As of 00:36 PDT

Weather in Chapman, OR

43°Current weather

Chapman, Tuesday, 13 October, 00:36

Partly cloudy. Feels like 43°. High 60°, low 35°.

Pressure30.12 inHg
Wind1.6 mph W
Humidity89%
Visibility6.2 mi
Dew point40°

Monthly outlook for Chapman, OR: average high 60.7°, average low 42.1°. That is 1.3° above the climate normal for October. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 7 days and 2.8 inches. The warmest day looks like 16 October (72.4°), the coolest 13 October (35°).

60.7°/42.1°
Average high / low
+1.3°
Above normal
3 / 7
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 October – 22 October59.3°59.8°-0.2°
23 October – 1 November63°55.2°+4.3°
2 November – 11 Novemberat normal52.4°—

October records over 66 years

88.5°1 October 1987All-time high
27.3°28 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Vernonia (10 mi).

Wed, 1464° / 39°0Mostly clear
64 °Mostly clear

Chapman, Wednesday, 14 October

Mostly clear. High 64°, low 39°.

Pressure30.30 inHg
Wind1.3 mph N
Humidity62%
Visibility6.2 mi
Dew point49°
Thu, 1572° / 48°0Clear
72 °Clear

Chapman, Thursday, 15 October

Clear. High 72°, low 48°.

Pressure30.27 inHg
Wind10.1 mph E
Humidity43%
Visibility6.2 mi
Dew point46°
Fri, 1672° / 50°0Mostly clear
72 °Mostly clear

Chapman, Friday, 16 October

Mostly clear. High 72°, low 50°.

Pressure30.15 inHg
Wind1.4 mph S
Humidity38%
Visibility6.2 mi
Dew point43°
Sat, 1759° / 45°0.02Light rain
59 °Light rain

Chapman, Saturday, 17 October

Light rain. High 59°, low 45°.

Pressure30.15 inHg
Wind7.2 mph NW
Humidity75%
Visibility—
Dew point48°
Sun, 1857° / 40°0Partly cloudy
57 °Partly cloudy

Chapman, Sunday, 18 October

Partly cloudy. High 57°, low 40°.

Pressure30.00 inHg
Wind4.5 mph SE
Humidity75%
Visibility—
Dew point42°
Mon, 1951° / 42°0.66Rain
51 °Rain

Chapman, Monday, 19 October

Rain. High 51°, low 42°.

Pressure29.77 inHg
Wind6.3 mph SE
Humidity90%
Visibility—
Dew point45°
Tue, 2053° / 38°0.07Light rain
53 °Light rain

Chapman, Tuesday, 20 October

Light rain. High 53°, low 38°.

Pressure30.00 inHg
Wind3.2 mph NW
Humidity81%
Visibility—
Dew point41°
Wed, 2152° / 36°0Mostly clear
52 °Mostly clear

Chapman, Wednesday, 21 October

Mostly clear. High 52°, low 36°.

Pressure30.15 inHg
Wind4.5 mph SE
Humidity86%
Visibility—
Dew point41°
Thu, 2254° / 41°0.33Rain
54 °Rain

Chapman, Thursday, 22 October

Rain. High 54°, low 41°.

Pressure30.09 inHg
Wind9 mph NW
Humidity76%
Visibility—
Dew point44°
Fri, 2357° / 39°0Overcast
57 °Overcast

Chapman, Friday, 23 October

Overcast. High 57°, low 39°.

Pressure30.47 inHg
Wind3.6 mph NW
Humidity70%
Visibility—
Dew point40°
Sat, 2461° / 41°0Overcast
61 °Overcast

Chapman, Saturday, 24 October

Overcast. High 61°, low 41°.

Pressure30.53 inHg
Wind5.1 mph NW
Humidity61%
Visibility—
Dew point38°
Sun, 2561° / 42°0Overcast
61 °Overcast

Chapman, Sunday, 25 October

Overcast. High 61°, low 42°.

Pressure30.47 inHg
Wind6.5 mph N
Humidity58%
Visibility—
Dew point38°
Mon, 2667° / 46°0Mostly clear
67 °Mostly clear

Chapman, Monday, 26 October

Mostly clear. High 67°, low 46°.

Pressure30.27 inHg
Wind6.1 mph SE
Humidity42%
Visibility—
Dew point37°
Tue, 2769° / 46°0Clear
69 °Clear

Chapman, Tuesday, 27 October

Clear. High 69°, low 46°.

Pressure30.24 inHg
Wind3.3 mph SE
Humidity46%
Visibility—
Dew point38°
Wed, 2862° / 47°0Clear
62 °Clear

Chapman, Wednesday, 28 October

Clear. High 62°, low 47°.

Pressure30.09 inHg
Wind1.9 mph SE
Humidity48%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2954° / 42°0.17Climate normal
54 °Climate normal

Chapman, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.17 in
Chance of precipitation45%
Record high70° (1962)
Record low30° (1971)
Fri, 3054° / 42°0.21Climate normal
54 °Climate normal

Chapman, Friday, 30 October

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.21 in
Chance of precipitation47%
Record high66° (1993)
Record low30° (1972)
Sat, 3154° / 42°0.28Climate normal
54 °Climate normal

Chapman, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.28 in
Chance of precipitation52%
Record high68° (1966)
Record low30° (2003)
Sun, 0154° / 42°0.24Climate normal
54 °Climate normal

Chapman, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.24 in
Chance of precipitation47%
Record high68° (1962)
Record low29° (2003)
Mon, 0254° / 42°0.2Climate normal
54 °Climate normal

Chapman, Monday, 2 November

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.2 in
Chance of precipitation50%
Record high66° (1981)
Record low30° (2002)
Tue, 0354° / 43°0.22Climate normal
54 °Climate normal

Chapman, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high54°
Average low43°
Average precipitation0.22 in
Chance of precipitation57%
Record high66° (2010)
Record low28° (2003)
Wed, 0454° / 43°0.29Climate normal
54 °Climate normal

Chapman, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high54°
Average low43°
Average precipitation0.29 in
Chance of precipitation63%
Record high68° (1980)
Record low30° (2003)
Thu, 0552° / 42°0.24Climate normal
52 °Climate normal

Chapman, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°
Average low42°
Average precipitation0.24 in
Chance of precipitation70%
Record high65° (1987)
Record low28° (1971)
Fri, 0652° / 42°0.31Climate normal
52 °Climate normal

Chapman, Friday, 6 November

Climate normal for this date — 60-year average.

Average high52°
Average low42°
Average precipitation0.31 in
Chance of precipitation65%
Record high62° (2012)
Record low30° (2003)
Sat, 0752° / 42°0.26Climate normal
52 °Climate normal

Chapman, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high52°
Average low42°
Average precipitation0.26 in
Chance of precipitation62%
Record high61° (1978)
Record low33° (1973)
Sun, 0852° / 40°0.21Climate normal
52 °Climate normal

Chapman, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°
Average low40°
Average precipitation0.21 in
Chance of precipitation53%
Record high66° (1976)
Record low31° (1977)
Mon, 0951° / 41°0.22Climate normal
51 °Climate normal

Chapman, Monday, 9 November

Climate normal for this date — 60-year average.

Average high51°
Average low41°
Average precipitation0.22 in
Chance of precipitation62%
Record high64° (1996)
Record low27° (2020)
Tue, 1051° / 40°0.2Climate normal
51 °Climate normal

Chapman, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°
Average low40°
Average precipitation0.2 in
Chance of precipitation50%
Record high65° (2016)
Record low29° (1978)
Wed, 1152° / 41°0.26Climate normal
52 °Climate normal

Chapman, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high52°
Average low41°
Average precipitation0.26 in
Chance of precipitation63%
Record high62° (1990)
Record low27° (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 Chapman, 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 Chapman, 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.