Active Weather Pattern Expected From the Midwest to the Southern Plains; Dangerous Heat Likely in Southern Texas

A strong storm system will bring numerous to widespread severe thunderstorms across portions of the Midwest and Upper Great Lakes Tuesday. Tornadoes (a few strong), damaging winds and large hail are expected. Record high temperatures will be possible over southern Texas the next several days. This may lead to dangerous heat concerns especially for areas already without power. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Partly Cloudy

59°F

15°C

Humidity	33%
Wind Speed	WNW 5 MPH
Barometer	29.91 in (1012.87 mb)
Dewpoint	30°F (-1°C)
Visibility	10.00 mi
Last update	21 May 04:35 PM MDT

More Information:

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

Extended Forecast for

Helena MT

This Afternoon
High: 63 °F
Slight Chance
Rain
Tonight
Low: 45 °F
Mostly Cloudy
then Slight
Chance Rain
Wednesday
High: 58 °F
Chance Rain
then Showers
Wednesday Night
Low: 35 °F
Rain/Snow
Thursday
High: 46 °F
Rain/Snow
then Showers
Likely
Thursday Night
Low: 35 °F
Slight Chance
Rain then
Partly Cloudy
Friday
High: 62 °F
Partly Sunny
then Chance
Showers
Friday Night
Low: 42 °F
Slight Chance
Rain then
Mostly Cloudy
Saturday
High: 63 °F
Showers
Likely

Detailed Forecast

This Afternoon

A 20 percent chance of rain. Partly sunny, with a high near 63. West wind around 11 mph, with gusts as high as 23 mph.

Tonight

A 20 percent chance of rain after 5am. Mostly cloudy, with a low around 45. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.

Wednesday

A chance of rain and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 58. Light and variable wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Rain and snow showers, becoming all snow after 3am. Some thunder is also possible. Low around 35. Northwest wind 8 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Thursday

Rain, possibly mixed with snow before noon, then rain showers likely. Some thunder is also possible. High near 46. North northwest wind 9 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Thursday Night

A 20 percent chance of rain before midnight. Partly cloudy, with a low around 35. Northwest wind around 6 mph becoming southwest after midnight.

Friday

A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 62. South southwest wind 6 to 9 mph, with gusts as high as 20 mph.

Friday Night

A slight chance of rain before midnight. Mostly cloudy, with a low around 42. South southwest wind 5 to 9 mph, with gusts as high as 20 mph.

Saturday

A slight chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 63.

Saturday Night

A chance of showers and thunderstorms before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 42.

Sunday

A chance of rain. Partly sunny, with a high near 61.

Sunday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 41.

Memorial Day

Mostly sunny, with a high near 71.