10-day forecast for Ontario, WI: 29° to 64°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
61°
Best day: Monday, November 9
64° · 0.43 in
Worst day: Tuesday, November 3
Tap any day below to see morning, afternoon, evening and overnight.
Wed, 0462° / 51°0.04
Morning58°feels 58°
Afternoon56°feels 55°
Evening52°feels 51°
Overnight60°feels 60°
62 °
Ontario, Wednesday, 4 November
Light rain. High 62°, low 51°.
Pressure29.53 inHg
Wind11.5 mph SW
Humidity80%
Visibility6.2 mi
Dew point49°
Thu, 0551° / 42°0.07
Morning49°feels 45°
Afternoon50°feels 45°
Evening44°feels 38°
Overnight50°feels 46°
51 °
Ontario, Thursday, 5 November
Light rain. High 51°, low 42°.
Pressure29.80 inHg
Wind12.2 mph N
Humidity89%
Visibility4.4 mi
Dew point45°
Fri, 0646° / 34°0
Morning37°feels 30°
Afternoon46°feels 42°
Evening35°feels 35°
Overnight40°feels 35°
46 °
Ontario, Friday, 6 November
Overcast. High 46°, low 34°.
Pressure30.24 inHg
Wind7.7 mph N
Humidity61%
Visibility6.2 mi
Dew point25°
Sat, 0749° / 29°0
Morning36°feels 34°
Afternoon48°feels 46°
Evening40°feels 35°
Overnight30°feels 27°
49 °
Ontario, Saturday, 7 November
Clear. High 49°, low 29°.
Pressure30.18 inHg
Wind5.5 mph SW
Humidity57%
Visibility6.2 mi
Dew point30°
Sun, 0854° / 39°0
Morning44°feels 39°
Afternoon53°feels 50°
Evening47°feels 42°
Overnight43°feels 38°
54 °
Ontario, Sunday, 8 November
Clear. High 54°, low 39°.
Pressure30.00 inHg
Wind13.9 mph W
Humidity46%
Visibility—
Dew point32°
Mon, 0961° / 38°0
Morning44°feels 41°
Afternoon58°feels 55°
Evening50°feels 48°
Overnight45°feels 42°
61 °
Ontario, Monday, 9 November
Partly cloudy. High 61°, low 38°.
Pressure29.97 inHg
Wind11.9 mph SW
Humidity49%
Visibility—
Dew point37°
Tue, 1055° / 40°0
Morning45°feels 41°
Afternoon53°feels 50°
Evening43°feels 40°
Overnight40°feels 37°
55 °
Ontario, Tuesday, 10 November
Mostly clear. High 55°, low 40°.
Pressure30.12 inHg
Wind10.8 mph NW
Humidity38%
Visibility—
Dew point28°
Wed, 1149° / 37°0
Morning41°feels 39°
Afternoon47°feels 45°
Evening39°feels 37°
Overnight37°feels 35°
49 °
Ontario, Wednesday, 11 November
Overcast. High 49°, low 37°.
Pressure30.24 inHg
Wind5.2 mph E
Humidity50%
Visibility—
Dew point29°
Thu, 1250° / 33°0
Morning38°feels 33°
Afternoon49°feels 45°
Evening43°feels 39°
Overnight40°feels 36°
50 °
Ontario, Thursday, 12 November
Partly cloudy. High 50°, low 33°.
Pressure30.09 inHg
Wind8.3 mph SW
Humidity48%
Visibility—
Dew point29°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Ontario, WI around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.