Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northwestern Gulf Coast from south central Louisiana to the upper Texas coast today. Read More >

Hazardous Weather Conditions

Heat Advisory in effect from July 24, 12:00 PM MDT until July 26, 09:00 PM MDT

Current conditions at

TOSTON (TOSM)

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

77°F

25°C

Humidity	55%
Wind Speed	S 4 MPH
Barometer	NA
Dewpoint	60°F (16°C)
Visibility	NA
Heat Index	79°F (26°C)
Last update	23 Jul 12:00 PM MDT

More Information:

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

Extended Forecast for

5 Miles SW Radersburg MT

Heat Advisory July 24, 12:00pm until July 26, 09:00pm

Click here for hazard details and duration

Heat Advisory

This Afternoon
High: 87 °F
Slight Chance
T-storms
Tonight
Low: 63 °F
Slight Chance
T-storms then
Patchy Smoke
Friday
High: 92 °F
Patchy Smoke
then Slight
Chance
T-storms
Friday Night
Low: 63 °F
Slight Chance
T-storms then
Mostly Clear
Saturday
High: 94 °F
Sunny then
Chance
T-storms
Saturday Night
Low: 62 °F
Mostly Clear
Sunday
High: 93 °F
Sunny
Sunday Night
Low: 61 °F
Mostly Clear
Monday
High: 88 °F
Sunny

Detailed Forecast

This Afternoon

A 20 percent chance of showers and thunderstorms. Patchy smoke. Mostly sunny, with a high near 87. South wind around 6 mph becoming northeast.

Tonight

A 20 percent chance of showers and thunderstorms before midnight. Patchy smoke before 3am. Partly cloudy, with a low around 63. Northeast wind around 6 mph becoming light and variable.

Friday

A slight chance of showers between 2pm and 3pm, then a slight chance of showers and thunderstorms after 3pm. Patchy smoke between 7am and noon. Sunny, with a high near 92. West wind 5 to 14 mph becoming south in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 20%.

Friday Night

A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 63. West wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.

Saturday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 94. Light southwest wind increasing to 16 to 21 mph in the morning. Winds could gust as high as 33 mph.

Saturday Night

Mostly clear, with a low around 62. South southwest wind 13 to 18 mph becoming west 6 to 11 mph after midnight. Winds could gust as high as 31 mph.

Sunday

Sunny, with a high near 93. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.

Sunday Night

Mostly clear, with a low around 61. West southwest wind 6 to 10 mph becoming north in the evening. Winds could gust as high as 23 mph.

Monday

Sunny, with a high near 88.

Monday Night

Mostly clear, with a low around 61.

Tuesday

Sunny, with a high near 89.