Monthly outlook for Jefferson, OR: average high 64.9°, average low 45.2°. That is 1.9° above the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 7 days and 3.0 inches. The warmest day looks like 15 October (76.3°), the coolest 13 October (38°).
64.9°/45.2°
Average high / low
+1.9°
Above normal
3 / 7
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
65.3°
62.6°
+1.5°
22 October – 31 October
64.2°
58.2°
+3.3°
1 November – 10 November
at normal
55°
—
October records over 66 years
89.4°2 October 1980All-time high
25°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Scio (8 mi).
Tue, 1366° / 38°0
66 °
Jefferson, Tuesday, 13 October
Partly cloudy. High 66°, low 38°.
Pressure30.21 inHg
Wind0.2 mph SE
Humidity64%
Visibility0.8 mi
Dew point45°
Wed, 1468° / 44°0
68 °
Jefferson, Wednesday, 14 October
Mostly clear. High 68°, low 44°.
Pressure30.30 inHg
Wind5.7 mph N
Humidity54%
Visibility6.2 mi
Dew point46°
Thu, 1576° / 50°0
76 °
Jefferson, Thursday, 15 October
Clear. High 76°, low 50°.
Pressure30.24 inHg
Wind5.2 mph N
Humidity55%
Visibility6.2 mi
Dew point50°
Fri, 1674° / 49°0
74 °
Jefferson, Friday, 16 October
Clear. High 74°, low 49°.
Pressure30.15 inHg
Wind1.9 mph SE
Humidity53%
Visibility6.2 mi
Dew point48°
Sat, 1765° / 50°0.02
65 °
Jefferson, Saturday, 17 October
Light rain. High 65°, low 50°.
Pressure30.18 inHg
Wind7 mph NW
Humidity89%
Visibility—
Dew point53°
Sun, 1866° / 46°0
66 °
Jefferson, Sunday, 18 October
Mostly clear. High 66°, low 46°.
Pressure30.00 inHg
Wind7.5 mph N
Humidity76%
Visibility—
Dew point47°
Mon, 1958° / 49°0.76
58 °
Jefferson, Monday, 19 October
Rain. High 58°, low 49°.
Pressure29.83 inHg
Wind10.9 mph SW
Humidity88%
Visibility—
Dew point48°
Tue, 2057° / 46°0.2
57 °
Jefferson, Tuesday, 20 October
Light rain. High 57°, low 46°.
Pressure30.00 inHg
Wind9 mph S
Humidity82%
Visibility—
Dew point46°
Wed, 2159° / 41°0
59 °
Jefferson, Wednesday, 21 October
Clear. High 59°, low 41°.
Pressure30.15 inHg
Wind6.5 mph S
Humidity77%
Visibility—
Dew point43°
Thu, 2259° / 46°0.33
59 °
Jefferson, Thursday, 22 October
Rain. High 59°, low 46°.
Pressure30.15 inHg
Wind10.5 mph S
Humidity83%
Visibility—
Dew point50°
Fri, 2361° / 44°0
61 °
Jefferson, Friday, 23 October
Partly cloudy. High 61°, low 44°.
Pressure30.47 inHg
Wind6.7 mph N
Humidity73%
Visibility—
Dew point44°
Sat, 2463° / 43°0
63 °
Jefferson, Saturday, 24 October
Overcast. High 63°, low 43°.
Pressure30.50 inHg
Wind6.7 mph N
Humidity62%
Visibility—
Dew point40°
Sun, 2566° / 46°0
66 °
Jefferson, Sunday, 25 October
Overcast. High 66°, low 46°.
Pressure30.45 inHg
Wind12.2 mph N
Humidity58%
Visibility—
Dew point42°
Mon, 2669° / 46°0
69 °
Jefferson, Monday, 26 October
Mostly clear. High 69°, low 46°.
Pressure30.24 inHg
Wind6 mph N
Humidity53%
Visibility—
Dew point40°
Tue, 2769° / 47°0
69 °
Jefferson, Tuesday, 27 October
Clear. High 69°, low 47°.
Pressure30.24 inHg
Wind4.9 mph N
Humidity52%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2857° / 42°0.3
57 °
Jefferson, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.3 in
Chance of precipitation58%
Record high71° (1987)
Record low26° (1971)
Thu, 2957° / 42°0.21
57 °
Jefferson, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.21 in
Chance of precipitation55%
Record high69° (1962)
Record low25° (1971)
Fri, 3056° / 42°0.24
56 °
Jefferson, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.24 in
Chance of precipitation43%
Record high68° (1967)
Record low26° (2019)
Sat, 3156° / 42°0.3
56 °
Jefferson, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.3 in
Chance of precipitation52%
Record high71° (1966)
Record low25° (2002)
Sun, 0156° / 42°0.29
56 °
Jefferson, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.29 in
Chance of precipitation55%
Record high70° (1962)
Record low26° (2002)
Mon, 0257° / 42°0.22
57 °
Jefferson, Monday, 2 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.22 in
Chance of precipitation50%
Record high68° (1976)
Record low28° (1973)
Tue, 0357° / 42°0.2
57 °
Jefferson, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.2 in
Chance of precipitation47%
Record high69° (2010)
Record low27° (1994)
Wed, 0456° / 43°0.35
56 °
Jefferson, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.35 in
Chance of precipitation58%
Record high69° (1980)
Record low31° (1968)
Thu, 0555° / 42°0.31
55 °
Jefferson, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.31 in
Chance of precipitation67%
Record high67° (1980)
Record low25° (1971)
Fri, 0655° / 42°0.36
55 °
Jefferson, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.36 in
Chance of precipitation68%
Record high68° (1999)
Record low27° (1971)
Sat, 0755° / 42°0.34
55 °
Jefferson, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.34 in
Chance of precipitation60%
Record high68° (1991)
Record low31° (2017)
Sun, 0853° / 40°0.3
53 °
Jefferson, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.3 in
Chance of precipitation55%
Record high67° (1976)
Record low30° (2020)
Mon, 0953° / 40°0.22
53 °
Jefferson, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.22 in
Chance of precipitation60%
Record high63° (1976)
Record low25° (2020)
Tue, 1054° / 40°0.22
54 °
Jefferson, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.22 in
Chance of precipitation48%
Record high64° (2016)
Record low26° (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 Jefferson, 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 Jefferson, 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.