Monsoon Flood Threat and Heat Building Out West

The monsoon threat with heavy rain and thunderstorms continues across a large portion of the West. Flash flood watches are in effect from New Mexico to Montana and Idaho and debris flows remain possible near vulnerable burn scars. Also out West, excessive heat watches are in effect and start Tuesday across the Interior Northwest and parts of the Southwest into the desert of southern California. Read More >

Hazardous Weather Conditions

En Español

Current conditions at

Arco (ARC)

Lat: 43.62455°NLon: 113.2971°WElev: 5290ft.

26°C

78°F

Humidity	50%
Wind Speed	WSW 17 MPH
Barometer	NA
Dewpoint	14°C (58°F)
Visibility	NA
Heat Index	26°C (79°F)
Last update	02 Aug 02:10 PM MDT

More Information:

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

Extended Forecast for

7 Miles NNE Mackay ID

Flash Flood Watch until August 2, 09:00pm

Flood Advisory until August 2, 03:00pm

Click here for hazard details and duration

Flash Flood Watch

Flood Advisory

Flash Flood Watch until August 2, 09:00pm
Flood Advisory until August 2, 03:00pm

NOW: Multiple
hazards in effect

Click HERE for Details
This
Afternoon

Heavy Rain
High: 13 °C
Tonight

Heavy Rain
then Haze
Low: 7 °C
Tuesday

Haze
High: 17 °C
Tuesday
Night

Haze
Low: 9 °C
Wednesday

Sunny then
Heavy Rain
High: 18 °C
Wednesday
Night

Heavy Rain
then Slight
Chance
Showers
Low: 11 °C
Thursday

Chance
Showers then
Showers
Likely
High: 18 °C
Thursday
Night

Chance
Showers
Low: 7 °C

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. Some of the storms could produce heavy rain. Widespread haze after 5pm. High near 13. West wind 13 to 18 km/h becoming north northwest. Winds could gust as high as 32 km/h. Chance of precipitation is 90%.

Tonight

A 20 percent chance of showers and thunderstorms before 8pm. Some of the storms could produce heavy rain. Widespread haze before 9pm, then widespread haze after 11pm. Cloudy during the early evening, then gradual clearing, with a low around 7. North wind 16 to 21 km/h, with gusts as high as 34 km/h.

Tuesday

Widespread haze. Sunny, with a high near 17. North northwest wind 11 to 18 km/h.

Tuesday Night

Widespread haze before 11pm, then widespread haze after midnight. Mostly clear, with a low around 9. North wind around 14 km/h.

Wednesday

A 20 percent chance of showers and thunderstorms after noon. Some of the storms could produce heavy rain. Sunny, with a high near 18. West northwest wind 10 to 16 km/h becoming south in the morning.

Wednesday Night

A slight chance of showers and thunderstorms. Some of the storms could produce heavy rain. Partly cloudy, with a low around 11. Chance of precipitation is 20%.

Thursday

A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 18. Chance of precipitation is 60%.

Thursday Night

A 50 percent chance of showers. Mostly cloudy, with a low around 7.

Friday

A 40 percent chance of showers. Partly sunny, with a high near 13.

Friday Night

Mostly clear, with a low around 6.

Saturday

Sunny, with a high near 13.

Saturday Night

Mostly clear, with a low around 4.