Monthly outlook for Sumpter, OR: average high 58.7°, average low 38.7°. That is 2.9° above the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 21 October (68.8°), the coolest 29 October (27°).
58.7°/38.7°
Average high / low
+2.9°
Above normal
1 / 5
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
62.5°
55.4°
+3.9°
24 October – 2 November
52.4°
48.8°
+2°
3 November – 12 November
at normal
43.7°
—
October records over 66 years
86.5°1 October 2010All-time high
-2.6°27 October 1970All-time low
Thu, 1560° / 34°0
60 °
Sumpter, Thursday, 15 October
Clear. High 60°, low 34°.
Pressure30.45 inHg
Wind4.3 mph S
Humidity31%
Visibility6.2 mi
Dew point21°
Fri, 1658° / 41°0
58 °
Sumpter, Friday, 16 October
Overcast. High 58°, low 41°.
Pressure30.42 inHg
Wind9.1 mph SE
Humidity41%
Visibility6.2 mi
Dew point26°
Sat, 1762° / 42°0
62 °
Sumpter, Saturday, 17 October
Overcast. High 62°, low 42°.
Pressure30.15 inHg
Wind3.8 mph SW
Humidity35%
Visibility6.2 mi
Dew point27°
Sun, 1859° / 41°0
59 °
Sumpter, Sunday, 18 October
Partly cloudy. High 59°, low 41°.
Pressure30.00 inHg
Wind6.1 mph S
Humidity42%
Visibility—
Dew point32°
Mon, 1954° / 42°0.01
54 °
Sumpter, Monday, 19 October
Light rain. High 54°, low 42°.
Pressure29.85 inHg
Wind6.8 mph S
Humidity54%
Visibility—
Dew point34°
Tue, 2067° / 46°0
67 °
Sumpter, Tuesday, 20 October
Overcast. High 67°, low 46°.
Pressure30.00 inHg
Wind4.7 mph E
Humidity26%
Visibility—
Dew point24°
Wed, 2169° / 46°0
69 °
Sumpter, Wednesday, 21 October
Partly cloudy. High 69°, low 46°.
Pressure29.94 inHg
Wind5.7 mph SE
Humidity21%
Visibility—
Dew point21°
Thu, 2269° / 44°0
69 °
Sumpter, Thursday, 22 October
Clear. High 69°, low 44°.
Pressure29.83 inHg
Wind6.5 mph NW
Humidity24%
Visibility—
Dew point25°
Fri, 2366° / 40°0
66 °
Sumpter, Friday, 23 October
Clear. High 66°, low 40°.
Pressure30.03 inHg
Wind6.5 mph NW
Humidity23%
Visibility—
Dew point19°
Sat, 2464° / 40°0
64 °
Sumpter, Saturday, 24 October
Clear. High 64°, low 40°.
Pressure30.18 inHg
Wind4.6 mph S
Humidity20%
Visibility—
Dew point15°
Sun, 2564° / 41°0
64 °
Sumpter, Sunday, 25 October
Mostly clear. High 64°, low 41°.
Pressure30.12 inHg
Wind4.5 mph S
Humidity23%
Visibility—
Dew point19°
Mon, 2648° / 38°0.01
48 °
Sumpter, Monday, 26 October
Light rain. High 48°, low 38°.
Pressure29.94 inHg
Wind7.3 mph W
Humidity56%
Visibility—
Dew point32°
Tue, 2751° / 30°0
51 °
Sumpter, Tuesday, 27 October
Overcast. High 51°, low 30°.
Pressure30.00 inHg
Wind5 mph NW
Humidity47%
Visibility—
Dew point23°
Wed, 2843° / 36°0.52
43 °
Sumpter, Wednesday, 28 October
Snow. High 43°, low 36°.
Pressure29.80 inHg
Wind8.7 mph W
Humidity94%
Visibility—
Dew point35°
Thu, 2944° / 27°0
44 °
Sumpter, Thursday, 29 October
Mostly clear. High 44°, low 27°.
Pressure29.83 inHg
Wind4.5 mph SW
Humidity68%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)
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.