Monthly outlook for Deer Island, OR: average high 49.7°, average low 40.3°. That is 0.5° above the climate normal for November. Precipitation is expected on 10 days (about 1.8 inches), against a normal of 10 days and 4.2 inches. The warmest day looks like 14 November (56.6°), the coolest 20 November (34.1°).
49.7°/40.3°
Average high / low
+0.5°
Above normal
10 / 10
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 November – 23 November
50.6°
49.7°
+0.5°
24 November – 3 December
48.1°
47°
+0.6°
4 December – 13 December
at normal
45.5°
—
November records over 66 years
69.8°4 November 1980All-time high
3.9°23 November 1985All-time low
Climate normals and records are computed from the nearest reference point — Prescott (8 mi).
Sun, 1553° / 43°0.38
53 °
Deer Island, Sunday, 15 November
Rain. High 53°, low 43°.
Pressure29.88 inHg
Wind7.8 mph S
Humidity89%
Visibility5.2 mi
Dew point48°
Mon, 1650° / 39°0.02
50 °
Deer Island, Monday, 16 November
Light rain. High 50°, low 39°.
Pressure30.12 inHg
Wind5.6 mph S
Humidity76%
Visibility6.2 mi
Dew point42°
Tue, 1748° / 38°0
48 °
Deer Island, Tuesday, 17 November
Light rain. High 48°, low 38°.
Pressure29.94 inHg
Wind9.4 mph SE
Humidity78%
Visibility6.2 mi
Dew point41°
Wed, 1852° / 37°0.07
52 °
Deer Island, Wednesday, 18 November
Light rain. High 52°, low 37°.
Pressure29.83 inHg
Wind10 mph SE
Humidity76%
Visibility—
Dew point38°
Thu, 1950° / 34°0
50 °
Deer Island, Thursday, 19 November
Clear. High 50°, low 34°.
Pressure30.09 inHg
Wind5 mph NW
Humidity84%
Visibility—
Dew point36°
Fri, 2049° / 34°0
49 °
Deer Island, Friday, 20 November
Clear. High 49°, low 34°.
Pressure29.94 inHg
Wind4.9 mph S
Humidity80%
Visibility—
Dew point37°
Sat, 2143° / 38°0.16
43 °
Deer Island, Saturday, 21 November
Light rain. High 43°, low 38°.
Pressure30.09 inHg
Wind5.7 mph SE
Humidity95%
Visibility—
Dew point40°
Sun, 2249° / 40°0
49 °
Deer Island, Sunday, 22 November
Overcast. High 49°, low 40°.
Pressure29.85 inHg
Wind6.1 mph SE
Humidity87%
Visibility—
Dew point41°
Mon, 2356° / 42°0.06
56 °
Deer Island, Monday, 23 November
Light rain. High 56°, low 42°.
Pressure29.88 inHg
Wind6.2 mph SE
Humidity83%
Visibility—
Dew point44°
Tue, 2454° / 47°0.25
54 °
Deer Island, Tuesday, 24 November
Light rain. High 54°, low 47°.
Pressure29.68 inHg
Wind11 mph SE
Humidity84%
Visibility—
Dew point47°
Wed, 2549° / 44°0.22
49 °
Deer Island, Wednesday, 25 November
Light rain. High 49°, low 44°.
Pressure29.68 inHg
Wind12.5 mph S
Humidity79%
Visibility—
Dew point42°
Thu, 2644° / 41°0.09
44 °
Deer Island, Thursday, 26 November
Light rain. High 44°, low 41°.
Pressure30.12 inHg
Wind4.5 mph SE
Humidity96%
Visibility—
Dew point41°
Fri, 2749° / 40°0.13
49 °
Deer Island, Friday, 27 November
Light rain. High 49°, low 40°.
Pressure30.45 inHg
Wind3.6 mph SE
Humidity95%
Visibility—
Dew point45°
Sat, 2846° / 36°0
46 °
Deer Island, Saturday, 28 November
Overcast. High 46°, low 36°.
Pressure30.36 inHg
Wind5.6 mph S
Humidity85%
Visibility—
Dew point37°
Sun, 2947° / 43°0.25
47 °
Deer Island, Sunday, 29 November
Light rain. High 47°, low 43°.
Pressure30.18 inHg
Wind9.3 mph SE
Humidity69%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 3047° / 36°0.3
47 °
Deer Island, Monday, 30 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.3 in
Chance of precipitation63%
Record high59° (2008)
Record low6° (1985)
Tue, 0146° / 37°0.28
46 °
Deer Island, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.28 in
Chance of precipitation65%
Record high57° (2021)
Record low19° (1985)
Wed, 0247° / 37°0.34
47 °
Deer Island, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.34 in
Chance of precipitation62%
Record high55° (1975)
Record low22° (1985)
Thu, 0347° / 37°0.31
47 °
Deer Island, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.31 in
Chance of precipitation58%
Record high56° (1979)
Record low25° (1994)
Fri, 0446° / 36°0.29
46 °
Deer Island, Friday, 4 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.29 in
Chance of precipitation57%
Record high58° (2023)
Record low22° (1994)
Sat, 0546° / 36°0.22
46 °
Deer Island, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.22 in
Chance of precipitation48%
Record high58° (2023)
Record low23° (1972)
Sun, 0646° / 36°0.28
46 °
Deer Island, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.28 in
Chance of precipitation55%
Record high55° (2023)
Record low20° (1972)
Mon, 0745° / 36°0.23
45 °
Deer Island, Monday, 7 December
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.23 in
Chance of precipitation52%
Record high57° (2025)
Record low12° (1972)
Tue, 0846° / 36°0.24
46 °
Deer Island, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.24 in
Chance of precipitation58%
Record high58° (1962)
Record low4° (1972)
Wed, 0945° / 35°0.3
45 °
Deer Island, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.3 in
Chance of precipitation62%
Record high56° (2014)
Record low8° (1972)
Thu, 1046° / 37°0.34
46 °
Deer Island, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.34 in
Chance of precipitation67%
Record high58° (1993)
Record low8° (1972)
Fri, 1146° / 37°0.31
46 °
Deer Island, Friday, 11 December
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.31 in
Chance of precipitation70%
Record high58° (2025)
Record low18° (1972)
Sat, 1246° / 37°0.27
46 °
Deer Island, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.27 in
Chance of precipitation57%
Record high57° (1988)
Record low28° (1972)
Sun, 1345° / 36°0.28
45 °
Deer Island, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.28 in
Chance of precipitation62%
Record high58° (2025)
Record low4° (1972)
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 Deer Island, 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 Deer Island, 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.