10-day forecast for Ontario, KS: 65° to 111°, with precipitation expected on 7 days. The table below breaks each day into morning, afternoon, evening and overnight.
111°
Best day: Tuesday, August 18
89° · 0.26 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1097° / 75°0.06
Morning76°feels 75°
Afternoon89°feels 86°
Evening81°feels 82°
Overnight78°feels 79°
97 °
Ontario, Monday, 10 August
Rain. High 97°, low 75°.
Pressure29.83 inHg
Wind10.3 mph SW
Humidity30%
Visibility6.2 mi
Dew point59°
Tue, 11109° / 74°0.23
Morning82°feels 82°
Afternoon105°feels 105°
Evening76°feels 77°
Overnight86°feels 85°
109 °
Ontario, Tuesday, 11 August
Rain. High 109°, low 74°.
Pressure29.74 inHg
Wind18.4 mph SW
Humidity27%
Visibility6.2 mi
Dew point60°
Wed, 1293° / 72°0.11
Morning74°feels 75°
Afternoon94°feels 95°
Evening86°feels 88°
Overnight78°feels 78°
93 °
Ontario, Wednesday, 12 August
Light rain. High 93°, low 72°.
Pressure29.80 inHg
Wind4.1 mph N
Humidity42%
Visibility6.2 mi
Dew point64°
Thu, 1389° / 69°0.26
Morning76°feels 78°
Afternoon85°feels 89°
Evening73°feels 74°
Overnight73°feels 75°
89 °
Ontario, Thursday, 13 August
Rain. High 89°, low 69°.
Pressure29.80 inHg
Wind23.5 mph E
Humidity52%
Visibility—
Dew point66°
Fri, 1483° / 65°0.07
Morning67°feels 68°
Afternoon75°feels 76°
Evening78°feels 80°
Overnight68°feels 69°
83 °
Ontario, Friday, 14 August
Light rain. High 83°, low 65°.
Pressure29.97 inHg
Wind19 mph NE
Humidity79%
Visibility—
Dew point65°
Sat, 1586° / 66°0.07
Morning70°feels 71°
Afternoon78°feels 80°
Evening80°feels 83°
Overnight71°feels 72°
86 °
Ontario, Saturday, 15 August
Light rain. High 86°, low 66°.
Pressure30.09 inHg
Wind12.1 mph NE
Humidity73%
Visibility—
Dew point67°
Sun, 1691° / 67°0.02
Morning73°feels 74°
Afternoon87°feels 89°
Evening87°feels 89°
Overnight75°feels 76°
91 °
Ontario, Sunday, 16 August
Light rain. High 91°, low 67°.
Pressure30.09 inHg
Wind10 mph NE
Humidity52%
Visibility—
Dew point64°
Mon, 1787° / 69°0.13
Morning72°feels 73°
Afternoon79°feels 81°
Evening84°feels 87°
Overnight75°feels 76°
87 °
Ontario, Monday, 17 August
Light rain. High 87°, low 69°.
Pressure30.06 inHg
Wind12.2 mph E
Humidity72%
Visibility—
Dew point67°
Tue, 18111° / 70°0
Morning79°feels 79°
Afternoon103°feels 101°
Evening103°feels 100°
Overnight86°feels 83°
111 °
Ontario, Tuesday, 18 August
Overcast. High 111°, low 70°.
Pressure29.80 inHg
Wind13.3 mph SW
Humidity21%
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, KS 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.