National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Ontario Municipal Airport (KONO)

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

Partly Cloudy

66°F

19°C

Humidity 68%
Wind Speed WSW 5 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Aug 08:35 AM MDT
Extended Forecast for

Payette ID

Flash Flood Watch August 17, 03:00pm until August 18, 12:00am
Click here for hazard details and duration
Flash Flood Watch

  • Today

    Today: Isolated showers and thunderstorms before noon. Mostly cloudy, then gradually becoming sunny, with a high near 89. Calm wind. Chance of precipitation is 20%.

    High: 89 °F

    Isolated
    T-storms then
    Sunny

  • Tonight

    Tonight: Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 94. Calm wind becoming north around 5 mph in the afternoon.

    High: 94 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. Calm wind becoming north northwest 5 to 7 mph.

    Low: 64 °F

    Mostly Clear

  • Tuesday

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

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

Detailed Forecast

Today
Isolated showers and thunderstorms before noon. Mostly cloudy, then gradually becoming sunny, with a high near 89. Calm wind. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 62. Calm wind.
Monday
Sunny and hot, with a high near 94. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 64. Calm wind becoming north northwest 5 to 7 mph.
Tuesday
Sunny and hot, with a high near 98. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny and hot, with a high near 95.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Payette ID
 44.08°N 116.92°W (Elev. 2165 ft)
Last Update:
8:04 am MDT Aug 17, 2025
Forecast Valid:
8am MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation