As of 22:12 PDT

Weather in South Union, WA

39°Current weather

South Union, Friday, 30 October, 22:12

Fog. Feels like 39°. High 50°, low 39°.

Pressure29.94 inHg
Wind0 mph N
Humidity94%
Visibility0.2 mi
Dew point38°

Monthly outlook for South Union, WA: average high 54.5°, average low 42.1°. That is 0.8° above the climate normal for October. Precipitation is expected on 7 days (about 1.7 inches), against a normal of 9 days and 4.1 inches. The warmest day looks like 8 November (65.3°), the coolest 12 November (36.7°).

54.5°/42.1°
Average high / low
+0.8°
Above normal
7 / 9
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
30 October – 8 November55.3°53.7°+0.9°
9 November – 18 November53.1°51°+1.2°
19 November – 28 Novemberat normal47.4°—

October records over 66 years

87.4°1 October 1987All-time high
29.5°28 October 2023All-time low

Climate normals and records are computed from the nearest reference point — Olympia (7 mi).

Sat, 3155° / 40°0Overcast
55 °Overcast

South Union, Saturday, 31 October

Overcast. High 55°, low 40°.

Pressure30.00 inHg
Wind3.7 mph NE
Humidity89%
Visibility0.8 mi
Dew point43°
Sun, 0152° / 38°0Overcast
52 °Overcast

South Union, Sunday, 1 November

Overcast. High 52°, low 38°.

Pressure30.12 inHg
Wind2.9 mph NE
Humidity84%
Visibility0.9 mi
Dew point42°
Mon, 0249° / 38°0Overcast
49 °Overcast

South Union, Monday, 2 November

Overcast. High 49°, low 38°.

Pressure30.27 inHg
Wind1.8 mph N
Humidity87%
Visibility1.0 mi
Dew point42°
Tue, 0357° / 43°0Overcast
57 °Overcast

South Union, Tuesday, 3 November

Overcast. High 57°, low 43°.

Pressure30.18 inHg
Wind1 mph NE
Humidity73%
Visibility6.2 mi
Dew point43°
Wed, 0460° / 40°0Overcast
60 °Overcast

South Union, Wednesday, 4 November

Overcast. High 60°, low 40°.

Pressure29.91 inHg
Wind4.5 mph SW
Humidity74%
Visibility—
Dew point42°
Thu, 0559° / 42°0Overcast
59 °Overcast

South Union, Thursday, 5 November

Overcast. High 59°, low 42°.

Pressure29.94 inHg
Wind7.1 mph S
Humidity79%
Visibility—
Dew point43°
Fri, 0657° / 45°0.48Rain
57 °Rain

South Union, Friday, 6 November

Rain. High 57°, low 45°.

Pressure30.03 inHg
Wind9.7 mph SW
Humidity80%
Visibility—
Dew point46°
Sat, 0750° / 44°0.14Light rain
50 °Light rain

South Union, Saturday, 7 November

Light rain. High 50°, low 44°.

Pressure30.24 inHg
Wind3.4 mph S
Humidity94%
Visibility—
Dew point45°
Sun, 0865° / 48°0Light rain
65 °Light rain

South Union, Sunday, 8 November

Light rain. High 65°, low 48°.

Pressure30.06 inHg
Wind7.7 mph S
Humidity75%
Visibility—
Dew point48°
Mon, 0956° / 48°0.19Light rain
56 °Light rain

South Union, Monday, 9 November

Light rain. High 56°, low 48°.

Pressure30.18 inHg
Wind6 mph SW
Humidity92%
Visibility—
Dew point50°
Tue, 1054° / 43°0.17Rain
54 °Rain

South Union, Tuesday, 10 November

Rain. High 54°, low 43°.

Pressure30.15 inHg
Wind14.1 mph S
Humidity85%
Visibility—
Dew point46°
Wed, 1155° / 42°0.31Rain
55 °Rain

South Union, Wednesday, 11 November

Rain. High 55°, low 42°.

Pressure30.30 inHg
Wind11.9 mph SW
Humidity79%
Visibility—
Dew point44°
Thu, 1254° / 37°0Mostly clear
54 °Mostly clear

South Union, Thursday, 12 November

Mostly clear. High 54°, low 37°.

Pressure30.03 inHg
Wind6.1 mph NE
Humidity60%
Visibility—
Dew point32°
Fri, 1347° / 44°0.09Light rain
47 °Light rain

South Union, Friday, 13 November

Light rain. High 47°, low 44°.

Pressure29.85 inHg
Wind6.4 mph SW
Humidity75%
Visibility—
Dew point39°
Sat, 1452° / 44°0.02Light rain
52 °Light rain

South Union, Saturday, 14 November

Light rain. High 52°, low 44°.

Pressure29.91 inHg
Wind4.6 mph NE
Humidity93%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1551° / 41°0.27Climate normal
51 °Climate normal

South Union, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high51°
Average low41°
Average precipitation0.27 in
Chance of precipitation62%
Record high61° (2001)
Record low28° (1978)
Mon, 1649° / 41°0.25Climate normal
49 °Climate normal

South Union, Monday, 16 November

Climate normal for this date — 60-year average.

Average high49°
Average low41°
Average precipitation0.25 in
Chance of precipitation65%
Record high61° (1965)
Record low31° (2014)
Tue, 1750° / 41°0.28Climate normal
50 °Climate normal

South Union, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high50°
Average low41°
Average precipitation0.28 in
Chance of precipitation67%
Record high63° (1995)
Record low27° (1961)
Wed, 1849° / 40°0.19Climate normal
49 °Climate normal

South Union, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high49°
Average low40°
Average precipitation0.19 in
Chance of precipitation53%
Record high57° (1968)
Record low26° (1985)
Thu, 1949° / 40°0.37Climate normal
49 °Climate normal

South Union, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high49°
Average low40°
Average precipitation0.37 in
Chance of precipitation67%
Record high62° (1968)
Record low27° (2022)
Fri, 2049° / 40°0.26Climate normal
49 °Climate normal

South Union, Friday, 20 November

Climate normal for this date — 60-year average.

Average high49°
Average low40°
Average precipitation0.26 in
Chance of precipitation57%
Record high60° (2002)
Record low27° (1977)
Sat, 2148° / 38°0.29Climate normal
48 °Climate normal

South Union, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high48°
Average low38°
Average precipitation0.29 in
Chance of precipitation55%
Record high59° (2002)
Record low23° (1978)
Sun, 2247° / 38°0.27Climate normal
47 °Climate normal

South Union, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high47°
Average low38°
Average precipitation0.27 in
Chance of precipitation60%
Record high63° (2017)
Record low19° (1985)
Mon, 2347° / 38°0.35Climate normal
47 °Climate normal

South Union, Monday, 23 November

Climate normal for this date — 60-year average.

Average high47°
Average low38°
Average precipitation0.35 in
Chance of precipitation72%
Record high60° (2017)
Record low13° (1985)
Tue, 2447° / 39°0.36Climate normal
47 °Climate normal

South Union, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high47°
Average low39°
Average precipitation0.36 in
Chance of precipitation62%
Record high56° (1995)
Record low16° (2010)
Wed, 2547° / 38°0.34Climate normal
47 °Climate normal

South Union, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high47°
Average low38°
Average precipitation0.34 in
Chance of precipitation65%
Record high57° (1977)
Record low14° (1985)
Thu, 2647° / 38°0.22Climate normal
47 °Climate normal

South Union, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high47°
Average low38°
Average precipitation0.22 in
Chance of precipitation47%
Record high59° (2014)
Record low25° (1985)
Fri, 2747° / 39°0.27Climate normal
47 °Climate normal

South Union, Friday, 27 November

Climate normal for this date — 60-year average.

Average high47°
Average low39°
Average precipitation0.27 in
Chance of precipitation65%
Record high56° (2014)
Record low24° (1985)
Sat, 2846° / 38°0.2Climate normal
46 °Climate normal

South Union, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high46°
Average low38°
Average precipitation0.2 in
Chance of precipitation52%
Record high57° (2021)
Record low24° (1985)

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 South Union, 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 South Union, 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.