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

Sioux Pass MT-16 MP 21 (MTSOO)

Lat: 47.91973°NLon: 104.32619°WElev: 2480.0ft.

81°F

27°C

Humidity	55%
Wind Speed	ESE 4 MPH
Barometer	NA
Dewpoint	63°F (17°C)
Visibility	NA
Heat Index	82°F (28°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

14 Miles SSW Culbertson MT

Tonight
Low: 62 °F
Slight Chance
T-storms
Monday
High: 90 °F
Slight Chance
Showers then
Mostly Sunny
Monday Night
Low: 63 °F
Mostly Clear
Tuesday
High: 96 °F
Hot
Tuesday Night
Low: 69 °F
Mostly Clear
Wednesday
High: 100 °F
Hot
Wednesday Night
Low: 64 °F
Mostly Clear
then Slight
Chance
T-storms
Thursday
High: 81 °F
Mostly Sunny
Thursday Night
Low: 53 °F
Mostly Clear

Detailed Forecast

Tonight

A slight chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 62. North northeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.

Monday

A 20 percent chance of showers before 9am. Mostly sunny, with a high near 90. Calm wind becoming west around 6 mph in the afternoon.

Monday Night

Mostly clear, with a low around 63. North northwest wind 5 to 7 mph becoming southeast after midnight.

Tuesday

Sunny and hot, with a high near 96. Southeast wind 5 to 10 mph.

Tuesday Night

Mostly clear, with a low around 69. Southeast wind around 10 mph.

Wednesday

Sunny and hot, with a high near 100. South southeast wind 8 to 13 mph, with gusts as high as 20 mph.

Wednesday Night

A 20 percent chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 64. Southwest wind 7 to 10 mph becoming north after midnight.

Thursday

Mostly sunny, with a high near 81. North northwest wind 7 to 13 mph, with gusts as high as 20 mph.

Thursday Night

Mostly clear, with a low around 53. North wind 6 to 11 mph.

Friday

Sunny, with a high near 77. West northwest wind 6 to 11 mph, with gusts as high as 20 mph.

Friday Night

Mostly clear, with a low around 48. North wind 5 to 11 mph, with gusts as high as 18 mph.

Saturday

Sunny, with a high near 74.

Saturday Night

Mostly clear, with a low around 47.