As of 13:42 PDT

Weather in Sumner, OR

59°

Sumner, Wednesday, 7 October, 13:42

Clear. Feels like 58°. High 67°, low 50°.

Pressure30.00 inHg

Wind10.4 mph N

Humidity82%

Visibility6.2 mi

Dew point54°

See detailed hourly forecast

Monthly outlook for Sumner, OR: average high 67.1°, average low 45.8°. That is 2.1° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 22 October (79.1°), the coolest 15 October (39.9°).

67.1°/45.8°

Average high / low

+2.1°

Above normal

1 / 4

Wet days / normal

0.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 October – 16 October	64.6°	63.9°	+0.4°
17 October – 26 October	71.2°	61.4°	+5.5°
27 October – 5 November	at normal	58.5°	—

October records over 66 years

94.3°10 October 1991All-time high

34.9°28 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Bunker Hill (6 mi).

Thu, 0876° / 49°

76 °

Sumner, Thursday, 8 October

Partly cloudy. High 76°, low 49°.

Pressure29.97 inHg

Wind8.4 mph NW

Humidity68%

Visibility6.2 mi

Dew point55°

Fri, 0965° / 49°

0.01

65 °

Sumner, Friday, 9 October

Light rain. High 65°, low 49°.

Pressure29.94 inHg

Wind4.4 mph NW

Humidity67%

Visibility6.2 mi

Dew point53°

Sat, 1059° / 43°

0.01

59 °

Sumner, Saturday, 10 October

Light rain. High 59°, low 43°.

Pressure29.88 inHg

Wind8.4 mph NW

Humidity62%

Visibility6.2 mi

Dew point45°

Sun, 1164° / 45°

64 °

Sumner, Sunday, 11 October

Clear. High 64°, low 45°.

Pressure29.88 inHg

Wind10 mph NE

Humidity46%

Visibility6.2 mi

Dew point39°

Mon, 1265° / 45°

65 °

Sumner, Monday, 12 October

Clear. High 65°, low 45°.

Pressure29.94 inHg

Wind11.4 mph N

Humidity31%

Visibility—

Dew point31°

Tue, 1357° / 45°

0.07

57 °

Sumner, Tuesday, 13 October

Light rain. High 57°, low 45°.

Pressure30.00 inHg

Wind7.4 mph W

Humidity92%

Visibility—

Dew point49°

Wed, 1459° / 42°

59 °

Sumner, Wednesday, 14 October

Clear. High 59°, low 42°.

Pressure30.18 inHg

Wind9.7 mph NW

Humidity51%

Visibility—

Dew point39°

Thu, 1565° / 40°

65 °

Sumner, Thursday, 15 October

Clear. High 65°, low 40°.

Pressure30.24 inHg

Wind8.4 mph NE

Humidity31%

Visibility—

Dew point31°

Fri, 1668° / 41°

68 °

Sumner, Friday, 16 October

Clear. High 68°, low 41°.

Pressure30.12 inHg

Wind7.6 mph NE

Humidity19%

Visibility—

Dew point21°

Sat, 1769° / 41°

69 °

Sumner, Saturday, 17 October

Clear. High 69°, low 41°.

Pressure29.94 inHg

Wind7.2 mph NW

Humidity21%

Visibility—

Dew point24°

Sun, 1863° / 41°

63 °

Sumner, Sunday, 18 October

Overcast. High 63°, low 41°.

Pressure30.06 inHg

Wind6.6 mph W

Humidity31%

Visibility—

Dew point30°

Mon, 1970° / 46°

70 °

Sumner, Monday, 19 October

Overcast. High 70°, low 46°.

Pressure30.18 inHg

Wind5.8 mph W

Humidity40%

Visibility—

Dew point42°

Tue, 2069° / 51°

69 °

Sumner, Tuesday, 20 October

Overcast. High 69°, low 51°.

Pressure30.33 inHg

Wind5 mph NW

Humidity51%

Visibility—

Dew point48°

Wed, 2177° / 51°

77 °

Sumner, Wednesday, 21 October

Mostly clear. High 77°, low 51°.

Pressure30.24 inHg

Wind7.7 mph N

Humidity28%

Visibility—

Dew point38°

Thu, 2279° / 53°

79 °

Sumner, Thursday, 22 October

Overcast. High 79°, low 53°.

Pressure30.06 inHg

Wind6.6 mph N

Humidity29%

Visibility—

Dew point41°

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

Fri, 2361° / 49°

0.13

61 °

Sumner, Friday, 23 October

Climate normal for this date — 60-year average.

Average high61°

Average low49°

Average precipitation0.13 in

Chance of precipitation42%

Record high76° (1965)

Record low40° (2024)

Sat, 2461° / 49°

0.15

61 °

Sumner, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high61°

Average low49°

Average precipitation0.15 in

Chance of precipitation38%

Record high76° (1965)

Record low40° (2018)

Sun, 2560° / 48°

0.23

60 °

Sumner, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high60°

Average low48°

Average precipitation0.23 in

Chance of precipitation52%

Record high77° (1965)

Record low40° (2020)

Mon, 2660° / 49°

0.2

60 °

Sumner, Monday, 26 October

Climate normal for this date — 60-year average.

Average high60°

Average low49°

Average precipitation0.2 in

Chance of precipitation47%

Record high81° (2003)

Record low40° (1970)

Tue, 2760° / 48°

0.18

60 °

Sumner, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high60°

Average low48°

Average precipitation0.18 in

Chance of precipitation43%

Record high76° (1987)

Record low39° (1971)

Wed, 2858° / 48°

0.21

58 °

Sumner, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high58°

Average low48°

Average precipitation0.21 in

Chance of precipitation48%

Record high71° (1993)

Record low35° (1971)

Thu, 2958° / 48°

0.14

58 °

Sumner, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high58°

Average low48°

Average precipitation0.14 in

Chance of precipitation42%

Record high72° (1993)

Record low36° (1971)

Fri, 3059° / 47°

0.18

59 °

Sumner, Friday, 30 October

Climate normal for this date — 60-year average.

Average high59°

Average low47°

Average precipitation0.18 in

Chance of precipitation37%

Record high69° (1967)

Record low36° (1991)

Sat, 3159° / 47°

0.15

59 °

Sumner, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high59°

Average low47°

Average precipitation0.15 in

Chance of precipitation45%

Record high75° (1966)

Record low36° (2019)

Sun, 0159° / 47°

0.21

59 °

Sumner, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high59°

Average low47°

Average precipitation0.21 in

Chance of precipitation43%

Record high73° (1962)

Record low36° (2003)

Mon, 0259° / 47°

0.2

59 °

Sumner, Monday, 2 November

Climate normal for this date — 60-year average.

Average high59°

Average low47°

Average precipitation0.2 in

Chance of precipitation47%

Record high71° (2010)

Record low38° (2002)

Tue, 0359° / 48°

0.17

59 °

Sumner, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high59°

Average low48°

Average precipitation0.17 in

Chance of precipitation43%

Record high70° (1976)

Record low36° (2022)

Wed, 0457° / 48°

0.25

57 °

Sumner, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high57°

Average low48°

Average precipitation0.25 in

Chance of precipitation57%

Record high68° (1976)

Record low37° (2017)

Thu, 0557° / 47°

0.29

57 °

Sumner, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high57°

Average low47°

Average precipitation0.29 in

Chance of precipitation55%

Record high68° (2012)

Record low36° (1971)

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 Sumner, 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 Sumner, 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.