As of 04:46 CDT

Weather in Ontario, KS

44°Current weather

Ontario, Sunday, 18 October, 04:46

Clear. Feels like 38°. High 66°, low 42°.

Pressure30.33 inHg
Wind11.5 mph S
Humidity82%
Visibility6.2 mi
Dew point39°

Monthly outlook for Ontario, KS: average high 68.9°, average low 52.1°. That is 4° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 1 November (76.9°), the coolest 18 October (42.2°).

68.9°/52.1°
Average high / low
+4°
Above normal
3 / 4
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October67°63.3°+2°
28 October – 6 November72.1°58.1°+7.8°
7 November – 16 Novemberat normal53.7°—

October records over 66 years

93.7°5 October 1963All-time high
21.7°31 October 1993All-time low

Climate normals and records are computed from the nearest reference point — Holton (10 mi).

Mon, 1965° / 42°0Overcast
65 °Overcast

Ontario, Monday, 19 October

Overcast. High 65°, low 42°.

Pressure30.30 inHg
Wind9.6 mph S
Humidity60%
Visibility6.2 mi
Dew point46°
Tue, 2069° / 47°0Clear
69 °Clear

Ontario, Tuesday, 20 October

Clear. High 69°, low 47°.

Pressure30.27 inHg
Wind8.8 mph S
Humidity59%
Visibility6.2 mi
Dew point50°
Wed, 2172° / 52°0.01Light rain
72 °Light rain

Ontario, Wednesday, 21 October

Light rain. High 72°, low 52°.

Pressure30.21 inHg
Wind9.3 mph S
Humidity54%
Visibility6.2 mi
Dew point50°
Thu, 2272° / 52°0Overcast
72 °Overcast

Ontario, Thursday, 22 October

Overcast. High 72°, low 52°.

Pressure30.21 inHg
Wind9.6 mph SE
Humidity47%
Visibility—
Dew point48°
Fri, 2373° / 54°0Overcast
73 °Overcast

Ontario, Friday, 23 October

Overcast. High 73°, low 54°.

Pressure30.12 inHg
Wind16.4 mph S
Humidity51%
Visibility—
Dew point49°
Sat, 2470° / 56°0.47Rain
70 °Rain

Ontario, Saturday, 24 October

Rain. High 70°, low 56°.

Pressure30.18 inHg
Wind16.1 mph W
Humidity61%
Visibility—
Dew point55°
Sun, 2556° / 47°0Overcast
56 °Overcast

Ontario, Sunday, 25 October

Overcast. High 56°, low 47°.

Pressure30.53 inHg
Wind12.4 mph NE
Humidity45%
Visibility—
Dew point32°
Mon, 2658° / 46°0.19Light rain
58 °Light rain

Ontario, Monday, 26 October

Light rain. High 58°, low 46°.

Pressure30.27 inHg
Wind8.7 mph S
Humidity85%
Visibility—
Dew point47°
Tue, 2768° / 56°0Overcast
68 °Overcast

Ontario, Tuesday, 27 October

Overcast. High 68°, low 56°.

Pressure30.06 inHg
Wind11.7 mph S
Humidity55%
Visibility—
Dew point48°
Wed, 2864° / 55°0.22Light rain
64 °Light rain

Ontario, Wednesday, 28 October

Light rain. High 64°, low 55°.

Pressure29.91 inHg
Wind13.8 mph S
Humidity78%
Visibility—
Dew point55°
Thu, 2970° / 57°0Overcast
70 °Overcast

Ontario, Thursday, 29 October

Overcast. High 70°, low 57°.

Pressure29.77 inHg
Wind6.3 mph SW
Humidity65%
Visibility—
Dew point55°
Fri, 3074° / 55°0Clear
74 °Clear

Ontario, Friday, 30 October

Clear. High 74°, low 55°.

Pressure29.71 inHg
Wind15.9 mph SW
Humidity62%
Visibility—
Dew point56°
Sat, 3176° / 58°0Mostly clear
76 °Mostly clear

Ontario, Saturday, 31 October

Mostly clear. High 76°, low 58°.

Pressure29.74 inHg
Wind13.5 mph SW
Humidity56%
Visibility—
Dew point55°
Sun, 0177° / 57°0Clear
77 °Clear

Ontario, Sunday, 1 November

Clear. High 77°, low 57°.

Pressure29.94 inHg
Wind11.1 mph SW
Humidity42%
Visibility—
Dew point47°
Mon, 0271° / 54°0Partly cloudy
71 °Partly cloudy

Ontario, Monday, 2 November

Partly cloudy. High 71°, low 54°.

Pressure30.15 inHg
Wind7.1 mph NE
Humidity52%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0357° / 42°0.08Climate normal
57 °Climate normal

Ontario, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.08 in
Chance of precipitation27%
Record high78° (1978)
Record low12° (1991)
Wed, 0456° / 40°0.09Climate normal
56 °Climate normal

Ontario, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.09 in
Chance of precipitation23%
Record high79° (1978)
Record low15° (1991)
Thu, 0556° / 40°0.05Climate normal
56 °Climate normal

Ontario, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.05 in
Chance of precipitation25%
Record high73° (2015)
Record low23° (1982)
Fri, 0656° / 40°0.06Climate normal
56 °Climate normal

Ontario, Friday, 6 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.06 in
Chance of precipitation17%
Record high73° (1980)
Record low23° (1993)
Sat, 0756° / 40°0.03Climate normal
56 °Climate normal

Ontario, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.03 in
Chance of precipitation10%
Record high75° (1966)
Record low13° (1991)
Sun, 0857° / 41°0.08Climate normal
57 °Climate normal

Ontario, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high57°
Average low41°
Average precipitation0.08 in
Chance of precipitation17%
Record high77° (1980)
Record low15° (1991)
Mon, 0956° / 40°0.11Climate normal
56 °Climate normal

Ontario, Monday, 9 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.11 in
Chance of precipitation28%
Record high77° (2012)
Record low18° (2018)
Tue, 1053° / 38°0.1Climate normal
53 °Climate normal

Ontario, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.1 in
Chance of precipitation25%
Record high76° (2012)
Record low15° (2018)
Wed, 1152° / 36°0.06Climate normal
52 °Climate normal

Ontario, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high52°
Average low36°
Average precipitation0.06 in
Chance of precipitation18%
Record high75° (1964)
Record low10° (1986)
Thu, 1251° / 36°0.07Climate normal
51 °Climate normal

Ontario, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high51°
Average low36°
Average precipitation0.07 in
Chance of precipitation18%
Record high74° (2005)
Record low8° (2019)
Fri, 1353° / 36°0.06Climate normal
53 °Climate normal

Ontario, Friday, 13 November

Climate normal for this date — 60-year average.

Average high53°
Average low36°
Average precipitation0.06 in
Chance of precipitation15%
Record high76° (1999)
Record low7° (1986)
Sat, 1453° / 37°0.03Climate normal
53 °Climate normal

Ontario, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.03 in
Chance of precipitation18%
Record high73° (2025)
Record low16° (2014)
Sun, 1553° / 37°0.06Climate normal
53 °Climate normal

Ontario, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation22%
Record high73° (2025)
Record low21° (1972)
Mon, 1653° / 37°0.08Climate normal
53 °Climate normal

Ontario, Monday, 16 November

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.08 in
Chance of precipitation17%
Record high74° (1963)
Record low18° (2014)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Ontario, KS are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Ontario, KS since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.