10-day forecast for Ontario, OR: 30° to 56°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
52°
Best day: Sunday, November 22
53° · 0.39 in
Worst day: Sunday, November 15
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 1553° / 41°0.39
Morning41°feels 41°
Afternoon52°feels 50°
Evening48°feels 48°
Overnight43°feels 39°
53 °
Ontario, Sunday, 15 November
Rain. High 53°, low 41°.
Pressure30.06 inHg
Wind0.5 mph NW
Humidity56%
Visibility6.2 mi
Dew point32°
Mon, 1647° / 40°0.26
Morning40°feels 40°
Afternoon46°feels 46°
Evening42°feels 42°
Overnight42°feels 42°
47 °
Ontario, Monday, 16 November
Light rain. High 47°, low 40°.
Pressure30.12 inHg
Wind1 mph S
Humidity93%
Visibility3.9 mi
Dew point43°
Tue, 1749° / 34°0.02
Morning38°feels 33°
Afternoon49°feels 46°
Evening38°feels 38°
Overnight41°feels 36°
49 °
Ontario, Tuesday, 17 November
Light rain. High 49°, low 34°.
Pressure30.03 inHg
Wind8.4 mph W
Humidity56%
Visibility6.2 mi
Dew point31°
Wed, 1843° / 30°0.07
Morning31°feels 31°
Afternoon43°feels 40°
Evening38°feels 38°
Overnight31°feels 31°
43 °
Ontario, Wednesday, 18 November
Light rain. High 43°, low 30°.
Pressure30.12 inHg
Wind3.6 mph NE
Humidity72%
Visibility6.2 mi
Dew point30°
Thu, 1946° / 37°0.02
Morning40°feels 38°
Afternoon43°feels 43°
Evening44°feels 42°
Overnight41°feels 40°
46 °
Ontario, Thursday, 19 November
Light rain. High 46°, low 37°.
Pressure30.00 inHg
Wind4.1 mph N
Humidity78%
Visibility—
Dew point36°
Fri, 2048° / 40°0.01
Morning41°feels 41°
Afternoon45°feels 44°
Evening45°feels 42°
Overnight41°feels 41°
48 °
Ontario, Friday, 20 November
Light rain. High 48°, low 40°.
Pressure29.97 inHg
Wind6.3 mph N
Humidity84%
Visibility—
Dew point39°
Sat, 2151° / 37°0
Morning40°feels 39°
Afternoon46°feels 42°
Evening46°feels 44°
Overnight43°feels 43°
51 °
Ontario, Saturday, 21 November
Overcast. High 51°, low 37°.
Pressure30.21 inHg
Wind9.3 mph SE
Humidity60%
Visibility—
Dew point32°
Sun, 2252° / 40°0
Morning44°feels 39°
Afternoon47°feels 43°
Evening47°feels 45°
Overnight45°feels 42°
52 °
Ontario, Sunday, 22 November
Overcast. High 52°, low 40°.
Pressure30.06 inHg
Wind11.2 mph SE
Humidity59%
Visibility—
Dew point33°
Mon, 2351° / 38°0
Morning42°feels 42°
Afternoon46°feels 45°
Evening46°feels 44°
Overnight42°feels 42°
51 °
Ontario, Monday, 23 November
Overcast. High 51°, low 38°.
Pressure30.15 inHg
Wind4.8 mph S
Humidity67%
Visibility—
Dew point35°
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, OR 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.