Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

TOSTON (TOSM)

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

77°F

25°C

Humidity	39%
Wind Speed	NNW 3 MPH
Barometer	NA
Dewpoint	50°F (10°C)
Visibility	NA
Heat Index	78°F (26°C)
Last update	15 Aug 04:00 PM MDT

More Information:

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

Extended Forecast for

4 Miles SSE Toston MT

This Afternoon
High: 77 °F
Slight Chance
T-storms
Tonight
Low: 50 °F
Showers
Likely then
Chance
Showers and
Patchy Fog
Sunday
High: 80 °F
Patchy Fog
then Chance
Showers
Sunday Night
Low: 52 °F
Chance
Showers then
Mostly Cloudy
Monday
High: 80 °F
Partly Sunny
Monday Night
Low: 53 °F
Showers
Likely
Tuesday
High: 77 °F
Chance
T-storms
Tuesday Night
Low: 50 °F
Slight Chance
T-storms then
Mostly Cloudy
Wednesday
High: 80 °F
Mostly Sunny

Detailed Forecast

This Afternoon

A 20 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 77. North northwest wind 3 to 5 mph.

Tonight

Showers and thunderstorms likely before midnight, then a chance of showers between midnight and 1am. Patchy fog after 3am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 50. Northwest wind around 6 mph becoming east southeast in the evening. Chance of precipitation is 60%.

Sunday

A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 80. South southeast wind around 6 mph becoming north in the afternoon.

Sunday Night

A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 52. North northeast wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 30%.

Monday

Partly sunny, with a high near 80. Light and variable wind becoming west around 6 mph in the afternoon.

Monday Night

Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 53. North northwest wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 60%.

Tuesday

A 40 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 77. Light and variable wind becoming north northwest 5 to 7 mph in the morning. Winds could gust as high as 18 mph.

Tuesday Night

A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50. Northwest wind 5 to 7 mph becoming light and variable in the evening.

Wednesday

Mostly sunny, with a high near 80.

Wednesday Night

Partly cloudy, with a low around 51.

Thursday

Sunny, with a high near 82.

Thursday Night

Partly cloudy, with a low around 53.

Friday

Sunny, with a high near 87.

Friday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55.