Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Clear

72°F

22°C

Humidity	43%
Wind Speed	WSW 11 MPH
Barometer	29.93 in (1013.55 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	14 Aug 10:35 PM MDT

More Information:

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

Extended Forecast for

3 Miles W Helena MT

Tonight
Low: 57 °F
Mostly Clear
Friday
High: 90 °F
Sunny then
Haze
Friday Night
Low: 60 °F
Mostly Clear
Saturday
High: 91 °F
Sunny
Saturday Night
Low: 59 °F
Slight Chance
T-storms then
Mostly Cloudy
Sunday
High: 86 °F
Mostly Sunny
then Chance
T-storms
Sunday Night
Low: 57 °F
Chance
T-storms then
Partly Cloudy
Monday
High: 88 °F
Sunny
Monday Night
Low: 60 °F
Partly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 57. West southwest wind 3 to 6 mph.

Friday

Widespread haze between 2pm and 4pm. Sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

Friday Night

Mostly clear, with a low around 60. West northwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.

Saturday

Sunny, with a high near 91. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

Saturday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59. West northwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.

Sunday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

Sunday Night

A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 57. South southwest wind 6 to 9 mph.

Monday

Sunny, with a high near 88. Light and variable wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

Monday Night

Partly cloudy, with a low around 60.

Tuesday

Sunny, with a high near 94.

Tuesday Night

Mostly clear, with a low around 62.

Wednesday

Sunny, with a high near 91.