Heavy Rain in the Southern Appalachians; Heat Continues in the West; Monitoring Tropical Storm Erin

Heavy to excessive rain falling over the southern Appalachians may bring areas of flooding into Wednesday. Hot temperatures are in place through Wednesday across parts of the western U.S. and New England. Tropical Storm Erin is forecast to become a Hurricane by late this week as it moves westward across the central Atlantic Ocean. Monitor forecasts for any Puerto Rico or U.S. East Coast impacts. Read More >

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

Lat: 48.74111°NLon: 113.43306°WElev: 4550.0ft.

59°F

15°C

Humidity	66%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Last update	12 Aug 11:10 PM MDT

More Information:

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

Extended Forecast for

St Mary MT

Overnight
Low: 59 °F
Mostly Clear
Wednesday
High: 81 °F
Sunny then
Sunny and
Breezy
Wednesday Night
Low: 50 °F
Mostly Clear
then Slight
Chance
Showers
Thursday
High: 70 °F
Mostly Cloudy
Thursday Night
Low: 49 °F
Mostly Cloudy
Friday
High: 69 °F
Mostly Cloudy
Friday Night
Low: 54 °F
Slight Chance
Showers
Saturday
High: 70 °F
Slight Chance
Showers
Saturday Night
Low: 51 °F
Partly Cloudy

Detailed Forecast

Overnight

Mostly clear, with a low around 59. Southwest wind around 9 mph.

Wednesday

Sunny, with a high near 81. Breezy, with a southwest wind 10 to 15 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.

Wednesday Night

A 20 percent chance of showers after midnight. Partly cloudy, with a low around 50. West southwest wind 16 to 21 mph becoming northeast 7 to 12 mph after midnight. Winds could gust as high as 29 mph.

Thursday

Mostly cloudy, with a high near 70. North northeast wind 7 to 9 mph becoming west southwest in the afternoon.

Thursday Night

Mostly cloudy, with a low around 49. West wind 5 to 8 mph becoming calm in the evening.

Friday

Mostly cloudy, with a high near 69. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 23 mph.

Friday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 54. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.

Saturday

A slight chance of showers. Partly sunny, with a high near 70. West southwest wind 8 to 14 mph, with gusts as high as 28 mph.

Saturday Night

Partly cloudy, with a low around 51.