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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

75°F

24°C

Humidity 38%
Wind Speed WNW 6 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 28 Aug 12:00 AM MDT
Extended Forecast for

Weiser ID

  • Overnight

    Overnight: Patchy smoke before 4am. Mostly cloudy, with a low around 62. West northwest wind 3 to 8 mph.

    Low: 62 °F

    Patchy Smoke

  • Friday

    Friday: A slight chance of showers and thunderstorms between noon and 3pm. Cloudy, then gradually becoming mostly sunny and hot, with a high near 90. Light and variable wind becoming south southeast 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    High: 90 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and 3am. Mostly cloudy, with a low around 60. South southeast wind 6 to 13 mph becoming north northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 88. West northwest wind 7 to 9 mph becoming south southwest in the afternoon.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 52. West northwest wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy smoke before 4am. Mostly cloudy, with a low around 62. West northwest wind 3 to 8 mph.
Friday
A slight chance of showers and thunderstorms between noon and 3pm. Cloudy, then gradually becoming mostly sunny and hot, with a high near 90. Light and variable wind becoming south southeast 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and 3am. Mostly cloudy, with a low around 60. South southeast wind 6 to 13 mph becoming north northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Saturday
Sunny, with a high near 88. West northwest wind 7 to 9 mph becoming south southwest in the afternoon.
Saturday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 52. West northwest wind 5 to 11 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weiser ID
 44.25°N 116.96°W (Elev. 2188 ft)
Last Update:
12:29 pm MDT Aug 27, 2026
Forecast Valid:
12am MDT Aug 28, 2026-6pm MDT Sep 3, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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