Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

SIARD (SIAN2)

Lat: 40.39433°NLon: 117.62567°WElev: 4600.0ft.

NA

84°F

29°C

Humidity 8%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility NA
Heat Index81°F (27°C)
Last update 04 Aug 11:38 AM PDT
Extended Forecast for

29 Miles ESE Unionville NV

Heat Advisory August 5, 08:00am until August 9, 08:00am
Click here for hazard details and duration
Heat Advisory
  • This Afternoon

    This Afternoon: Widespread haze. Patchy smoke. Sunny, with a high near 88. Northwest wind 5 to 10 mph.

    High: 88 °F

    Haze

  • Tonight

    Tonight: Widespread haze. Patchy smoke. Mostly clear, with a low around 64. North wind around 10 mph becoming northeast after midnight.

    Low: 64 °F

    Haze

  • Wednesday

    Wednesday: Widespread haze before 3pm. Patchy smoke before 4pm. Sunny, with a high near 92. Northeast wind around 10 mph becoming southwest in the morning.

    High: 92 °F

    Haze

  • Wednesday Night

    Wednesday Night: Patchy smoke between 9pm and 1am. Mostly clear, with a low around 66. West wind 5 to 10 mph becoming east after midnight.

    Low: 66 °F

    Patchy Smoke

  • Thursday

    Thursday: Sunny, with a high near 95. Southwest wind 5 to 10 mph.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68. West wind 5 to 10 mph becoming north in the evening.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

Detailed Forecast

This Afternoon
Widespread haze. Patchy smoke. Sunny, with a high near 88. Northwest wind 5 to 10 mph.
Tonight
Widespread haze. Patchy smoke. Mostly clear, with a low around 64. North wind around 10 mph becoming northeast after midnight.
Wednesday
Widespread haze before 3pm. Patchy smoke before 4pm. Sunny, with a high near 92. Northeast wind around 10 mph becoming southwest in the morning.
Wednesday Night
Patchy smoke between 9pm and 1am. Mostly clear, with a low around 66. West wind 5 to 10 mph becoming east after midnight.
Thursday
Sunny, with a high near 95. Southwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 68. West wind 5 to 10 mph becoming north in the evening.
Friday
Sunny, with a high near 96.
Friday Night
Mostly clear, with a low around 69.
Saturday
Sunny, with a high near 95.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 92.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
29 Miles ESE Unionville NV
 40.27°N 117.62°W (Elev. 6178 ft)
11:30 am PDT Aug 4, 2026
12pm PDT Aug 4, 2026-6pm PDT Aug 10, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database