Local Forecast

Ontario, WI Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Ontario, WI.

Active Alerts 2 active

Hour-by-Hour  Current Observation

Sunday 4:55 PM CDTSunday 4:55 PM

°F °C
Regional Observations →
77°F

Mostly Cloudy

  • 84° / 73° High / Low
  • 77° Feels Like
  • 0% Chance of Rain

Wind

7 mph

SE

UV Index

5

Moderate

Humidity

72%

Dew 67°F

Sun

5:22 AM · 8:48 PM

Rise · Set

Source: VOLK/CAMP DOUGLA (KVOK). Slider scrubs the next 12 hours.

5-Day Outlook

Through Thursday

Local Radar →

Today

84° 73°

Isolated T-storm

Overnight: Chance of Thunderstorms

Detailed forecast

Today

A slight chance of rain showers between noon and 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm. Partly sunny, with a high near 83. Southeast wind 9 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Night

A chance of showers and thunderstorms before 5am. Mostly cloudy, with a low around 72. South wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Monday

95° 75°

Partly Sunny

Overnight: Partly Cloudy

Detailed forecast

Monday

Mostly sunny, with a high near 94. Heat index values as high as 103. South wind 8 to 17 mph, with gusts as high as 26 mph.

Night

Mostly clear, with a low around 75. Heat index values as high as 104. South wind 9 to 18 mph, with gusts as high as 28 mph.

Tuesday

95° 73°

Partly Sunny

Overnight: Chance of Scattered Thunderstorms

Detailed forecast

Tuesday

Mostly sunny, with a high near 94. Southwest wind 9 to 15 mph, with gusts as high as 25 mph.

Night

A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 72. Southwest wind 6 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Wednesday

91° 71°

Chance of Scattered Thunderstorms

Overnight: Thunderstorms Likely

Detailed forecast

Wednesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

Night

A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 71. Southwest wind around 8 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

Thursday

91° 71°

Chance of Scattered Thunderstorms

Overnight: Chance of Scattered Thunderstorms

Detailed forecast

Thursday

Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91. Southwest wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.

Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Southwest wind around 6 mph. Chance of precipitation is 50%.

Ontario, WI Weather Analysis Tools