As of 23:19 PDT

Weather in Cornelius, OR

50°

Cornelius, Friday, 9 October, 23:19

Mostly clear. Feels like 49°. High 61°, low 50°.

Pressure29.88 inHg

Wind5.7 mph W

Humidity81%

Visibility6.2 mi

Dew point45°

See detailed hourly forecast

Monthly outlook for Cornelius, OR: average high 63.5°, average low 45.4°. That is 0.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 16 October (73.3°), the coolest 12 October (40.8°).

63.5°/45.4°

Average high / low

+0.7°

Above normal

3 / 6

Wet days / normal

0.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	66.2°	63.3°	+1.6°
19 October – 28 October	58.9°	59.2°	-0.2°
29 October – 7 November	at normal	55.2°	—

October records over 66 years

89.1°1 October 1987All-time high

26.6°28 October 1971All-time low

Sat, 1061° / 41°

61 °

Cornelius, Saturday, 10 October

Mostly clear. High 61°, low 41°.

Pressure29.85 inHg

Wind3.8 mph NW

Humidity44%

Visibility6.2 mi

Dew point37°

Sun, 1164° / 42°

64 °

Cornelius, Sunday, 11 October

Clear. High 64°, low 42°.

Pressure29.94 inHg

Wind1.4 mph N

Humidity48%

Visibility6.2 mi

Dew point40°

Mon, 1265° / 41°

65 °

Cornelius, Monday, 12 October

Clear. High 65°, low 41°.

Pressure30.06 inHg

Wind2.1 mph NE

Humidity47%

Visibility6.2 mi

Dew point40°

Tue, 1366° / 41°

66 °

Cornelius, Tuesday, 13 October

Overcast. High 66°, low 41°.

Pressure30.12 inHg

Wind2.4 mph SE

Humidity49%

Visibility6.2 mi

Dew point40°

Wed, 1468° / 44°

68 °

Cornelius, Wednesday, 14 October

Clear. High 68°, low 44°.

Pressure30.27 inHg

Wind4.7 mph NW

Humidity54%

Visibility—

Dew point41°

Thu, 1573° / 48°

73 °

Cornelius, Thursday, 15 October

Overcast. High 73°, low 48°.

Pressure30.21 inHg

Wind4.7 mph NW

Humidity65%

Visibility—

Dew point49°

Fri, 1673° / 52°

73 °

Cornelius, Friday, 16 October

Overcast. High 73°, low 52°.

Pressure30.24 inHg

Wind4.4 mph NW

Humidity35%

Visibility—

Dew point35°

Sat, 1769° / 52°

69 °

Cornelius, Saturday, 17 October

Overcast. High 69°, low 52°.

Pressure30.18 inHg

Wind5.6 mph NW

Humidity60%

Visibility—

Dew point47°

Sun, 1862° / 48°

62 °

Cornelius, Sunday, 18 October

Overcast. High 62°, low 48°.

Pressure30.12 inHg

Wind5.4 mph S

Humidity74%

Visibility—

Dew point47°

Mon, 1957° / 45°

0.06

57 °

Cornelius, Monday, 19 October

Light rain. High 57°, low 45°.

Pressure30.09 inHg

Wind5.7 mph SW

Humidity71%

Visibility—

Dew point43°

Tue, 2063° / 47°

63 °

Cornelius, Tuesday, 20 October

Light rain. High 63°, low 47°.

Pressure30.18 inHg

Wind6.7 mph W

Humidity63%

Visibility—

Dew point43°

Wed, 2154° / 45°

0.33

54 °

Cornelius, Wednesday, 21 October

Rain. High 54°, low 45°.

Pressure30.03 inHg

Wind7.3 mph S

Humidity94%

Visibility—

Dew point46°

Thu, 2257° / 43°

0.15

57 °

Cornelius, Thursday, 22 October

Light rain. High 57°, low 43°.

Pressure30.30 inHg

Wind4.2 mph S

Humidity78%

Visibility—

Dew point44°

Fri, 2357° / 42°

57 °

Cornelius, Friday, 23 October

Overcast. High 57°, low 42°.

Pressure30.42 inHg

Wind4.8 mph NW

Humidity76%

Visibility—

Dew point42°

Sat, 2465° / 45°

65 °

Cornelius, Saturday, 24 October

Overcast. High 65°, low 45°.

Pressure30.39 inHg

Wind7 mph NE

Humidity54%

Visibility—

Dew point39°

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

Sun, 2558° / 44°

0.21

58 °

Cornelius, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high58°

Average low44°

Average precipitation0.21 in

Chance of precipitation50%

Record high74° (1965)

Record low34° (2020)

Mon, 2658° / 44°

0.2

58 °

Cornelius, Monday, 26 October

Climate normal for this date — 60-year average.

Average high58°

Average low44°

Average precipitation0.2 in

Chance of precipitation53%

Record high72° (2003)

Record low29° (2020)

Tue, 2758° / 43°

0.21

58 °

Cornelius, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high58°

Average low43°

Average precipitation0.21 in

Chance of precipitation47%

Record high72° (1987)

Record low32° (1971)

Wed, 2856° / 43°

0.22

56 °

Cornelius, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high56°

Average low43°

Average precipitation0.22 in

Chance of precipitation58%

Record high73° (1987)

Record low27° (1971)

Thu, 2956° / 43°

0.15

56 °

Cornelius, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high56°

Average low43°

Average precipitation0.15 in

Chance of precipitation45%

Record high69° (1983)

Record low28° (2023)

Fri, 3056° / 43°

0.17

56 °

Cornelius, Friday, 30 October

Climate normal for this date — 60-year average.

Average high56°

Average low43°

Average precipitation0.17 in

Chance of precipitation43%

Record high65° (1993)

Record low28° (2023)

Sat, 3156° / 43°

0.22

56 °

Cornelius, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high56°

Average low43°

Average precipitation0.22 in

Chance of precipitation50%

Record high68° (1966)

Record low29° (2006)

Sun, 0156° / 43°

0.22

56 °

Cornelius, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high56°

Average low43°

Average precipitation0.22 in

Chance of precipitation48%

Record high67° (1962)

Record low28° (2003)

Mon, 0256° / 43°

0.17

56 °

Cornelius, Monday, 2 November

Climate normal for this date — 60-year average.

Average high56°

Average low43°

Average precipitation0.17 in

Chance of precipitation50%

Record high66° (1976)

Record low31° (1995)

Tue, 0356° / 43°

0.17

56 °

Cornelius, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high56°

Average low43°

Average precipitation0.17 in

Chance of precipitation47%

Record high66° (2010)

Record low28° (2003)

Wed, 0456° / 44°

0.27

56 °

Cornelius, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°

Average low44°

Average precipitation0.27 in

Chance of precipitation60%

Record high68° (1980)

Record low32° (2003)

Thu, 0554° / 43°

0.22

54 °

Cornelius, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high54°

Average low43°

Average precipitation0.22 in

Chance of precipitation67%

Record high64° (1987)

Record low26° (1971)

Fri, 0654° / 43°

0.27

54 °

Cornelius, Friday, 6 November

Climate normal for this date — 60-year average.

Average high54°

Average low43°

Average precipitation0.27 in

Chance of precipitation63%

Record high63° (1999)

Record low31° (2004)

Sat, 0754° / 42°

0.23

54 °

Cornelius, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high54°

Average low42°

Average precipitation0.23 in

Chance of precipitation53%

Record high64° (2016)

Record low33° (1973)

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 Cornelius, 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 Cornelius, 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.