10-day forecast for Ontario, WI: 27° to 57°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
54°
Best day: Wednesday, November 18
53° · 0.36 in
Worst day: Saturday, November 21
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1442° / 27°0
Morning30°feels 26°
Afternoon42°feels 39°
Evening32°feels 29°
Overnight28°feels 23°
42 °
Ontario, Saturday, 14 November
Clear. High 42°, low 27°.
Pressure30.33 inHg
Wind3.8 mph NW
Humidity68%
Visibility6.2 mi
Dew point24°
Sun, 1546° / 28°0
Morning32°feels 28°
Afternoon46°feels 45°
Evening34°feels 29°
Overnight30°feels 30°
46 °
Ontario, Sunday, 15 November
Clear. High 46°, low 28°.
Pressure30.45 inHg
Wind3.6 mph SW
Humidity60%
Visibility6.2 mi
Dew point27°
Mon, 1649° / 31°0
Morning34°feels 26°
Afternoon49°feels 45°
Evening39°feels 33°
Overnight32°feels 25°
49 °
Ontario, Monday, 16 November
Overcast. High 49°, low 31°.
Pressure30.45 inHg
Wind10 mph SW
Humidity55%
Visibility6.2 mi
Dew point31°
Tue, 1753° / 35°0
Morning39°feels 34°
Afternoon50°feels 47°
Evening45°feels 39°
Overnight36°feels 29°
53 °
Ontario, Tuesday, 17 November
Overcast. High 53°, low 35°.
Pressure30.39 inHg
Wind12.1 mph S
Humidity55%
Visibility—
Dew point33°
Wed, 1854° / 38°0
Morning42°feels 36°
Afternoon51°feels 48°
Evening50°feels 46°
Overnight49°feels 47°
54 °
Ontario, Wednesday, 18 November
Overcast. High 54°, low 38°.
Pressure30.18 inHg
Wind15.6 mph S
Humidity56%
Visibility—
Dew point35°
Thu, 1954° / 43°0
Morning52°feels 50°
Afternoon52°feels 49°
Evening45°feels 40°
Overnight44°feels 40°
54 °
Ontario, Thursday, 19 November
Mostly clear. High 54°, low 43°.
Pressure30.15 inHg
Wind17.2 mph W
Humidity55%
Visibility—
Dew point37°
Fri, 2050° / 37°0.01
Morning40°feels 40°
Afternoon48°feels 47°
Evening43°feels 39°
Overnight42°feels 39°
50 °
Ontario, Friday, 20 November
Light rain. High 50°, low 37°.
Pressure30.42 inHg
Wind6.8 mph SE
Humidity52%
Visibility—
Dew point30°
Sat, 2153° / 43°0.36
Morning50°feels 47°
Afternoon53°feels 52°
Evening52°feels 52°
Overnight52°feels 50°
53 °
Ontario, Saturday, 21 November
Rain. High 53°, low 43°.
Pressure30.03 inHg
Wind12.4 mph SW
Humidity93%
Visibility—
Dew point50°
Sun, 2257° / 52°0.16
Morning55°feels 54°
Afternoon57°feels 56°
Evening57°feels 57°
Overnight57°feels 56°
57 °
Ontario, Sunday, 22 November
Light rain. High 57°, low 52°.
Pressure29.74 inHg
Wind17.9 mph S
Humidity83%
Visibility—
Dew point51°
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.