Forecast Details for Potomac, MT

Recent Locations: Euless, TX Avon, IL Potomac, MT

Current Alerts for Potomac, MT: Air Quality Alert

Overnight: Mostly clear, with a low around 42. Calm wind.

Saturday: Patchy smoke after 1pm. Sunny, with a high near 90. Calm wind.

Saturday Night: Areas of smoke. Mostly cloudy, with a low around 48. Calm wind.

Sunday: A slight chance of rain between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Areas of smoke before 7am. Partly sunny, with a high near 87. Light and variable wind. Chance of precipitation is 20%.

Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and midnight. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 45. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

Monday: A 20 percent chance of rain after noon. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 85.

Monday Night: A 30 percent chance of rain after midnight. Partly cloudy, with a low around 45.

Tuesday: A slight chance of rain, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 80.

Tuesday Night: A chance of showers and thunderstorms before midnight, then a chance of rain after midnight. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 43.

Wednesday: A chance of rain, then showers likely and possibly a thunderstorm after noon. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 75.

Wednesday Night: A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 41.

Thursday: A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 74.

Thursday Night: A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 42.

Friday: A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 73.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

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 is Evaporation?

Home - Education - Precipitation - Evaporation

Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog

Weather Topic: What are Fractus Clouds?

Home - Education - Cloud Types - Fractus Clouds

Fractus Clouds Next Topic: Freezing Rain

A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud. They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.

Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud, or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.

They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.

Next Topic: Freezing Rain