Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

TOSTON (TOSM)

Lat: 46.12222°NLon: 111.49472°WElev: 4058.0ft.

51°F

11°C

Humidity	91%
Wind Speed	SSW 2 MPH
Barometer	NA
Dewpoint	49°F (9°C)
Visibility	NA
Last update	17 Aug 03:00 AM MDT

More Information:

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

Extended Forecast for

2 Miles SSE Toston MT

Today
High: 81 °F
Partly Sunny
then Showers
Likely
Tonight
Low: 53 °F
Chance
T-storms then
Haze
Monday
High: 87 °F
Mostly Sunny
then Chance
Showers
Monday Night
Low: 55 °F
Haze
Tuesday
High: 93 °F
Sunny
Tuesday Night
Low: 56 °F
Mostly Clear
Wednesday
High: 90 °F
Sunny
Wednesday Night
Low: 55 °F
Partly Cloudy
Thursday
High: 84 °F
Sunny

Detailed Forecast

Today

A chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 81. Light and variable wind becoming north 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

Tonight

A 40 percent chance of showers and thunderstorms before 8pm. Widespread haze between 1am and 3am. Mostly cloudy, with a low around 53. Southeast wind 8 to 13 mph becoming light east southeast.

Monday

A 30 percent chance of showers after noon. Mostly sunny, with a high near 87. Southeast wind 5 to 8 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

Monday Night

Widespread haze before 1am. Partly cloudy, with a low around 55. Northwest wind 5 to 8 mph becoming east southeast after midnight.

Tuesday

Sunny, with a high near 93. Southeast wind around 6 mph becoming southwest in the afternoon.

Tuesday Night

Mostly clear, with a low around 56. South wind 6 to 8 mph becoming northeast after midnight.

Wednesday

Sunny, with a high near 90. South southeast wind 5 to 8 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.

Wednesday Night

Partly cloudy, with a low around 55. North wind 6 to 13 mph, with gusts as high as 23 mph.

Thursday

Sunny, with a high near 84.