National Weather Service United States Department of Commerce

On Saturday, severe weather will be possible across portions of the northern Plains while dry and hot conditions begin returning to the West.

Severe weather is possible over parts of the northern Plains on Saturday. During the late afternoon and early evening hours, large hail and isolated tornadoes will be the primary threats with damaging winds becoming the greatest threat in the late evening hours. Out west, hot and dry conditions begin to return bringing increased heat dangers and fire weather concerns.
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Current Conditions

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Ontario CA

7 Day Forecast

For More Weather Information:

San Diego, CA Local Forecast Office

Tonight

Mostly Clear

Mostly
Clear

Low: 68 °F

Saturday

Sunny

Sunny

High: 94 °F

Saturday
Night

Mostly Clear

Mostly
Clear

Low: 69 °F

Sunday

Sunny

Sunny

High: 92 °F

Sunday
Night

Clear

Clear

Low: 66 °F

Labor
Day

Sunny

Sunny

High: 90 °F

Monday
Night

Mostly Clear

Mostly
Clear

Low: 66 °F

Tuesday

Sunny

Sunny

High: 89 °F

Tuesday
Night

Patchy Fog

Patchy
Fog

Low: 65 °F

Detailed Forecast

  • Tonight Mostly clear, with a low around 68. West wind 5 to 10 mph becoming light southwest in the evening.
  • Saturday Sunny, with a high near 94. Light southwest wind increasing to 5 to 10 mph in the afternoon.
  • Saturday Night Mostly clear, with a low around 69. Southwest wind 5 to 10 mph.
  • Sunday Sunny, with a high near 92. Light southwest wind increasing to 5 to 10 mph in the afternoon.
  • Sunday Night Clear, with a low around 66. West wind 5 to 10 mph.
  • Labor Day Sunny, with a high near 90.
  • Monday Night Mostly clear, with a low around 66.
  • Tuesday Sunny, with a high near 89.
  • Tuesday Night Patchy fog after 11pm. Otherwise, mostly clear, with a low around 65.
  • Wednesday Patchy fog before 11am. Otherwise, sunny, with a high near 88.
  • Wednesday Night Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 63.
  • Thursday Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 85.
  • Thursday Night Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 64.
  • Friday Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86.