Forecast Details for Helmville, MT

Recent Locations: Grand Island, NY Bradley Beach, NJ Helmville, MT

Tonight: Areas of smoke before 2am, then areas of smoke after 3am. Mostly cloudy, with a low around 52. East northeast wind 3 to 8 mph.

Wednesday: A 30 percent chance of rain after noon. Areas of smoke before 9am. Mostly cloudy, with a high near 83. Light east wind increasing to 5 to 10 mph in the afternoon.

Wednesday Night: A 30 percent chance of rain. Areas of smoke between 8pm and 9pm. Cloudy, with a low around 50. East southeast wind 5 to 9 mph becoming calm after midnight.

Thursday: A chance of rain before 3pm, then a chance of showers and thunderstorms after 3pm. Cloudy, with a high near 71. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night: A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight. Mostly cloudy, with a low around 47. West northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday: A slight chance of rain, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 75. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night: Mostly cloudy, with a low around 44.

Saturday: Mostly sunny, with a high near 81.

Saturday Night: Mostly clear, with a low around 45.

Sunday: Sunny, with a high near 84.

Sunday Night: Partly cloudy, with a low around 45.

Labor Day: Sunny, with a high near 83.

Monday Night: Partly cloudy, with a low around 45.

Tuesday: A slight chance of rain. Mostly sunny, with a high near 79.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds

Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation