National Weather Service United States Department of Commerce

Rain, thunderstorms possible for parts of Texas and Gulf Coast; additional rain and mountain snow forecast out West

A developing storm system will bring rain and thunderstorms across parts of South Texas and the western Gulf Coast on Thursday. Some of the thunderstorms that develop late Thursday night into Friday have the potential to be severe. Meanwhile, additional rainfall and mountain snow is forecast for northern California and the Pacific Northwest.
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Current Conditions

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Helena MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Overnight

Partly Cloudy

Partly
Cloudy

Low: 26 °F

Friday

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

High: 37 °F

Friday
Night

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: 25 °F

Saturday

Partly Sunny

Partly
Sunny

High: 37 °F

Saturday
Night

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

Low: 32 °F

Sunday

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

High: 44 °F

Sunday
Night

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

Low: 38 °F

Monday

Chance Rain/Snow

Chance
Rain/Snow

High: 42 °F

Monday
Night

Slight Chance Snow

Slight Chc
Snow

Low: 29 °F

Detailed Forecast

  • Overnight Partly cloudy, with a steady temperature around 26. Light south southwest wind.
  • Friday A 30 percent chance of snow after 11am. Partly sunny, with a high near 37. Calm wind. New snow accumulation of less than a half inch possible.
  • Friday Night A 50 percent chance of snow before 11pm. Mostly cloudy, with a low around 25. Calm wind becoming west around 5 mph in the evening. New snow accumulation of less than a half inch possible.
  • Saturday Partly sunny, with a high near 37. West wind 3 to 6 mph.
  • Saturday Night A 40 percent chance of snow. Mostly cloudy, with a low around 32. Southwest wind 7 to 11 mph. New snow accumulation of less than one inch possible.
  • Sunday A chance of snow before 11am, then a chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
  • Sunday Night A chance of rain and snow. Mostly cloudy, with a low around 38. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
  • Monday A chance of rain and snow. Partly sunny, with a high near 42.
  • Monday Night A slight chance of snow. Mostly cloudy, with a low around 29.
  • Tuesday A slight chance of snow. Partly sunny, with a high near 36.
  • Tuesday Night A chance of snow. Mostly cloudy, with a low around 24.
  • Wednesday A chance of snow. Mostly cloudy, with a high near 33.
  • Wednesday Night A chance of snow. Mostly cloudy, with a low around 16.
  • Christmas Day A chance of snow. Mostly cloudy, with a high near 24.