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

91°F

33°C

Humidity 16%
Wind Speed SSE 3 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 19 Aug 02:00 PM MDT
Extended Forecast for

13 Miles ENE New Plymouth ID

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

    This Afternoon: Sunny and hot, with a high near 96. Calm wind.

    High: 96 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 66. Calm wind becoming north northeast around 5 mph.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Light and variable wind.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 67. Calm wind.

    Low: 67 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny and hot, with a high near 99. Calm wind.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight.  Partly cloudy, with a low around 63.

    Low: 63 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 96. Calm wind.
Tonight
Mostly clear, with a low around 66. Calm wind becoming north northeast around 5 mph.
Thursday
Sunny and hot, with a high near 98. Light and variable wind.
Thursday Night
Increasing clouds, with a low around 67. Calm wind.
Friday
Partly sunny and hot, with a high near 99. Calm wind.
Friday Night
Mostly cloudy, with a low around 70.
Saturday
Partly sunny and hot, with a high near 95.
Saturday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 63.
Sunday
Sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny and hot, with a high near 91.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny and hot, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ENE New Plymouth ID
 44.06°N 116.58°W (Elev. 2487 ft)
12:32 pm MDT Aug 19, 2026
2pm 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