Monthly outlook for Charleston, OR: average high 54.7°, average low 48.8°. That is 3.2° below the climate normal for October. Precipitation is expected on 10 days (about 4.3 inches), against a normal of 6 days and 2.6 inches. The warmest day looks like 17 October (58.7°), the coolest 1 November (43.7°).
54.7°/48.8°
Average high / low
−3.2°
Below normal
10 / 6
Wet days / normal
4.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
55.4°
61.4°
-3.3°
27 October – 5 November
53.5°
58.5°
-2.7°
6 November – 15 November
at normal
56°
—
October records over 66 years
94.3°10 October 1991All-time high
34.9°28 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Bunker Hill (6 mi).
Sun, 1854° / 51°0
54 °
Charleston, Sunday, 18 October
Clear. High 54°, low 51°.
Pressure30.06 inHg
Wind12.6 mph N
Humidity79%
Visibility6.2 mi
Dew point46°
Mon, 1954° / 50°0.04
54 °
Charleston, Monday, 19 October
Light rain. High 54°, low 50°.
Pressure29.94 inHg
Wind5.4 mph W
Humidity77%
Visibility6.2 mi
Dew point47°
Tue, 2054° / 52°0
54 °
Charleston, Tuesday, 20 October
Overcast. High 54°, low 52°.
Pressure29.97 inHg
Wind11.6 mph N
Humidity88%
Visibility0.9 mi
Dew point49°
Wed, 2154° / 52°0
54 °
Charleston, Wednesday, 21 October
Clear. High 54°, low 52°.
Pressure29.91 inHg
Wind15.5 mph N
Humidity92%
Visibility—
Dew point51°
Thu, 2255° / 53°0
55 °
Charleston, Thursday, 22 October
Mostly clear. High 55°, low 53°.
Pressure30.06 inHg
Wind15.6 mph N
Humidity91%
Visibility—
Dew point52°
Fri, 2356° / 48°0.24
56 °
Charleston, Friday, 23 October
Rain. High 56°, low 48°.
Pressure30.06 inHg
Wind17.7 mph S
Humidity83%
Visibility—
Dew point47°
Sat, 2457° / 50°1.03
57 °
Charleston, Saturday, 24 October
Rain. High 57°, low 50°.
Pressure29.94 inHg
Wind28.2 mph S
Humidity90%
Visibility—
Dew point52°
Sun, 2556° / 47°0
56 °
Charleston, Sunday, 25 October
Partly cloudy. High 56°, low 47°.
Pressure30.06 inHg
Wind16.3 mph SW
Humidity79%
Visibility—
Dew point48°
Mon, 2656° / 51°0.47
56 °
Charleston, Monday, 26 October
Rain. High 56°, low 51°.
Pressure29.94 inHg
Wind22.7 mph S
Humidity87%
Visibility—
Dew point51°
Tue, 2756° / 47°0.19
56 °
Charleston, Tuesday, 27 October
Light rain. High 56°, low 47°.
Pressure30.18 inHg
Wind13.2 mph NW
Humidity62%
Visibility—
Dew point43°
Wed, 2853° / 46°0.46
53 °
Charleston, Wednesday, 28 October
Rain. High 53°, low 46°.
Pressure30.06 inHg
Wind22.7 mph S
Humidity90%
Visibility—
Dew point48°
Thu, 2953° / 48°0.81
53 °
Charleston, Thursday, 29 October
Rain. High 53°, low 48°.
Pressure30.03 inHg
Wind15.3 mph NW
Humidity81%
Visibility—
Dew point47°
Fri, 3054° / 45°0.1
54 °
Charleston, Friday, 30 October
Light rain. High 54°, low 45°.
Pressure30.00 inHg
Wind18.1 mph S
Humidity71%
Visibility—
Dew point43°
Sat, 3153° / 47°0.7
53 °
Charleston, Saturday, 31 October
Rain. High 53°, low 47°.
Pressure29.68 inHg
Wind26.5 mph S
Humidity78%
Visibility—
Dew point46°
Sun, 0153° / 44°0.29
53 °
Charleston, Sunday, 1 November
Rain. High 53°, low 44°.
Pressure29.53 inHg
Wind13 mph NE
Humidity69%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0259° / 47°0.2
59 °
Charleston, Monday, 2 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.2 in
Chance of precipitation47%
Record high71° (2010)
Record low38° (2002)
Tue, 0359° / 48°0.17
59 °
Charleston, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high59°
Average low48°
Average precipitation0.17 in
Chance of precipitation43%
Record high70° (1976)
Record low36° (2022)
Wed, 0457° / 48°0.25
57 °
Charleston, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high57°
Average low48°
Average precipitation0.25 in
Chance of precipitation57%
Record high68° (1976)
Record low37° (2017)
Thu, 0557° / 47°0.29
57 °
Charleston, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.29 in
Chance of precipitation55%
Record high68° (2012)
Record low36° (1971)
Fri, 0656° / 48°0.25
56 °
Charleston, Friday, 6 November
Climate normal for this date — 60-year average.
Average high56°
Average low48°
Average precipitation0.25 in
Chance of precipitation65%
Record high68° (1978)
Record low39° (1971)
Sat, 0756° / 47°0.24
56 °
Charleston, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.24 in
Chance of precipitation60%
Record high66° (2016)
Record low39° (2022)
Sun, 0856° / 45°0.24
56 °
Charleston, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high56°
Average low45°
Average precipitation0.24 in
Chance of precipitation52%
Record high71° (2025)
Record low37° (2022)
Mon, 0955° / 46°0.25
55 °
Charleston, Monday, 9 November
Climate normal for this date — 60-year average.
Average high55°
Average low46°
Average precipitation0.25 in
Chance of precipitation53%
Record high68° (1996)
Record low33° (2020)
Tue, 1056° / 46°0.25
56 °
Charleston, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.25 in
Chance of precipitation52%
Record high67° (1996)
Record low33° (2022)
Wed, 1157° / 46°0.27
57 °
Charleston, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high57°
Average low46°
Average precipitation0.27 in
Chance of precipitation57%
Record high66° (2016)
Record low30° (1985)
Thu, 1256° / 46°0.21
56 °
Charleston, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.21 in
Chance of precipitation53%
Record high69° (1967)
Record low31° (1985)
Fri, 1356° / 46°0.32
56 °
Charleston, Friday, 13 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.32 in
Chance of precipitation60%
Record high66° (1969)
Record low31° (1978)
Sat, 1456° / 46°0.2
56 °
Charleston, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.2 in
Chance of precipitation50%
Record high65° (1999)
Record low31° (1978)
Sun, 1556° / 46°0.28
56 °
Charleston, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.28 in
Chance of precipitation60%
Record high65° (2008)
Record low34° (1964)
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 Charleston, 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 Charleston, 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.