Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Loma US-87 MP 53.1 (MTLOM)

Lat: 47.95103°NLon: 110.50477°WElev: 2700.0ft.

79°F

26°C

Humidity	36%
Wind Speed	ENE 2 MPH
Barometer	NA
Dewpoint	50°F (10°C)
Visibility	NA
Heat Index	79°F (26°C)
Last update	17 Aug 04:15 PM MDT

More Information:

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

Extended Forecast for

11 Miles WSW Big Sandy MT

Tonight
Low: 57 °F
Chance
Showers then
Mostly Clear
Monday
High: 89 °F
Sunny then
Slight Chance
Showers
Monday Night
Low: 61 °F
Mostly Clear
Tuesday
High: 95 °F
Sunny
Tuesday Night
Low: 62 °F
Partly Cloudy
Wednesday
High: 93 °F
Sunny
Wednesday Night
Low: 58 °F
Partly Cloudy
Thursday
High: 81 °F
Sunny
Thursday Night
Low: 54 °F
Mostly Clear

Detailed Forecast

Tonight

A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%.

Monday

A 20 percent chance of showers after 5pm. Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.

Monday Night

Mostly clear, with a low around 61. South southeast wind around 5 mph becoming light and variable after midnight.

Tuesday

Sunny, with a high near 95. Light and variable wind.

Tuesday Night

Partly cloudy, with a low around 62. East wind around 6 mph becoming north after midnight.

Wednesday

Sunny, with a high near 93. West wind around 6 mph.

Wednesday Night

Partly cloudy, with a low around 58. West northwest wind around 8 mph.