Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

Lat: 44.01424°NLon: 117.00808°WElev: 2185.0ft.

Clear

66°F

19°C

Humidity 37%
Wind Speed S 3 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 19 Aug 05:20 AM MDT
Extended Forecast for

7 Miles ESE New Plymouth ID

Heat Advisory August 20, 12:00pm until August 21, 09:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Patchy smoke before 7am. Sunny and hot, with a high near 96. West northwest wind around 6 mph becoming calm  in the morning.

    High: 96 °F

    Patchy Smoke
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. North wind around 6 mph becoming light and variable  after midnight.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64. North northwest wind around 6 mph becoming light and variable  after midnight.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny and hot, with a high near 101. Calm wind becoming west around 5 mph in the afternoon.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 94.

    High: 94 °F

    Hot

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight.  Partly cloudy, with a low around 61.

    Low: 61 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 90.

    High: 90 °F

    Hot

Detailed Forecast

Today
Patchy smoke before 7am. Sunny and hot, with a high near 96. West northwest wind around 6 mph becoming calm in the morning.
Tonight
Mostly clear, with a low around 60. North wind around 6 mph becoming light and variable after midnight.
Thursday
Sunny and hot, with a high near 99. Light and variable wind becoming west around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 64. North northwest wind around 6 mph becoming light and variable after midnight.
Friday
Partly sunny and hot, with a high near 101. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 66.
Saturday
Mostly sunny and hot, with a high near 94.
Saturday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 61.
Sunday
Sunny and hot, with a high near 90.
Sunday Night
Mostly clear, with a low around 59.
Monday
Mostly sunny and hot, with a high near 92.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Mostly sunny and hot, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ESE New Plymouth ID
 43.91°N 116.7°W (Elev. 2300 ft)
3:53 am MDT Aug 19, 2026
5am MDT Aug 19, 2026-6pm MDT Aug 25, 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