Monthly outlook for Sumpter, OR: average high 54.8°, average low 36.1°. That is 0.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 23 October (65.2°), the coolest 13 October (26.3°).
54.8°/36.1°
Average high / low
+0.1°
Above normal
3 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
54.8°
56.3°
-0.8°
22 October – 31 October
54.7°
50.1°
+2.6°
1 November – 10 November
at normal
44.6°
—
October records over 66 years
86.5°1 October 2010All-time high
-2.6°27 October 1970All-time low
Tue, 1350° / 26°0
50 °
Sumpter, Tuesday, 13 October
Partly cloudy. High 50°, low 26°.
Pressure30.09 inHg
Wind6.1 mph N
Humidity50%
Visibility6.2 mi
Dew point22°
Wed, 1456° / 33°0
56 °
Sumpter, Wednesday, 14 October
Clear. High 56°, low 33°.
Pressure30.21 inHg
Wind4.3 mph NW
Humidity46%
Visibility6.2 mi
Dew point33°
Thu, 1559° / 38°0
59 °
Sumpter, Thursday, 15 October
Clear. High 59°, low 38°.
Pressure30.45 inHg
Wind6.6 mph SE
Humidity38%
Visibility6.2 mi
Dew point29°
Fri, 1659° / 45°0
59 °
Sumpter, Friday, 16 October
Clear. High 59°, low 45°.
Pressure30.36 inHg
Wind9.1 mph SE
Humidity44%
Visibility6.2 mi
Dew point33°
Sat, 1762° / 45°0
62 °
Sumpter, Saturday, 17 October
Partly cloudy. High 62°, low 45°.
Pressure30.09 inHg
Wind5.6 mph SW
Humidity38%
Visibility—
Dew point31°
Sun, 1865° / 44°0
65 °
Sumpter, Sunday, 18 October
Clear. High 65°, low 44°.
Pressure29.97 inHg
Wind4.7 mph SE
Humidity26%
Visibility—
Dew point23°
Mon, 1963° / 38°0
63 °
Sumpter, Monday, 19 October
Overcast. High 63°, low 38°.
Pressure29.77 inHg
Wind15.2 mph SW
Humidity40%
Visibility—
Dew point32°
Tue, 2045° / 34°0.06
45 °
Sumpter, Tuesday, 20 October
Light rain. High 45°, low 34°.
Pressure29.83 inHg
Wind7.1 mph N
Humidity65%
Visibility—
Dew point33°
Wed, 2145° / 31°0
45 °
Sumpter, Wednesday, 21 October
Overcast. High 45°, low 31°.
Pressure29.91 inHg
Wind10.7 mph N
Humidity54%
Visibility—
Dew point27°
Thu, 2254° / 30°0
54 °
Sumpter, Thursday, 22 October
Clear. High 54°, low 30°.
Pressure30.03 inHg
Wind7.5 mph N
Humidity32%
Visibility—
Dew point18°
Fri, 2365° / 37°0
65 °
Sumpter, Friday, 23 October
Mostly clear. High 65°, low 37°.
Pressure30.12 inHg
Wind4.9 mph NW
Humidity38%
Visibility—
Dew point31°
Sat, 2454° / 41°0.11
54 °
Sumpter, Saturday, 24 October
Light rain. High 54°, low 41°.
Pressure30.09 inHg
Wind7.2 mph NW
Humidity40%
Visibility—
Dew point29°
Sun, 2556° / 37°0
56 °
Sumpter, Sunday, 25 October
Overcast. High 56°, low 37°.
Pressure30.21 inHg
Wind5.3 mph NW
Humidity61%
Visibility—
Dew point36°
Mon, 2649° / 39°0.07
49 °
Sumpter, Monday, 26 October
Light rain. High 49°, low 39°.
Pressure30.18 inHg
Wind7 mph NW
Humidity80%
Visibility—
Dew point41°
Tue, 2750° / 31°0
50 °
Sumpter, Tuesday, 27 October
Partly cloudy. High 50°, low 31°.
Pressure30.18 inHg
Wind7.9 mph NW
Humidity45%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2848° / 33°0.08
48 °
Sumpter, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.08 in
Chance of precipitation40%
Record high67° (1987)
Record low6° (1975)
Thu, 2948° / 32°0.07
48 °
Sumpter, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.07 in
Chance of precipitation38%
Record high67° (1987)
Record low-1° (1971)
Fri, 3047° / 31°0.06
47 °
Sumpter, Friday, 30 October
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.06 in
Chance of precipitation30%
Record high65° (1962)
Record low5° (1991)
Sat, 3147° / 32°0.07
47 °
Sumpter, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.07 in
Chance of precipitation35%
Record high66° (1988)
Record low14° (2002)
Sun, 0147° / 32°0.09
47 °
Sumpter, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.09 in
Chance of precipitation42%
Record high64° (1962)
Record low17° (1984)
Mon, 0246° / 31°0.06
46 °
Sumpter, Monday, 2 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.06 in
Chance of precipitation38%
Record high65° (1962)
Record low8° (1982)
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)
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.