As of 20:45 MDT

Weather in Ontario, OR

47°

Ontario, Wednesday, 28 October, 20:45

Clear. Feels like 45°. High 57°, low 36°.

Pressure30.03 inHg

Wind3.4 mph NE

Humidity67%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Monthly outlook for Ontario, OR: average high 58.4°, average low 41.7°. That is 1.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 4 days and 0.6 inches. The warmest day looks like 11 November (65.7°), the coolest 28 October (35.5°).

58.4°/41.7°

Average high / low

+1.8°

Above normal

1 / 4

Wet days / normal

0.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
28 October – 6 November	57.7°	56.6°	+0.6°
7 November – 16 November	59.5°	51.9°	+4.2°
17 November – 26 November	at normal	46.4°	—

October records over 66 years

94.3°1 October 1997All-time high

19°30 October 2019All-time low

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

Thu, 2960° / 37°

60 °

Ontario, Thursday, 29 October

Overcast. High 60°, low 37°.

Pressure30.06 inHg

Wind2.7 mph E

Humidity62%

Visibility6.2 mi

Dew point33°

Fri, 3056° / 41°

56 °

Ontario, Friday, 30 October

Overcast. High 56°, low 41°.

Pressure29.91 inHg

Wind2.3 mph E

Humidity58%

Visibility6.2 mi

Dew point36°

Sat, 3157° / 37°

0.06

57 °

Ontario, Saturday, 31 October

Rain. High 57°, low 37°.

Pressure30.00 inHg

Wind1.6 mph E

Humidity73%

Visibility6.2 mi

Dew point41°

Sun, 0158° / 41°

58 °

Ontario, Sunday, 1 November

Clear. High 58°, low 41°.

Pressure30.00 inHg

Wind11.5 mph NW

Humidity60%

Visibility6.2 mi

Dew point40°

Mon, 0256° / 37°

56 °

Ontario, Monday, 2 November

Clear. High 56°, low 37°.

Pressure30.36 inHg

Wind8.8 mph NW

Humidity55%

Visibility—

Dew point33°

Tue, 0355° / 40°

55 °

Ontario, Tuesday, 3 November

Overcast. High 55°, low 40°.

Pressure30.39 inHg

Wind8.5 mph N

Humidity56%

Visibility—

Dew point34°

Wed, 0457° / 43°

57 °

Ontario, Wednesday, 4 November

Overcast. High 57°, low 43°.

Pressure29.94 inHg

Wind4.7 mph E

Humidity34%

Visibility—

Dew point24°

Thu, 0560° / 45°

60 °

Ontario, Thursday, 5 November

Overcast. High 60°, low 45°.

Pressure30.00 inHg

Wind3.8 mph NW

Humidity32%

Visibility—

Dew point25°

Fri, 0660° / 43°

60 °

Ontario, Friday, 6 November

Mostly clear. High 60°, low 43°.

Pressure30.09 inHg

Wind3.9 mph SE

Humidity44%

Visibility—

Dew point32°

Sat, 0756° / 45°

56 °

Ontario, Saturday, 7 November

Overcast. High 56°, low 45°.

Pressure30.06 inHg

Wind6 mph SE

Humidity46%

Visibility—

Dew point31°

Sun, 0861° / 45°

61 °

Ontario, Sunday, 8 November

Overcast. High 61°, low 45°.

Pressure30.27 inHg

Wind15.2 mph W

Humidity47%

Visibility—

Dew point36°

Mon, 0955° / 41°

55 °

Ontario, Monday, 9 November

Overcast. High 55°, low 41°.

Pressure30.36 inHg

Wind5.2 mph N

Humidity41%

Visibility—

Dew point26°

Tue, 1059° / 45°

59 °

Ontario, Tuesday, 10 November

Overcast. High 59°, low 45°.

Pressure30.12 inHg

Wind3 mph SE

Humidity29%

Visibility—

Dew point22°

Wed, 1166° / 46°

66 °

Ontario, Wednesday, 11 November

Overcast. High 66°, low 46°.

Pressure29.91 inHg

Wind9.8 mph SE

Humidity29%

Visibility—

Dew point24°

Thu, 1261° / 44°

61 °

Ontario, Thursday, 12 November

Partly cloudy. High 61°, low 44°.

Pressure29.71 inHg

Wind8.1 mph N

Humidity35%

Visibility—

Dew point28°

From day 17 onward the outlook is built from 60-year climate statistics

Fri, 1352° / 35°

0.05

52 °

Ontario, Friday, 13 November

Climate normal for this date — 60-year average.

Average high52°

Average low35°

Average precipitation0.05 in

Chance of precipitation32%

Record high68° (1999)

Record low21° (2000)

Sat, 1451° / 35°

0.04

51 °

Ontario, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high51°

Average low35°

Average precipitation0.04 in

Chance of precipitation22%

Record high65° (1999)

Record low19° (2014)

Sun, 1551° / 34°

0.03

51 °

Ontario, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high51°

Average low34°

Average precipitation0.03 in

Chance of precipitation20%

Record high66° (2001)

Record low2° (2014)

Mon, 1650° / 35°

0.05

50 °

Ontario, Monday, 16 November

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.05 in

Chance of precipitation28%

Record high64° (2001)

Record low6° (2014)

Tue, 1750° / 35°

0.06

50 °

Ontario, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.06 in

Chance of precipitation35%

Record high65° (2007)

Record low3° (2014)

Wed, 1849° / 34°

0.04

49 °

Ontario, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.04 in

Chance of precipitation23%

Record high65° (2007)

Record low2° (2014)

Thu, 1948° / 33°

0.04

48 °

Ontario, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.04 in

Chance of precipitation28%

Record high69° (2003)

Record low5° (2014)

Fri, 2048° / 33°

0.04

48 °

Ontario, Friday, 20 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.04 in

Chance of precipitation22%

Record high63° (2012)

Record low17° (2014)

Sat, 2146° / 32°

0.05

46 °

Ontario, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high46°

Average low32°

Average precipitation0.05 in

Chance of precipitation30%

Record high65° (2006)

Record low12° (1985)

Sun, 2245° / 31°

0.07

45 °

Ontario, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.07 in

Chance of precipitation35%

Record high60° (2006)

Record low12° (1985)

Mon, 2345° / 30°

0.04

45 °

Ontario, Monday, 23 November

Climate normal for this date — 60-year average.

Average high45°

Average low30°

Average precipitation0.04 in

Chance of precipitation28%

Record high63° (2017)

Record low9° (1985)

Tue, 2445° / 31°

0.07

45 °

Ontario, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.07 in

Chance of precipitation35%

Record high64° (1990)

Record low13° (1985)

Wed, 2545° / 31°

0.06

45 °

Ontario, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.06 in

Chance of precipitation33%

Record high59° (2014)

Record low14° (1993)

Thu, 2643° / 29°

0.04

43 °

Ontario, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high43°

Average low29°

Average precipitation0.04 in

Chance of precipitation22%

Record high60° (1998)

Record low12° (1985)

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, OR 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, OR 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.