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

HELENA (HRWM8)

Lat: 46.73167°NLon: 112.01917°WElev: 3800.0ft.

67°F

19°C

Humidity	42%
Wind Speed	S 2 MPH
Barometer	NA
Dewpoint	43°F (6°C)
Visibility	NA
Last update	15 Aug 11:53 PM MDT

More Information:

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

Extended Forecast for

6 Miles SE Canyon Creek MT

Overnight
Low: 56 °F
Haze
Saturday
High: 88 °F
Haze then
Slight Chance
T-storms
Saturday Night
Low: 55 °F
Chance
T-storms then
Haze
Sunday
High: 84 °F
Haze then
Chance
T-storms
Sunday Night
Low: 53 °F
Slight Chance
T-storms then
Partly Cloudy
Monday
High: 86 °F
Mostly Sunny
Monday Night
Low: 56 °F
Mostly Clear
Tuesday
High: 93 °F
Sunny
Tuesday Night
Low: 57 °F
Partly Cloudy

Detailed Forecast

Overnight

Widespread haze. Mostly clear, with a low around 56. Northwest wind 3 to 5 mph.

Saturday

A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Widespread haze between 9am and 3pm. Areas of smoke after 3pm. Sunny, with a high near 88. Light and variable wind becoming west southwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 20%.

Saturday Night

A 30 percent chance of showers and thunderstorms, mainly before 8pm. Widespread haze after midnight. Areas of smoke before midnight. Mostly cloudy, with a low around 55. Northwest wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 22 mph.

Sunday

A 30 percent chance of showers and thunderstorms after noon. Widespread haze before 3pm. Areas of smoke after 3pm. Mostly sunny, with a high near 84. Light west northwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

Sunday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Areas of smoke before 7pm. Mostly cloudy, with a low around 53. South southwest wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 20%.

Monday

Mostly sunny, with a high near 86. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

Monday Night

Mostly clear, with a low around 56. West wind 5 to 8 mph becoming calm after midnight.

Tuesday

Sunny, with a high near 93. Calm wind becoming south southeast 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

Tuesday Night

Partly cloudy, with a low around 57.

Wednesday

Sunny, with a high near 91.

Wednesday Night

Mostly clear, with a low around 55.