Monthly outlook for Sumpter, OR: average high 50.1°, average low 31.9°. That is 0.5° below the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 19 October (64.3°), the coolest 30 October (21.4°).
50.1°/31.9°
Average high / low
−0.5°
Below normal
4 / 5
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
53.1°
53.2°
-0.1°
28 October – 6 November
45.1°
46.6°
-0.8°
7 November – 16 November
at normal
41.7°
—
October records over 66 years
86.5°1 October 2010All-time high
-2.6°27 October 1970All-time low
Mon, 1964° / 37°0
64 °
Sumpter, Monday, 19 October
Overcast. High 64°, low 37°.
Pressure29.88 inHg
Wind6.2 mph S
Humidity38%
Visibility6.2 mi
Dew point24°
Tue, 2058° / 41°0
58 °
Sumpter, Tuesday, 20 October
Overcast. High 58°, low 41°.
Pressure30.00 inHg
Wind7 mph SE
Humidity46%
Visibility6.2 mi
Dew point35°
Wed, 2158° / 46°0
58 °
Sumpter, Wednesday, 21 October
Overcast. High 58°, low 46°.
Pressure30.00 inHg
Wind8.1 mph SE
Humidity65%
Visibility6.2 mi
Dew point43°
Thu, 2246° / 35°0.91
46 °
Sumpter, Thursday, 22 October
Snow. High 46°, low 35°.
Pressure29.80 inHg
Wind12.1 mph NW
Humidity96%
Visibility—
Dew point45°
Fri, 2338° / 27°0.01
38 °
Sumpter, Friday, 23 October
Light snow. High 38°, low 27°.
Pressure30.24 inHg
Wind12.5 mph NW
Humidity93%
Visibility—
Dew point30°
Sat, 2456° / 32°0
56 °
Sumpter, Saturday, 24 October
Overcast. High 56°, low 32°.
Pressure30.27 inHg
Wind4.5 mph S
Humidity18%
Visibility—
Dew point6°
Sun, 2558° / 38°0
58 °
Sumpter, Sunday, 25 October
Overcast. High 58°, low 38°.
Pressure30.09 inHg
Wind4.5 mph N
Humidity26%
Visibility—
Dew point17°
Mon, 2647° / 29°0.02
47 °
Sumpter, Monday, 26 October
Light rain. High 47°, low 29°.
Pressure29.91 inHg
Wind6.6 mph NW
Humidity58%
Visibility—
Dew point28°
Tue, 2744° / 28°0
44 °
Sumpter, Tuesday, 27 October
Overcast. High 44°, low 28°.
Pressure30.03 inHg
Wind6.3 mph W
Humidity57%
Visibility—
Dew point24°
Wed, 2854° / 30°0
54 °
Sumpter, Wednesday, 28 October
Clear. High 54°, low 30°.
Pressure29.94 inHg
Wind6.7 mph SW
Humidity32%
Visibility—
Dew point16°
Thu, 2937° / 23°0.07
37 °
Sumpter, Thursday, 29 October
Snow. High 37°, low 23°.
Pressure29.94 inHg
Wind12.7 mph NW
Humidity60%
Visibility—
Dew point23°
Fri, 3043° / 21°0
43 °
Sumpter, Friday, 30 October
Mostly clear. High 43°, low 21°.
Pressure30.27 inHg
Wind5.4 mph NW
Humidity35%
Visibility—
Dew point10°
Sat, 3147° / 25°0
47 °
Sumpter, Saturday, 31 October
Clear. High 47°, low 25°.
Pressure30.12 inHg
Wind4.3 mph S
Humidity34%
Visibility—
Dew point14°
Sun, 0142° / 32°0.59
42 °
Sumpter, Sunday, 1 November
Snow. High 42°, low 32°.
Pressure29.94 inHg
Wind8.3 mph SE
Humidity31%
Visibility—
Dew point13°
Mon, 0247° / 35°0.06
47 °
Sumpter, Monday, 2 November
Light rain. High 47°, low 35°.
Pressure29.94 inHg
Wind10.8 mph SW
Humidity99%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0347° / 31°0.05
47 °
Sumpter, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.05 in
Chance of precipitation28%
Record high61° (1962)
Record low11° (1994)
Wed, 0446° / 31°0.12
46 °
Sumpter, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.12 in
Chance of precipitation45%
Record high60° (1980)
Record low14° (2017)
Thu, 0545° / 31°0.09
45 °
Sumpter, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.09 in
Chance of precipitation37%
Record high64° (2020)
Record low2° (1971)
Fri, 0645° / 31°0.09
45 °
Sumpter, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.09 in
Chance of precipitation45%
Record high60° (2012)
Record low17° (1971)
Sat, 0744° / 30°0.11
44 °
Sumpter, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.11 in
Chance of precipitation48%
Record high60° (1976)
Record low10° (2017)
Sun, 0843° / 29°0.08
43 °
Sumpter, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.08 in
Chance of precipitation42%
Record high60° (1976)
Record low1° (1994)
Mon, 0942° / 29°0.09
42 °
Sumpter, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.09 in
Chance of precipitation47%
Record high61° (2016)
Record low15° (1986)
Tue, 1042° / 28°0.08
42 °
Sumpter, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.08 in
Chance of precipitation38%
Record high59° (2016)
Record low-2° (1986)
Wed, 1142° / 28°0.07
42 °
Sumpter, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.07 in
Chance of precipitation33%
Record high58° (2016)
Record low6° (2000)
Thu, 1242° / 29°0.09
42 °
Sumpter, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.09 in
Chance of precipitation38%
Record high62° (1999)
Record low2° (1985)
Fri, 1341° / 28°0.12
41 °
Sumpter, Friday, 13 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.12 in
Chance of precipitation50%
Record high62° (1999)
Record low6° (1985)
Sat, 1441° / 27°0.07
41 °
Sumpter, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.07 in
Chance of precipitation42%
Record high58° (1999)
Record low8° (1985)
Sun, 1541° / 27°0.07
41 °
Sumpter, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.07 in
Chance of precipitation37%
Record high54° (2021)
Record low-3° (2014)
Mon, 1640° / 27°0.09
40 °
Sumpter, Monday, 16 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.09 in
Chance of precipitation52%
Record high54° (1995)
Record low-8° (2014)
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 Sumpter, 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 Sumpter, 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.