10-day forecast for Ontario, WI: 23° to 57°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
55°
Best day: Wednesday, November 18
57° · 0.27 in
Worst day: Saturday, November 21
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1652° / 26°0
Morning32°feels 24°
Afternoon52°feels 49°
Evening42°feels 35°
Overnight28°feels 21°
52 °
Ontario, Monday, 16 November
Overcast. High 52°, low 26°.
Pressure30.42 inHg
Wind9.9 mph SW
Humidity56%
Visibility6.2 mi
Dew point31°
Tue, 1754° / 38°0
Morning40°feels 33°
Afternoon54°feels 52°
Evening46°feels 39°
Overnight40°feels 34°
54 °
Ontario, Tuesday, 17 November
Overcast. High 54°, low 38°.
Pressure30.33 inHg
Wind10.9 mph S
Humidity49%
Visibility6.2 mi
Dew point33°
Wed, 1855° / 41°0
Morning42°feels 35°
Afternoon54°feels 52°
Evening51°feels 49°
Overnight42°feels 36°
55 °
Ontario, Wednesday, 18 November
Overcast. High 55°, low 41°.
Pressure30.15 inHg
Wind14 mph S
Humidity55%
Visibility6.2 mi
Dew point36°
Thu, 1956° / 43°0.19
Morning50°feels 45°
Afternoon53°feels 51°
Evening47°feels 42°
Overnight49°feels 43°
56 °
Ontario, Thursday, 19 November
Light rain. High 56°, low 43°.
Pressure30.12 inHg
Wind16.5 mph W
Humidity61%
Visibility—
Dew point40°
Fri, 2053° / 35°0
Morning40°feels 39°
Afternoon51°feels 48°
Evening50°feels 46°
Overnight49°feels 48°
53 °
Ontario, Friday, 20 November
Overcast. High 53°, low 35°.
Pressure30.27 inHg
Wind14.5 mph S
Humidity58%
Visibility—
Dew point35°
Sat, 2157° / 45°0.27
Morning52°feels 51°
Afternoon51°feels 49°
Evening48°feels 42°
Overnight47°feels 40°
57 °
Ontario, Saturday, 21 November
Rain. High 57°, low 45°.
Pressure29.77 inHg
Wind19.1 mph W
Humidity93%
Visibility—
Dew point49°
Sun, 2242° / 30°0
Morning37°feels 27°
Afternoon38°feels 29°
Evening33°feels 26°
Overnight31°feels 23°
42 °
Ontario, Sunday, 22 November
Overcast. High 42°, low 30°.
Pressure30.30 inHg
Wind20.8 mph W
Humidity53%
Visibility—
Dew point23°
Mon, 2338° / 23°0
Morning27°feels 22°
Afternoon35°feels 31°
Evening28°feels 22°
Overnight26°feels 20°
38 °
Ontario, Monday, 23 November
Mostly clear. High 38°, low 23°.
Pressure30.59 inHg
Wind6 mph E
Humidity43%
Visibility—
Dew point15°
Tue, 2443° / 25°0
Morning30°feels 23°
Afternoon41°feels 34°
Evening36°feels 28°
Overnight33°feels 26°
43 °
Ontario, Tuesday, 24 November
Overcast. High 43°, low 25°.
Pressure30.45 inHg
Wind12.4 mph S
Humidity49%
Visibility—
Dew point22°
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.