Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Heat Advisory until July 26, 09:00 PM MDT

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

63°F

17°C

Humidity	63%
Wind Speed	NNW 6 MPH
Barometer	29.97 in (1014.9 mb)
Dewpoint	50°F (10°C)
Visibility	10.00 mi
Last update	25 Jul 05:20 AM MDT

More Information:

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

Extended Forecast for

Helena MTSimilar City Names

Heat Advisory July 25, 05:37am until July 26, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 25, 05:37am until July 26, 09:00pm
NOW until 9:00pm Sun
Heat Advisory
Today
High: 99 °F
Patchy Smoke
then Chance
Showers
Tonight
Low: 64 °F
Chance
Showers then
Patchy Smoke
Sunday
High: 95 °F
Sunny
Sunday Night
Low: 63 °F
Mostly Clear
Monday
High: 93 °F
Sunny
Monday Night
Low: 62 °F
Mostly Clear
Tuesday
High: 95 °F
Sunny
Tuesday Night
Low: 63 °F
Mostly Clear

Detailed Forecast

Today

A 40 percent chance of showers and thunderstorms after 3pm. Patchy smoke before 10am. Increasing clouds and hot, with a high near 99. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 24 mph.

Tonight

A 30 percent chance of showers and thunderstorms before 7pm. Patchy smoke after midnight. Partly cloudy, with a low around 64. South southeast wind 6 to 8 mph becoming northwest in the evening. Winds could gust as high as 20 mph.

Sunday

Sunny, with a high near 95. Calm wind becoming north 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

Sunday Night

Mostly clear, with a low around 63. West wind 5 to 7 mph.

Monday

Sunny, with a high near 93. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

Monday Night

Mostly clear, with a low around 62. West wind 6 to 8 mph.

Tuesday

Sunny, with a high near 95. Calm wind becoming northeast 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

Tuesday Night

Mostly clear, with a low around 63. East northeast wind 5 to 7 mph becoming west after midnight.