Monthly outlook for Seneca, OR: average high 56.4°, average low 34.5°. That is 0.6° below the climate normal for October. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 8 October (80.9°), the coolest 12 October (26.5°).
56.4°/34.5°
Average high / low
−0.6°
Below normal
5 / 4
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
55.4°
58.6°
-1.8°
18 October – 27 October
58.2°
54.3°
+2.1°
28 October – 6 November
at normal
47.8°
—
October records over 66 years
86°1 October 2010All-time high
-1.3°29 October 1971All-time low
Fri, 0971° / 42°0.04
71 °
Seneca, Friday, 9 October
Light rain. High 71°, low 42°.
Pressure29.74 inHg
Wind6.2 mph W
Humidity26%
Visibility6.2 mi
Dew point28°
Sat, 1044° / 30°0.07
44 °
Seneca, Saturday, 10 October
Rain. High 44°, low 30°.
Pressure29.77 inHg
Wind8.5 mph N
Humidity63%
Visibility6.2 mi
Dew point23°
Sun, 1137° / 29°0
37 °
Seneca, Sunday, 11 October
Overcast. High 37°, low 29°.
Pressure29.88 inHg
Wind13.5 mph N
Humidity86%
Visibility6.2 mi
Dew point28°
Mon, 1246° / 27°0
46 °
Seneca, Monday, 12 October
Clear. High 46°, low 27°.
Pressure30.03 inHg
Wind7.9 mph N
Humidity73%
Visibility—
Dew point28°
Tue, 1355° / 31°0
55 °
Seneca, Tuesday, 13 October
Light rain. High 55°, low 31°.
Pressure29.94 inHg
Wind13.1 mph NW
Humidity56%
Visibility—
Dew point29°
Wed, 1445° / 32°0.03
45 °
Seneca, Wednesday, 14 October
Light snow. High 45°, low 32°.
Pressure29.88 inHg
Wind20.3 mph NW
Humidity60%
Visibility—
Dew point25°
Thu, 1549° / 27°0
49 °
Seneca, Thursday, 15 October
Mostly clear. High 49°, low 27°.
Pressure30.27 inHg
Wind8.5 mph N
Humidity57%
Visibility—
Dew point26°
Fri, 1660° / 31°0
60 °
Seneca, Friday, 16 October
Clear. High 60°, low 31°.
Pressure30.33 inHg
Wind5.4 mph S
Humidity31%
Visibility—
Dew point20°
Sat, 1765° / 34°0
65 °
Seneca, Saturday, 17 October
Mostly clear. High 65°, low 34°.
Pressure30.24 inHg
Wind6.7 mph N
Humidity19%
Visibility—
Dew point13°
Sun, 1868° / 40°0
68 °
Seneca, Sunday, 18 October
Partly cloudy. High 68°, low 40°.
Pressure30.12 inHg
Wind5.5 mph N
Humidity19%
Visibility—
Dew point16°
Mon, 1969° / 40°0
69 °
Seneca, Monday, 19 October
Clear. High 69°, low 40°.
Pressure30.09 inHg
Wind4.7 mph S
Humidity20%
Visibility—
Dew point19°
Tue, 2070° / 44°0
70 °
Seneca, Tuesday, 20 October
Overcast. High 70°, low 44°.
Pressure30.06 inHg
Wind8.7 mph SW
Humidity18%
Visibility—
Dew point16°
Wed, 2153° / 33°0.17
53 °
Seneca, Wednesday, 21 October
Light rain. High 53°, low 33°.
Pressure29.77 inHg
Wind19.1 mph SW
Humidity90%
Visibility—
Dew point45°
Thu, 2247° / 35°0.65
47 °
Seneca, Thursday, 22 October
Snow. High 47°, low 35°.
Pressure29.44 inHg
Wind16.4 mph W
Humidity89%
Visibility—
Dew point42°
Fri, 2343° / 33°0.07
43 °
Seneca, Friday, 23 October
Snow. High 43°, low 33°.
Pressure29.77 inHg
Wind13 mph W
Humidity63%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2454° / 35°0.06
54 °
Seneca, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high54°
Average low35°
Average precipitation0.06 in
Chance of precipitation27%
Record high69° (1965)
Record low22° (2024)
Sun, 2553° / 35°0.08
53 °
Seneca, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high53°
Average low35°
Average precipitation0.08 in
Chance of precipitation37%
Record high71° (1988)
Record low17° (2020)
Mon, 2652° / 34°0.08
52 °
Seneca, Monday, 26 October
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.08 in
Chance of precipitation37%
Record high70° (2003)
Record low19° (2020)
Tue, 2751° / 32°0.06
51 °
Seneca, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.06 in
Chance of precipitation32%
Record high70° (2003)
Record low6° (1970)
Wed, 2849° / 33°0.09
49 °
Seneca, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.09 in
Chance of precipitation42%
Record high69° (1987)
Record low9° (1971)
Thu, 2948° / 32°0.08
48 °
Seneca, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.08 in
Chance of precipitation42%
Record high67° (2020)
Record low-1° (1971)
Fri, 3048° / 31°0.05
48 °
Seneca, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.05 in
Chance of precipitation33%
Record high65° (2008)
Record low0° (1991)
Sat, 3148° / 32°0.05
48 °
Seneca, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.05 in
Chance of precipitation28%
Record high68° (1988)
Record low13° (2002)
Sun, 0148° / 32°0.09
48 °
Seneca, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.09 in
Chance of precipitation40%
Record high65° (1965)
Record low13° (1984)
Mon, 0247° / 31°0.06
47 °
Seneca, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.06 in
Chance of precipitation35%
Record high64° (1962)
Record low15° (1971)
Tue, 0348° / 31°0.04
48 °
Seneca, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation27%
Record high65° (2020)
Record low15° (1994)
Wed, 0447° / 32°0.09
47 °
Seneca, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.09 in
Chance of precipitation48%
Record high64° (1980)
Record low16° (2004)
Thu, 0547° / 31°0.09
47 °
Seneca, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.09 in
Chance of precipitation37%
Record high65° (2020)
Record low13° (1971)
Fri, 0646° / 32°0.09
46 °
Seneca, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.09 in
Chance of precipitation45%
Record high63° (2012)
Record low11° (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 Seneca, 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 Seneca, 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.