
Dangerous Heat over the South-Central and Southwest U.S. Through Next Week
Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >
Current conditions at
Ontario Municipal Airport (KONO)
Lat: 44.01424°NLon: 117.00808°WElev: 2185.0ft.
Clear
66°F
19°C
| Humidity | 45% |
| Wind Speed | W 8 MPH |
| Barometer | 30.0 in (1015.92 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 7.00 mi |
| Last update | 23 Aug 05:35 AM MDT |
Extended Forecast for
Ontario Municipal OR
Today

High: 92 °F
Hot
Tonight

Low: 59 °F
Partly Cloudy
Monday

High: 93 °F
Hot
Monday Night

Low: 62 °F
Partly Cloudy
Tuesday

High: 96 °F
Hot
Tuesday Night

Low: 64 °F
Mostly Cloudy
Wednesday

High: 96 °F
Hot
Wednesday Night

Low: 63 °F
Partly Cloudy
Thursday

High: 93 °F
Hot
Detailed Forecast
Today
Sunny and hot, with a high near 92. West southwest wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 59. West wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph.
Monday
Partly sunny and hot, with a high near 93. Northwest wind around 5 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 62. East wind around 6 mph becoming calm after midnight.
Tuesday
Sunny and hot, with a high near 96. Light and variable wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 64.
Wednesday
Mostly sunny and hot, with a high near 96.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Mostly sunny and hot, with a high near 93.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Sunny and hot, with a high near 92.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny and hot, with a high near 91.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Ontario Municipal OR
44.03°N 117°W (Elev. 2139 ft)
44.03°N 117°W (Elev. 2139 ft)
12:29 am MDT Aug 23, 2026
5am MDT Aug 23, 2026-6pm MDT Aug 29, 2026


