Monthly outlook for Winchester Bay, OR: average high 66°, average low 55.5°. That is 3.5° below the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 9 August (86.6°), the coolest 13 August (53.5°).
66°/55.5°
Average high / low
−3.5°
Below normal
0 / 1
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
66.6°
72.6°
-3.3°
19 August – 28 August
64.9°
71.8°
-3.8°
29 August – 7 September
at normal
71.7°
—
August records over 66 years
102.7°13 August 2002All-time high
48.7°22 August 1973All-time low
Climate normals and records are computed from the nearest reference point — Reedsport (4 mi).
Mon, 1085° / 54°0
85 °
Winchester Bay, Monday, 10 August
Partly cloudy. High 85°, low 54°.
Pressure30.06 inHg
Wind17.7 mph N
Humidity75%
Visibility6.2 mi
Dew point52°
Tue, 1162° / 54°0
62 °
Winchester Bay, Tuesday, 11 August
Mostly clear. High 62°, low 54°.
Pressure30.09 inHg
Wind16.5 mph N
Humidity77%
Visibility6.2 mi
Dew point53°
Wed, 1261° / 56°0
61 °
Winchester Bay, Wednesday, 12 August
Partly cloudy. High 61°, low 56°.
Pressure30.03 inHg
Wind18.4 mph N
Humidity83%
Visibility—
Dew point55°
Thu, 1361° / 53°0
61 °
Winchester Bay, Thursday, 13 August
Overcast. High 61°, low 53°.
Pressure29.88 inHg
Wind15.2 mph N
Humidity84%
Visibility—
Dew point55°
Fri, 1461° / 56°0.01
61 °
Winchester Bay, Friday, 14 August
Light rain. High 61°, low 56°.
Pressure29.97 inHg
Wind8.5 mph NW
Humidity83%
Visibility—
Dew point56°
Sat, 1561° / 56°0
61 °
Winchester Bay, Saturday, 15 August
Overcast. High 61°, low 56°.
Pressure30.03 inHg
Wind10.8 mph N
Humidity81%
Visibility—
Dew point54°
Sun, 1662° / 54°0
62 °
Winchester Bay, Sunday, 16 August
Overcast. High 62°, low 54°.
Pressure30.09 inHg
Wind8.4 mph NW
Humidity80%
Visibility—
Dew point55°
Mon, 1762° / 56°0
62 °
Winchester Bay, Monday, 17 August
Overcast. High 62°, low 56°.
Pressure30.15 inHg
Wind16.2 mph N
Humidity77%
Visibility—
Dew point54°
Tue, 1864° / 55°0
64 °
Winchester Bay, Tuesday, 18 August
Overcast. High 64°, low 55°.
Pressure30.09 inHg
Wind15 mph N
Humidity73%
Visibility—
Dew point54°
Wed, 1964° / 55°0
64 °
Winchester Bay, Wednesday, 19 August
Overcast. High 64°, low 55°.
Pressure30.03 inHg
Wind15.8 mph N
Humidity78%
Visibility—
Dew point56°
Thu, 2063° / 56°0
63 °
Winchester Bay, Thursday, 20 August
Overcast. High 63°, low 56°.
Pressure30.06 inHg
Wind20.6 mph N
Humidity84%
Visibility—
Dew point57°
Fri, 2163° / 56°0
63 °
Winchester Bay, Friday, 21 August
Overcast. High 63°, low 56°.
Pressure29.97 inHg
Wind19.4 mph N
Humidity76%
Visibility—
Dew point55°
Sat, 2264° / 56°0
64 °
Winchester Bay, Saturday, 22 August
Overcast. High 64°, low 56°.
Pressure30.00 inHg
Wind18.8 mph N
Humidity79%
Visibility—
Dew point56°
Sun, 2366° / 57°0
66 °
Winchester Bay, Sunday, 23 August
Overcast. High 66°, low 57°.
Pressure30.03 inHg
Wind17 mph N
Humidity78%
Visibility—
Dew point57°
Mon, 2470° / 58°0
70 °
Winchester Bay, Monday, 24 August
Overcast. High 70°, low 58°.
Pressure29.85 inHg
Wind9.1 mph N
Humidity69%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2572° / 56°0.04
72 °
Winchester Bay, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high72°
Average low56°
Average precipitation0.04 in
Chance of precipitation10%
Record high93° (2016)
Record low50° (2018)
Wed, 2673° / 56°0.02
73 °
Winchester Bay, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.02 in
Chance of precipitation12%
Record high88° (2016)
Record low52° (1969)
Thu, 2772° / 57°0.03
72 °
Winchester Bay, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high72°
Average low57°
Average precipitation0.03 in
Chance of precipitation12%
Record high90° (2019)
Record low51° (2020)
Fri, 2872° / 57°0.03
72 °
Winchester Bay, Friday, 28 August
Climate normal for this date — 60-year average.
Average high72°
Average low57°
Average precipitation0.03 in
Chance of precipitation18%
Record high82° (2002)
Record low52° (2024)
Sat, 2971° / 57°0.04
71 °
Winchester Bay, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high71°
Average low57°
Average precipitation0.04 in
Chance of precipitation15%
Record high85° (1987)
Record low51° (1966)
Sun, 3071° / 57°0.05
71 °
Winchester Bay, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high71°
Average low57°
Average precipitation0.05 in
Chance of precipitation20%
Record high92° (1987)
Record low51° (2020)
Mon, 3171° / 57°0.03
71 °
Winchester Bay, Monday, 31 August
Climate normal for this date — 60-year average.
Average high71°
Average low57°
Average precipitation0.03 in
Chance of precipitation13%
Record high88° (1987)
Record low50° (1975)
Tue, 0172° / 56°0.04
72 °
Winchester Bay, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high72°
Average low56°
Average precipitation0.04 in
Chance of precipitation15%
Record high95° (1988)
Record low50° (2021)
Wed, 0272° / 57°0.03
72 °
Winchester Bay, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high72°
Average low57°
Average precipitation0.03 in
Chance of precipitation12%
Record high89° (2003)
Record low48° (2021)
Thu, 0372° / 57°0.02
72 °
Winchester Bay, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high72°
Average low57°
Average precipitation0.02 in
Chance of precipitation10%
Record high90° (2011)
Record low50° (2021)
Fri, 0473° / 56°0.02
73 °
Winchester Bay, Friday, 4 September
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.02 in
Chance of precipitation10%
Record high94° (1973)
Record low50° (2000)
Sat, 0572° / 56°0.03
72 °
Winchester Bay, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high72°
Average low56°
Average precipitation0.03 in
Chance of precipitation13%
Record high96° (2014)
Record low50° (2018)
Sun, 0672° / 56°0.02
72 °
Winchester Bay, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high72°
Average low56°
Average precipitation0.02 in
Chance of precipitation10%
Record high93° (1981)
Record low51° (2002)
Mon, 0771° / 56°0.02
71 °
Winchester Bay, Monday, 7 September
Climate normal for this date — 60-year average.
Average high71°
Average low56°
Average precipitation0.02 in
Chance of precipitation15%
Record high83° (1969)
Record low51° (1978)
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 Winchester Bay, 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 Winchester Bay, 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.