As of 10:10 PDT

Weather in Shannon, OR

55°Current weather

Shannon, Saturday, 17 October, 10:10

Overcast. Feels like 54°. High 69°, low 48°.

Pressure30.24 inHg
Wind1.5 mph NW
Humidity86%
Visibility6.1 mi
Dew point51°

Monthly outlook for Shannon, OR: average high 58.2°, average low 42.7°. That is 1.5° below the climate normal for October. Precipitation is expected on 9 days (about 4.6 inches), against a normal of 7 days and 3.6 inches. The warmest day looks like 21 October (74.9°), the coolest 18 October (36.6°).

58.2°/42.7°
Average high / low
−1.5°
Below normal
9 / 7
Wet days / normal
4.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October62.9°62°+0.5°
27 October – 5 November50.4°58.5°-4.5°
6 November – 15 Novemberat normal55.8°—

October records over 66 years

93.9°2 October 1980All-time high
31.1°31 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Mapleton (13 mi).

Sun, 1868° / 37°0Partly cloudy
68 °Partly cloudy

Shannon, Sunday, 18 October

Partly cloudy. High 68°, low 37°.

Pressure30.06 inHg
Wind3.2 mph NE
Humidity44%
Visibility6.2 mi
Dew point38°
Mon, 1962° / 46°0.01Light rain
62 °Light rain

Shannon, Monday, 19 October

Light rain. High 62°, low 46°.

Pressure29.94 inHg
Wind0.3 mph E
Humidity53%
Visibility6.2 mi
Dew point39°
Tue, 2068° / 43°0Overcast
68 °Overcast

Shannon, Tuesday, 20 October

Overcast. High 68°, low 43°.

Pressure29.97 inHg
Wind4.8 mph NE
Humidity55%
Visibility6.2 mi
Dew point44°
Wed, 2175° / 46°0Clear
75 °Clear

Shannon, Wednesday, 21 October

Clear. High 75°, low 46°.

Pressure29.94 inHg
Wind7.8 mph NW
Humidity46%
Visibility—
Dew point41°
Thu, 2266° / 45°0Clear
66 °Clear

Shannon, Thursday, 22 October

Clear. High 66°, low 45°.

Pressure30.03 inHg
Wind9.3 mph NW
Humidity57%
Visibility—
Dew point41°
Fri, 2359° / 41°0.04Light rain
59 °Light rain

Shannon, Friday, 23 October

Light rain. High 59°, low 41°.

Pressure30.09 inHg
Wind6.3 mph SW
Humidity61%
Visibility—
Dew point40°
Sat, 2454° / 44°1.25Heavy rain
54 °Heavy rain

Shannon, Saturday, 24 October

Heavy rain. High 54°, low 44°.

Pressure29.88 inHg
Wind12.5 mph SW
Humidity94%
Visibility—
Dew point50°
Sun, 2554° / 42°0.05Light rain
54 °Light rain

Shannon, Sunday, 25 October

Light rain. High 54°, low 42°.

Pressure30.06 inHg
Wind8.7 mph SW
Humidity87%
Visibility—
Dew point46°
Mon, 2654° / 47°0.73Heavy rain
54 °Heavy rain

Shannon, Monday, 26 October

Heavy rain. High 54°, low 47°.

Pressure29.97 inHg
Wind16.4 mph W
Humidity96%
Visibility—
Dew point47°
Tue, 2753° / 41°0.11Light rain
53 °Light rain

Shannon, Tuesday, 27 October

Light rain. High 53°, low 41°.

Pressure30.09 inHg
Wind11.2 mph W
Humidity83%
Visibility—
Dew point45°
Wed, 2850° / 40°1.02Rain
50 °Rain

Shannon, Wednesday, 28 October

Rain. High 50°, low 40°.

Pressure30.09 inHg
Wind12.3 mph W
Humidity87%
Visibility—
Dew point41°
Thu, 2950° / 42°0.35Light rain
50 °Light rain

Shannon, Thursday, 29 October

Light rain. High 50°, low 42°.

Pressure29.97 inHg
Wind10.9 mph W
Humidity91%
Visibility—
Dew point45°
Fri, 3051° / 40°0.12Light rain
51 °Light rain

Shannon, Friday, 30 October

Light rain. High 51°, low 40°.

Pressure30.06 inHg
Wind9.1 mph S
Humidity84%
Visibility—
Dew point43°
Sat, 3149° / 40°0.69Rain
49 °Rain

Shannon, Saturday, 31 October

Rain. High 49°, low 40°.

Pressure29.65 inHg
Wind9.6 mph W
Humidity97%
Visibility—
Dew point47°
Sun, 0150° / 41°0.19Light rain
50 °Light rain

Shannon, Sunday, 1 November

Light rain. High 50°, low 41°.

Pressure29.62 inHg
Wind8.4 mph NE
Humidity93%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0259° / 46°0.26Climate normal
59 °Climate normal

Shannon, Monday, 2 November

Climate normal for this date — 60-year average.

Average high59°
Average low46°
Average precipitation0.26 in
Chance of precipitation42%
Record high70° (1976)
Record low37° (2002)
Tue, 0359° / 47°0.22Climate normal
59 °Climate normal

Shannon, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high59°
Average low47°
Average precipitation0.22 in
Chance of precipitation45%
Record high72° (1976)
Record low34° (1973)
Wed, 0458° / 47°0.37Climate normal
58 °Climate normal

Shannon, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high58°
Average low47°
Average precipitation0.37 in
Chance of precipitation63%
Record high70° (1976)
Record low37° (2011)
Thu, 0557° / 46°0.37Climate normal
57 °Climate normal

Shannon, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high57°
Average low46°
Average precipitation0.37 in
Chance of precipitation62%
Record high67° (1987)
Record low34° (1971)
Fri, 0657° / 47°0.31Climate normal
57 °Climate normal

Shannon, Friday, 6 November

Climate normal for this date — 60-year average.

Average high57°
Average low47°
Average precipitation0.31 in
Chance of precipitation67%
Record high67° (1999)
Record low36° (1971)
Sat, 0756° / 46°0.33Climate normal
56 °Climate normal

Shannon, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high56°
Average low46°
Average precipitation0.33 in
Chance of precipitation58%
Record high67° (1991)
Record low37° (2022)
Sun, 0855° / 44°0.3Climate normal
55 °Climate normal

Shannon, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high55°
Average low44°
Average precipitation0.3 in
Chance of precipitation48%
Record high69° (1976)
Record low34° (2020)
Mon, 0955° / 45°0.3Climate normal
55 °Climate normal

Shannon, Monday, 9 November

Climate normal for this date — 60-year average.

Average high55°
Average low45°
Average precipitation0.3 in
Chance of precipitation52%
Record high68° (2025)
Record low29° (2022)
Tue, 1056° / 44°0.3Climate normal
56 °Climate normal

Shannon, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high56°
Average low44°
Average precipitation0.3 in
Chance of precipitation48%
Record high66° (1996)
Record low31° (1985)
Wed, 1156° / 45°0.34Climate normal
56 °Climate normal

Shannon, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high56°
Average low45°
Average precipitation0.34 in
Chance of precipitation58%
Record high66° (2019)
Record low30° (1985)
Thu, 1256° / 45°0.27Climate normal
56 °Climate normal

Shannon, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high56°
Average low45°
Average precipitation0.27 in
Chance of precipitation57%
Record high69° (1967)
Record low29° (1985)
Fri, 1356° / 45°0.39Climate normal
56 °Climate normal

Shannon, Friday, 13 November

Climate normal for this date — 60-year average.

Average high56°
Average low45°
Average precipitation0.39 in
Chance of precipitation60%
Record high67° (2021)
Record low29° (1978)
Sat, 1456° / 44°0.23Climate normal
56 °Climate normal

Shannon, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high56°
Average low44°
Average precipitation0.23 in
Chance of precipitation48%
Record high69° (1999)
Record low29° (1978)
Sun, 1555° / 45°0.35Climate normal
55 °Climate normal

Shannon, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high55°
Average low45°
Average precipitation0.35 in
Chance of precipitation53%
Record high64° (2025)
Record low32° (1978)

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 Shannon, 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 Shannon, 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.