Moke Impacts Hawaii; Severe Thunderstorms and Heavy Rainfall from the Great Basin to the Plains

Heavy rain from Tropical Storm Moke will begin to impact the Big Island today, risking life-threatening flooding and mudslides in windward and southeast areas. Severe thunderstorms are expected across the northern Rockies/Plains and northern Great Basin. Repeated storms and heavy rainfall may cause flash flooding from the Plains into the Lower MS Valley. Dangerous heat persists across the South. Read More >

Hazardous Weather Conditions

Severe Thunderstorm Watch in effect from August 23, 01:55 PM MDT until August 23, 07:00 PM MDT

Current conditions at

MAIN BOULDER (MBRM8)

Lat: 45.45813°NLon: 110.19768°WElev: 5405.0ft.

87°F

31°C

Humidity	21%
Wind Speed	SSE 6 MPH
Barometer	NA
Dewpoint	42°F (6°C)
Visibility	NA
Heat Index	84°F (29°C)
Last update	23 Aug 02:39 PM MDT

More Information:

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

Extended Forecast for

8 Miles N Cooke City MT

Severe T-storm Watch until August 23, 07:00pm

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch until August 23, 07:00pm
NOW until 7:00pm Sun
Severe T-storm Watch
This Afternoon
High: 60 °F
Severe
Thunderstorms
Tonight
Low: 41 °F
Severe
Thunderstorms
then Mostly
Clear
Monday
High: 60 °F
Mostly Sunny
Monday Night
Low: 42 °F
Mostly Cloudy
Tuesday
High: 59 °F
Mostly Sunny
then Showers
Likely
Tuesday Night
Low: 42 °F
Slight Chance
T-storms then
Partly Cloudy
Wednesday
High: 61 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 43 °F
Slight Chance
T-storms then
Mostly Cloudy

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 60. West southwest wind around 23 mph.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 9pm. Some of the storms could be severe. Mostly cloudy, then gradually becoming mostly clear, with a low around 41. Southwest wind 17 to 22 mph decreasing to 8 to 13 mph after midnight.

Monday

Mostly sunny, with a high near 60. Southwest wind 8 to 16 mph.

Monday Night

Mostly cloudy, with a low around 42. West northwest wind 5 to 9 mph becoming south southeast after midnight.

Tuesday

Showers likely and possibly a thunderstorm after noon. Sunny through mid morning, then becoming mostly cloudy, with a high near 59. South wind 5 to 8 mph becoming west northwest in the afternoon. Chance of precipitation is 60%.

Tuesday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 42. North northwest wind around 6 mph becoming south after midnight. Chance of precipitation is 20%.

Wednesday

A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 61. South southwest wind 5 to 9 mph becoming west in the afternoon.

Wednesday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43. West northwest wind around 7 mph becoming south in the evening.

Thursday

A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 61. West southwest wind 7 to 14 mph.

Thursday Night

A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 44. South wind 8 to 11 mph.

Friday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 60. South southwest wind 7 to 17 mph.

Friday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 42. West wind 9 to 17 mph becoming south after midnight.

Saturday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 57. West southwest wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon.

Saturday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 40. South wind 16 to 21 mph decreasing to 9 to 14 mph after midnight.

Sunday

Mostly sunny, with a high near 55. South southwest wind 8 to 18 mph.