Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

88°F

31°C

Humidity	14%
Wind Speed	WNW 6 MPH
Barometer	30.02 in (1016.59 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	19 Aug 05:20 PM MDT

More Information:

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

Extended Forecast for

6 Miles W Helena MT

Tonight
Low: 57 °F
Decreasing
Clouds
Thursday
High: 91 °F
Sunny
Thursday Night
Low: 61 °F
Partly Cloudy
Friday
High: 91 °F
Mostly Sunny
Friday Night
Low: 62 °F
Mostly Cloudy
Saturday
High: 86 °F
Partly Sunny
then Chance
T-storms
Saturday Night
Low: 58 °F
Slight Chance
T-storms then
Partly Cloudy
Sunday
High: 83 °F
Sunny then
Slight Chance
T-storms
Sunday Night
Low: 54 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West northwest wind 5 to 9 mph becoming light west southwest after midnight.

Thursday

Sunny, with a high near 91. Calm wind becoming west northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

Thursday Night

Partly cloudy, with a low around 61. North northwest wind around 5 mph becoming calm in the evening.

Friday

Mostly sunny, with a high near 91. Calm wind becoming northeast 5 to 8 mph in the afternoon.

Friday Night

Mostly cloudy, with a low around 62. Northeast wind 5 to 8 mph becoming calm after midnight.

Saturday

A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 86. Calm wind becoming southwest 5 to 8 mph in the afternoon.

Saturday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58. Southwest wind around 7 mph.

Sunday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. Southwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.

Sunday Night

Mostly clear, with a low around 54.

Monday

Sunny, with a high near 83.

Monday Night

Partly cloudy, with a low around 57.

Tuesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.

Tuesday Night

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 57.

Wednesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85.