As of 05:35 PDT

Weather in Sisco, WA

55°Current weather

Sisco, Friday, 9 October, 05:35

Overcast. Feels like 55°. High 62°, low 49°.

Pressure29.80 inHg
Wind10.4 mph S
Humidity89%
Visibility2.4 mi
Dew point52°

Monthly outlook for Sisco, WA: average high 61°, average low 43.8°. That is 1.8° 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 15 October (65.9°), the coolest 12 October (36.9°).

61°/43.8°
Average high / low
+1.8°
Above normal
4 / 8
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October61.7°58.5°+1.7°
19 October – 28 October59.8°55.4°+2.4°
29 October – 7 Novemberat normal52.1°—

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 (3 mi).

Sat, 1061° / 42°0.18Rain
61 °Rain

Sisco, Saturday, 10 October

Rain. High 61°, low 42°.

Pressure29.88 inHg
Wind3.7 mph NW
Humidity71%
Visibility6.2 mi
Dew point45°
Sun, 1160° / 38°0Clear
60 °Clear

Sisco, Sunday, 11 October

Clear. High 60°, low 38°.

Pressure29.97 inHg
Wind5.3 mph W
Humidity58%
Visibility6.2 mi
Dew point41°
Mon, 1259° / 37°0Clear
59 °Clear

Sisco, Monday, 12 October

Clear. High 59°, low 37°.

Pressure30.06 inHg
Wind2.9 mph S
Humidity62%
Visibility6.2 mi
Dew point42°
Tue, 1357° / 41°0.01Light rain
57 °Light rain

Sisco, Tuesday, 13 October

Light rain. High 57°, low 41°.

Pressure30.12 inHg
Wind10.4 mph SE
Humidity70%
Visibility—
Dew point40°
Wed, 1459° / 49°0.15Light rain
59 °Light rain

Sisco, Wednesday, 14 October

Light rain. High 59°, low 49°.

Pressure30.30 inHg
Wind7.3 mph SE
Humidity92%
Visibility—
Dew point52°
Thu, 1566° / 46°0Overcast
66 °Overcast

Sisco, Thursday, 15 October

Overcast. High 66°, low 46°.

Pressure30.33 inHg
Wind3.8 mph NW
Humidity52%
Visibility—
Dew point41°
Fri, 1664° / 48°0Overcast
64 °Overcast

Sisco, Friday, 16 October

Overcast. High 64°, low 48°.

Pressure30.30 inHg
Wind3.6 mph E
Humidity42%
Visibility—
Dew point35°
Sat, 1765° / 47°0Overcast
65 °Overcast

Sisco, Saturday, 17 October

Overcast. High 65°, low 47°.

Pressure30.27 inHg
Wind3.3 mph E
Humidity46%
Visibility—
Dew point37°
Sun, 1864° / 46°0Overcast
64 °Overcast

Sisco, Sunday, 18 October

Overcast. High 64°, low 46°.

Pressure30.18 inHg
Wind3.8 mph W
Humidity67%
Visibility—
Dew point46°
Mon, 1956° / 46°0.28Rain
56 °Rain

Sisco, Monday, 19 October

Rain. High 56°, low 46°.

Pressure30.09 inHg
Wind4.6 mph NW
Humidity96%
Visibility—
Dew point49°
Tue, 2055° / 44°0Overcast
55 °Overcast

Sisco, Tuesday, 20 October

Overcast. High 55°, low 44°.

Pressure30.21 inHg
Wind3.5 mph E
Humidity82%
Visibility—
Dew point46°
Wed, 2161° / 41°0Clear
61 °Clear

Sisco, Wednesday, 21 October

Clear. High 61°, low 41°.

Pressure30.30 inHg
Wind3.7 mph NW
Humidity58%
Visibility—
Dew point39°
Thu, 2263° / 43°0Clear
63 °Clear

Sisco, Thursday, 22 October

Clear. High 63°, low 43°.

Pressure30.03 inHg
Wind3.5 mph NW
Humidity47%
Visibility—
Dew point35°
Fri, 2364° / 42°0Clear
64 °Clear

Sisco, Friday, 23 October

Clear. High 64°, low 42°.

Pressure29.97 inHg
Wind3.7 mph W
Humidity41%
Visibility—
Dew point32°
Sat, 2460° / 42°0Partly cloudy
60 °Partly cloudy

Sisco, Saturday, 24 October

Partly cloudy. High 60°, low 42°.

Pressure30.00 inHg
Wind5 mph NW
Humidity51%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2555° / 44°0.24Climate normal
55 °Climate normal

Sisco, 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°0.32Climate normal
54 °Climate normal

Sisco, 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°0.26Climate normal
54 °Climate normal

Sisco, 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°0.29Climate normal
53 °Climate normal

Sisco, 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°0.19Climate normal
53 °Climate normal

Sisco, 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°0.27Climate normal
53 °Climate normal

Sisco, 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°0.34Climate normal
52 °Climate normal

Sisco, 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°0.31Climate normal
53 °Climate normal

Sisco, 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°0.26Climate normal
53 °Climate normal

Sisco, 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°0.32Climate normal
52 °Climate normal

Sisco, 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°0.38Climate normal
53 °Climate normal

Sisco, 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°0.24Climate normal
52 °Climate normal

Sisco, 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°0.33Climate normal
51 °Climate normal

Sisco, 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°0.33Climate normal
51 °Climate normal

Sisco, 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 Sisco, 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 Sisco, 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.