As of 07:13 PDT

Weather in Chapman, OR

38°Current weather

Chapman, Sunday, 11 October, 07:13

Partly cloudy. Feels like 38°. High 57°, low 36°.

Pressure29.91 inHg
Wind0 mph N
Humidity97%
Visibility0.6 mi
Dew point37°

Monthly outlook for Chapman, OR: average high 60.8°, average low 41.5°. That is 1° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 7 days and 2.6 inches. The warmest day looks like 16 October (73.8°), the coolest 11 October (36.4°).

60.8°/41.5°
Average high / low
+1°
Above normal
2 / 7
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October62.1°60.3°+1°
21 October – 30 October58.6°56°+1.4°
31 October – 9 Novemberat normal52.8°—

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).

Mon, 1258° / 37°0Clear
58 °Clear

Chapman, Monday, 12 October

Clear. High 58°, low 37°.

Pressure30.06 inHg
Wind3.1 mph N
Humidity48%
Visibility6.2 mi
Dew point37°
Tue, 1362° / 40°0Clear
62 °Clear

Chapman, Tuesday, 13 October

Clear. High 62°, low 40°.

Pressure30.18 inHg
Wind0.5 mph NW
Humidity36%
Visibility6.2 mi
Dew point32°
Wed, 1464° / 44°0Clear
64 °Clear

Chapman, Wednesday, 14 October

Clear. High 64°, low 44°.

Pressure30.30 inHg
Wind4.9 mph NW
Humidity64%
Visibility6.2 mi
Dew point49°
Thu, 1572° / 46°0Clear
72 °Clear

Chapman, Thursday, 15 October

Clear. High 72°, low 46°.

Pressure30.27 inHg
Wind8.7 mph E
Humidity50%
Visibility—
Dew point43°
Fri, 1674° / 52°0Clear
74 °Clear

Chapman, Friday, 16 October

Clear. High 74°, low 52°.

Pressure30.12 inHg
Wind8.7 mph NW
Humidity37%
Visibility—
Dew point39°
Sat, 1764° / 47°0Overcast
64 °Overcast

Chapman, Saturday, 17 October

Overcast. High 64°, low 47°.

Pressure30.18 inHg
Wind7.5 mph NW
Humidity52%
Visibility—
Dew point44°
Sun, 1864° / 42°0Overcast
64 °Overcast

Chapman, Sunday, 18 October

Overcast. High 64°, low 42°.

Pressure30.09 inHg
Wind4.9 mph NW
Humidity51%
Visibility—
Dew point37°
Mon, 1953° / 40°0.15Light rain
53 °Light rain

Chapman, Monday, 19 October

Light rain. High 53°, low 40°.

Pressure30.15 inHg
Wind7.8 mph NW
Humidity84%
Visibility—
Dew point45°
Tue, 2054° / 37°0Overcast
54 °Overcast

Chapman, Tuesday, 20 October

Overcast. High 54°, low 37°.

Pressure30.18 inHg
Wind5.6 mph S
Humidity79%
Visibility—
Dew point40°
Wed, 2154° / 41°0.02Light rain
54 °Light rain

Chapman, Wednesday, 21 October

Light rain. High 54°, low 41°.

Pressure30.15 inHg
Wind4.1 mph NW
Humidity66%
Visibility—
Dew point42°
Thu, 2256° / 39°0Overcast
56 °Overcast

Chapman, Thursday, 22 October

Overcast. High 56°, low 39°.

Pressure30.09 inHg
Wind4.3 mph SE
Humidity59%
Visibility—
Dew point36°
Fri, 2354° / 42°0.05Light rain
54 °Light rain

Chapman, Friday, 23 October

Light rain. High 54°, low 42°.

Pressure30.18 inHg
Wind4.9 mph SE
Humidity82%
Visibility—
Dew point43°
Sat, 2458° / 37°0Clear
58 °Clear

Chapman, Saturday, 24 October

Clear. High 58°, low 37°.

Pressure30.24 inHg
Wind5.3 mph NW
Humidity64%
Visibility—
Dew point37°
Sun, 2564° / 41°0Overcast
64 °Overcast

Chapman, Sunday, 25 October

Overcast. High 64°, low 41°.

Pressure30.36 inHg
Wind6.1 mph NW
Humidity39%
Visibility—
Dew point31°
Mon, 2666° / 44°0Overcast
66 °Overcast

Chapman, Monday, 26 October

Overcast. High 66°, low 44°.

Pressure30.27 inHg
Wind8.1 mph NW
Humidity39%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2756° / 43°0.22Climate normal
56 °Climate normal

Chapman, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high56°
Average low43°
Average precipitation0.22 in
Chance of precipitation48%
Record high72° (1987)
Record low31° (1971)
Wed, 2854° / 42°0.24Climate normal
54 °Climate normal

Chapman, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.24 in
Chance of precipitation57%
Record high71° (1987)
Record low27° (1971)
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)

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.