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

Great Falls, Great Falls International Airport (KGTF)

Lat: 47.47333°NLon: 111.38222°WElev: 3675.0ft.

Clear

55°F

13°C

Humidity	66%
Wind Speed	SSW 9 MPH
Barometer	29.92 in (1013.21 mb)
Dewpoint	44°F (7°C)
Visibility	10.00 mi
Last update	16 Aug 05:20 AM MDT

More Information:

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

Extended Forecast for

6 Miles SSE Ulm MT

Today
High: 92 °F
Sunny then
Slight Chance
T-storms
Tonight
Low: 58 °F
Slight Chance
T-storms then
Partly Cloudy
Sunday
High: 87 °F
Haze then
Slight Chance
T-storms
Sunday Night
Low: 56 °F
Haze then
Partly Cloudy
Monday
High: 90 °F
Sunny
Monday Night
Low: 58 °F
Mostly Clear
Tuesday
High: 96 °F
Hot
Tuesday Night
Low: 60 °F
Partly Cloudy
Wednesday
High: 94 °F
Sunny

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms after 5pm. Widespread haze after noon. Sunny, with a high near 92. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph.

Tonight

A slight chance of showers and thunderstorms between 7pm and 11pm. Widespread haze before midnight. Mostly cloudy, with a low around 58. West northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Sunday

A 20 percent chance of showers and thunderstorms after noon. Widespread haze before 9am, then widespread haze after 3pm. Mostly sunny, with a high near 87. Light and variable wind becoming west 5 to 8 mph in the afternoon.

Sunday Night

Widespread haze before 7pm. Mostly cloudy, with a low around 56. Northwest wind 6 to 9 mph becoming south in the evening.

Monday

Sunny, with a high near 90. West southwest wind 5 to 8 mph.

Monday Night

Mostly clear, with a low around 58. West wind 5 to 8 mph becoming east in the evening.

Tuesday

Sunny and hot, with a high near 96. Light and variable wind becoming west around 6 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 60. East wind 6 to 8 mph becoming south southwest after midnight.

Wednesday

Sunny, with a high near 94.