10-day forecast for Ontario, WI: 33° to 66°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
61°
Best day: Wednesday, November 4
62° · 0.49 in
Worst day: Monday, November 2
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 0366° / 62°0.31
Morning64°feels 64°
Afternoon65°feels 65°
Evening63°feels 64°
Overnight64°feels 65°
66 °
Ontario, Tuesday, 3 November
Rain. High 66°, low 62°.
Pressure29.68 inHg
Wind13.6 mph S
Humidity92%
Visibility4.9 mi
Dew point63°
Wed, 0461° / 50°0.02
Morning54°feels 53°
Afternoon53°feels 52°
Evening51°feels 49°
Overnight61°feels 61°
61 °
Ontario, Wednesday, 4 November
Light rain. High 61°, low 50°.
Pressure29.59 inHg
Wind12.3 mph SW
Humidity78%
Visibility6.2 mi
Dew point46°
Thu, 0551° / 47°0.17
Morning47°feels 44°
Afternoon51°feels 50°
Evening49°feels 45°
Overnight48°feels 44°
51 °
Ontario, Thursday, 5 November
Light rain. High 51°, low 47°.
Pressure29.65 inHg
Wind5.9 mph W
Humidity91%
Visibility6.2 mi
Dew point48°
Fri, 0649° / 45°0.02
Morning47°feels 43°
Afternoon49°feels 45°
Evening46°feels 42°
Overnight47°feels 42°
49 °
Ontario, Friday, 6 November
Light rain. High 49°, low 45°.
Pressure30.00 inHg
Wind8.9 mph N
Humidity70%
Visibility6.2 mi
Dew point39°
Sat, 0749° / 44°0
Morning45°feels 43°
Afternoon47°feels 44°
Evening45°feels 41°
Overnight45°feels 40°
49 °
Ontario, Saturday, 7 November
Overcast. High 49°, low 44°.
Pressure30.03 inHg
Wind9.7 mph S
Humidity68%
Visibility—
Dew point37°
Sun, 0845° / 36°0.13
Morning42°feels 35°
Afternoon40°feels 33°
Evening39°feels 33°
Overnight37°feels 31°
45 °
Ontario, Sunday, 8 November
Light rain. High 45°, low 36°.
Pressure29.88 inHg
Wind15.9 mph NW
Humidity96%
Visibility—
Dew point40°
Mon, 0945° / 33°0
Morning39°feels 34°
Afternoon43°feels 39°
Evening39°feels 37°
Overnight37°feels 33°
45 °
Ontario, Monday, 9 November
Partly cloudy. High 45°, low 33°.
Pressure30.03 inHg
Wind8.7 mph NW
Humidity61%
Visibility—
Dew point30°
Tue, 1050° / 34°0
Morning38°feels 35°
Afternoon47°feels 43°
Evening39°feels 35°
Overnight36°feels 32°
50 °
Ontario, Tuesday, 10 November
Overcast. High 50°, low 34°.
Pressure30.03 inHg
Wind10.4 mph NW
Humidity60%
Visibility—
Dew point33°
Wed, 1153° / 33°0
Morning38°feels 35°
Afternoon50°feels 46°
Evening41°feels 37°
Overnight37°feels 31°
53 °
Ontario, Wednesday, 11 November
Clear. High 53°, low 33°.
Pressure29.97 inHg
Wind11.9 mph W
Humidity39%
Visibility—
Dew point25°
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.