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 >

Hazardous Weather Conditions

Current conditions at

Powell Municipal Airport (KPOY)

Lat: 44.8672°NLon: 108.7934°WElev: 5092.0ft.

Clear

82°F

28°C

Humidity	17%
Wind Speed	SSE 8 MPH
Barometer	30.07 in (1018.29 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	17 Aug 12:35 PM MDT

More Information:

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

Extended Forecast for

3 Miles SSW Ralston WY

This Afternoon
High: 83 °F
Chance
T-storms
Tonight
Low: 58 °F
Slight Chance
T-storms then
Partly Cloudy
Monday
High: 87 °F
Sunny
Monday Night
Low: 59 °F
Mostly Clear
Tuesday
High: 94 °F
Sunny
Tuesday Night
Low: 62 °F
Mostly Clear
Wednesday
High: 95 °F
Sunny
Wednesday Night
Low: 63 °F
Partly Cloudy
Thursday
High: 86 °F
Sunny

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph.

Tonight

A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 58. Southwest wind 5 to 11 mph becoming north northwest in the evening.

Monday

Sunny, with a high near 87. Light and variable wind becoming east southeast 5 to 10 mph in the morning.

Monday Night

Mostly clear, with a low around 59. East southeast wind around 7 mph becoming west northwest in the evening.

Tuesday

Sunny, with a high near 94. West southwest wind 5 to 9 mph becoming east southeast in the afternoon.

Tuesday Night

Mostly clear, with a low around 62. East southeast wind 6 to 9 mph becoming west southwest in the evening.

Wednesday

Sunny, with a high near 95. Southwest wind 6 to 9 mph becoming east southeast in the morning.

Wednesday Night

Partly cloudy, with a low around 63.