11 Miles NE Rock Springs MT

Tonight
Low: 61 °F
Partly Cloudy
and Breezy
then Partly
Cloudy
Sunday
High: 89 °F
Sunny
Sunday Night
Low: 64 °F
Showers
Likely then
Slight Chance
T-storms
Monday
High: 91 °F
Slight Chance
Showers then
Sunny
Monday Night
Low: 64 °F
Mostly Clear
Tuesday
High: 98 °F
Hot
Tuesday Night
Low: 68 °F
Mostly Clear
Wednesday
High: 99 °F
Hot
Wednesday Night
Low: 66 °F
Partly Cloudy

Detailed Forecast

Tonight

Partly cloudy, with a low around 61. Breezy, with an east southeast wind 17 to 22 mph becoming light and variable after midnight. Winds could gust as high as 32 mph.

Sunday

Sunny, with a high near 89. West wind 5 to 10 mph becoming north in the afternoon.

Sunday Night

A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and midnight, then a slight chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 64. North wind 5 to 11 mph becoming west in the evening. Chance of precipitation is 60%.

Monday

A 20 percent chance of showers before noon. Mostly sunny, with a high near 91. Southeast wind 5 to 7 mph.

Monday Night

Mostly clear, with a low around 64. Southeast wind around 7 mph.

Tuesday

Sunny and hot, with a high near 98. Southeast wind 6 to 10 mph.

Tuesday Night

Mostly clear, with a low around 68. Southeast wind around 10 mph.

Wednesday

Sunny and hot, with a high near 99. Southeast wind 10 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

Wednesday Night

Partly cloudy, with a low around 66. North wind 8 to 10 mph.