As of 03:54 PDT

Weather in Cathan, WA

54°

Cathan, Friday, 9 October, 03:54

Overcast. Feels like 54°. High 61°, low 49°.

Pressure29.83 inHg

Wind5 mph SW

Humidity94%

Visibility6.2 mi

Dew point53°

See detailed hourly forecast

Monthly outlook for Cathan, WA: average high 58.5°, average low 44.5°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 8 days and 3.5 inches. The warmest day looks like 16 October (61.5°), the coolest 12 October (39.1°).

58.5°/44.5°

Average high / low

+0.5°

Above normal

4 / 8

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	59.6°	58.5°	+0.6°
19 October – 28 October	56.7°	55.4°	+0.7°
29 October – 7 November	at normal	52.1°	—

October records over 66 years

84.2°1 October 1987All-time high

25.9°29 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Marysville (6 mi).

Sat, 1060° / 45°

0.19

60 °

Cathan, Saturday, 10 October

Rain. High 60°, low 45°.

Pressure29.88 inHg

Wind3.3 mph NW

Humidity73%

Visibility6.2 mi

Dew point45°

Sun, 1159° / 40°

59 °

Cathan, Sunday, 11 October

Clear. High 59°, low 40°.

Pressure30.00 inHg

Wind4.5 mph W

Humidity62%

Visibility6.2 mi

Dew point41°

Mon, 1257° / 39°

57 °

Cathan, Monday, 12 October

Clear. High 57°, low 39°.

Pressure30.06 inHg

Wind3.5 mph S

Humidity71%

Visibility6.2 mi

Dew point44°

Tue, 1357° / 42°

57 °

Cathan, Tuesday, 13 October

Overcast. High 57°, low 42°.

Pressure30.12 inHg

Wind13.9 mph SE

Humidity75%

Visibility—

Dew point42°

Wed, 1458° / 49°

0.21

58 °

Cathan, Wednesday, 14 October

Rain. High 58°, low 49°.

Pressure30.30 inHg

Wind7.4 mph SE

Humidity90%

Visibility—

Dew point51°

Thu, 1561° / 46°

61 °

Cathan, Thursday, 15 October

Overcast. High 61°, low 46°.

Pressure30.36 inHg

Wind5.6 mph NW

Humidity63%

Visibility—

Dew point43°

Fri, 1662° / 47°

62 °

Cathan, Friday, 16 October

Overcast. High 62°, low 47°.

Pressure30.30 inHg

Wind4.2 mph SE

Humidity49%

Visibility—

Dew point36°

Sat, 1761° / 47°

61 °

Cathan, Saturday, 17 October

Overcast. High 61°, low 47°.

Pressure30.27 inHg

Wind4.1 mph SE

Humidity53%

Visibility—

Dew point38°

Sun, 1860° / 47°

60 °

Cathan, Sunday, 18 October

Overcast. High 60°, low 47°.

Pressure30.18 inHg

Wind3.9 mph NW

Humidity72%

Visibility—

Dew point46°

Mon, 1954° / 47°

0.24

54 °

Cathan, Monday, 19 October

Rain. High 54°, low 47°.

Pressure30.09 inHg

Wind5.3 mph NW

Humidity94%

Visibility—

Dew point48°

Tue, 2054° / 44°

54 °

Cathan, Tuesday, 20 October

Light rain. High 54°, low 44°.

Pressure30.21 inHg

Wind6.1 mph NW

Humidity80%

Visibility—

Dew point45°

Wed, 2157° / 41°

57 °

Cathan, Wednesday, 21 October

Clear. High 57°, low 41°.

Pressure30.30 inHg

Wind4.3 mph NW

Humidity64%

Visibility—

Dew point39°

Thu, 2259° / 43°

59 °

Cathan, Thursday, 22 October

Clear. High 59°, low 43°.

Pressure30.06 inHg

Wind4.4 mph NW

Humidity55%

Visibility—

Dew point37°

Fri, 2360° / 42°

60 °

Cathan, Friday, 23 October

Clear. High 60°, low 42°.

Pressure29.97 inHg

Wind4 mph NW

Humidity46%

Visibility—

Dew point33°

Sat, 2457° / 42°

57 °

Cathan, Saturday, 24 October

Partly cloudy. High 57°, low 42°.

Pressure30.00 inHg

Wind5.8 mph NW

Humidity59%

Visibility—

Dew point38°

From day 17 onward the outlook is built from 60-year climate statistics

Sun, 2555° / 44°

0.24

55 °

Cathan, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high55°

Average low44°

Average precipitation0.24 in

Chance of precipitation55%

Record high66° (1965)

Record low31° (2020)

Mon, 2654° / 43°

0.32

54 °

Cathan, Monday, 26 October

Climate normal for this date — 60-year average.

Average high54°

Average low43°

Average precipitation0.32 in

Chance of precipitation53%

Record high69° (1965)

Record low30° (1970)

Tue, 2754° / 42°

0.26

54 °

Cathan, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high54°

Average low42°

Average precipitation0.26 in

Chance of precipitation47%

Record high66° (1962)

Record low28° (1971)

Wed, 2853° / 42°

0.29

53 °

Cathan, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high53°

Average low42°

Average precipitation0.29 in

Chance of precipitation60%

Record high68° (1962)

Record low26° (1971)

Thu, 2953° / 42°

0.19

53 °

Cathan, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high53°

Average low42°

Average precipitation0.19 in

Chance of precipitation55%

Record high69° (1962)

Record low26° (1991)

Fri, 3053° / 42°

0.27

53 °

Cathan, Friday, 30 October

Climate normal for this date — 60-year average.

Average high53°

Average low42°

Average precipitation0.27 in

Chance of precipitation55%

Record high62° (1987)

Record low28° (1991)

Sat, 3152° / 42°

0.34

52 °

Cathan, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high52°

Average low42°

Average precipitation0.34 in

Chance of precipitation67%

Record high63° (1964)

Record low27° (1984)

Sun, 0153° / 41°

0.31

53 °

Cathan, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high53°

Average low41°

Average precipitation0.31 in

Chance of precipitation50%

Record high65° (1969)

Record low30° (2002)

Mon, 0253° / 41°

0.26

53 °

Cathan, Monday, 2 November

Climate normal for this date — 60-year average.

Average high53°

Average low41°

Average precipitation0.26 in

Chance of precipitation58%

Record high66° (1962)

Record low30° (2002)

Tue, 0352° / 42°

0.32

52 °

Cathan, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high52°

Average low42°

Average precipitation0.32 in

Chance of precipitation63%

Record high66° (2010)

Record low30° (2002)

Wed, 0453° / 42°

0.38

53 °

Cathan, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°

Average low42°

Average precipitation0.38 in

Chance of precipitation62%

Record high67° (1980)

Record low30° (2003)

Thu, 0552° / 41°

0.24

52 °

Cathan, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°

Average low41°

Average precipitation0.24 in

Chance of precipitation67%

Record high64° (1997)

Record low25° (1973)

Fri, 0651° / 41°

0.33

51 °

Cathan, Friday, 6 November

Climate normal for this date — 60-year average.

Average high51°

Average low41°

Average precipitation0.33 in

Chance of precipitation65%

Record high59° (1979)

Record low26° (2003)

Sat, 0751° / 42°

0.33

51 °

Cathan, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high51°

Average low42°

Average precipitation0.33 in

Chance of precipitation72%

Record high60° (2016)

Record low30° (2003)

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 Cathan, WA 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 Cathan, WA 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.