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

Ririe (ITD18)

Lat: 43.6111°NLon: 111.70531°WElev: 5106.0ft.

NA

66°F

19°C

Humidity 50%
Wind Speed ESE 15 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility 1.24 mi
Last update 18 Aug 11:15 PM MDT
Extended Forecast for

13 Miles SSW Irwin ID

  • Tonight

    Tonight: Mostly clear, with a low around 52. Southeast wind 7 to 9 mph becoming east northeast after midnight.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. Northeast wind 5 to 11 mph becoming west in the morning. Winds could gust as high as 18 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. Northwest wind 7 to 11 mph becoming east southeast after midnight.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. East southeast wind 7 to 10 mph becoming west southwest in the afternoon.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. West wind 8 to 11 mph becoming east in the evening.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain after midnight.  Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A chance of rain, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 70. Chance of precipitation is 60%.

    High: 70 °F

    Chance Rain
    then Showers
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Southeast wind 7 to 9 mph becoming east northeast after midnight.
Wednesday
Sunny, with a high near 72. Northeast wind 5 to 11 mph becoming west in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 54. Northwest wind 7 to 11 mph becoming east southeast after midnight.
Thursday
Sunny, with a high near 77. East southeast wind 7 to 10 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 58. West wind 8 to 11 mph becoming east in the evening.
Friday
Mostly sunny, with a high near 79.
Friday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 59.
Saturday
A chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56.
Sunday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 68.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 69.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Tuesday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles SSW Irwin ID
 43.22°N 111.33°W (Elev. 7940 ft)
11:31 pm MDT Aug 18, 2026
11pm MDT Aug 18, 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