Monthly outlook for Santiago, WA: average high 52.4°, average low 45.4°. That is 2.7° above the climate normal for November. Precipitation is expected on 7 days (about 5.2 inches), against a normal of 11 days and 8.5 inches. The warmest day looks like 24 November (55.7°), the coolest 20 November (33.1°).
52.4°/45.4°
Average high / low
+2.7°
Above normal
7 / 11
Wet days / normal
5.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
51.9°
48.1°
+2.1°
25 November – 4 December
53.2°
46.4°
+3.8°
5 December – 14 December
at normal
45.3°
—
November records over 66 years
65.8°3 November 2010All-time high
15.4°23 November 1985All-time low
Mon, 1652° / 44°0.37
52 °
Santiago, Monday, 16 November
Rain. High 52°, low 44°.
Pressure30.06 inHg
Wind11.2 mph S
Humidity83%
Visibility4.3 mi
Dew point45°
Tue, 1750° / 43°0
50 °
Santiago, Tuesday, 17 November
Overcast. High 50°, low 43°.
Pressure29.97 inHg
Wind14.8 mph SE
Humidity86%
Visibility6.2 mi
Dew point44°
Wed, 1852° / 43°0.02
52 °
Santiago, Wednesday, 18 November
Light rain. High 52°, low 43°.
Pressure29.94 inHg
Wind3.8 mph SE
Humidity58%
Visibility6.2 mi
Dew point36°
Thu, 1950° / 37°0
50 °
Santiago, Thursday, 19 November
Clear. High 50°, low 37°.
Pressure30.06 inHg
Wind6.2 mph E
Humidity60%
Visibility—
Dew point35°
Fri, 2049° / 33°0
49 °
Santiago, Friday, 20 November
Clear. High 49°, low 33°.
Pressure29.94 inHg
Wind18.9 mph E
Humidity54%
Visibility—
Dew point31°
Sat, 2149° / 46°0.41
49 °
Santiago, Saturday, 21 November
Rain. High 49°, low 46°.
Pressure29.83 inHg
Wind28.3 mph SE
Humidity87%
Visibility—
Dew point43°
Sun, 2253° / 46°0.36
53 °
Santiago, Sunday, 22 November
Rain. High 53°, low 46°.
Pressure29.68 inHg
Wind27.6 mph SE
Humidity61%
Visibility—
Dew point39°
Mon, 2355° / 48°1.5
55 °
Santiago, Monday, 23 November
Rain. High 55°, low 48°.
Pressure29.50 inHg
Wind33.2 mph E
Humidity86%
Visibility—
Dew point46°
Tue, 2456° / 52°1.63
56 °
Santiago, Tuesday, 24 November
Heavy rain. High 56°, low 52°.
Pressure29.44 inHg
Wind32.5 mph S
Humidity86%
Visibility—
Dew point51°
Wed, 2552° / 51°0.24
52 °
Santiago, Wednesday, 25 November
Light rain. High 52°, low 51°.
Pressure29.68 inHg
Wind18.2 mph SE
Humidity83%
Visibility—
Dew point47°
Thu, 2652° / 48°0
52 °
Santiago, Thursday, 26 November
Partly cloudy. High 52°, low 48°.
Pressure30.27 inHg
Wind4.7 mph E
Humidity77%
Visibility—
Dew point44°
Fri, 2753° / 46°0
53 °
Santiago, Friday, 27 November
Overcast. High 53°, low 46°.
Pressure30.21 inHg
Wind8.9 mph E
Humidity76%
Visibility—
Dew point44°
Sat, 2853° / 45°0
53 °
Santiago, Saturday, 28 November
Clear. High 53°, low 45°.
Pressure30.00 inHg
Wind13 mph SE
Humidity63%
Visibility—
Dew point39°
Sun, 2955° / 48°0
55 °
Santiago, Sunday, 29 November
Overcast. High 55°, low 48°.
Pressure30.09 inHg
Wind13.8 mph SE
Humidity66%
Visibility—
Dew point43°
Mon, 3054° / 49°0
54 °
Santiago, Monday, 30 November
Overcast. High 54°, low 49°.
Pressure30.03 inHg
Wind12.3 mph SE
Humidity68%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0146° / 39°0.59
46 °
Santiago, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high46°
Average low39°
Average precipitation0.59 in
Chance of precipitation70%
Record high53° (1989)
Record low20° (1985)
Wed, 0246° / 39°0.59
46 °
Santiago, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low39°
Average precipitation0.59 in
Chance of precipitation70%
Record high55° (2020)
Record low28° (1970)
Thu, 0346° / 39°0.57
46 °
Santiago, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low39°
Average precipitation0.57 in
Chance of precipitation60%
Record high55° (1988)
Record low26° (2024)
Fri, 0446° / 38°0.48
46 °
Santiago, Friday, 4 December
Climate normal for this date — 60-year average.
Average high46°
Average low38°
Average precipitation0.48 in
Chance of precipitation65%
Record high57° (2020)
Record low24° (1970)
Sat, 0545° / 38°0.39
45 °
Santiago, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high45°
Average low38°
Average precipitation0.39 in
Chance of precipitation57%
Record high55° (2020)
Record low23° (2018)
Sun, 0646° / 39°0.42
46 °
Santiago, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high46°
Average low39°
Average precipitation0.42 in
Chance of precipitation65%
Record high55° (2017)
Record low22° (1972)
Mon, 0745° / 39°0.44
45 °
Santiago, Monday, 7 December
Climate normal for this date — 60-year average.
Average high45°
Average low39°
Average precipitation0.44 in
Chance of precipitation62%
Record high55° (2017)
Record low17° (1972)
Tue, 0845° / 39°0.52
45 °
Santiago, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high45°
Average low39°
Average precipitation0.52 in
Chance of precipitation63%
Record high55° (1962)
Record low14° (1972)
Wed, 0945° / 39°0.52
45 °
Santiago, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high45°
Average low39°
Average precipitation0.52 in
Chance of precipitation75%
Record high55° (2014)
Record low24° (1972)
Thu, 1046° / 39°0.74
46 °
Santiago, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high46°
Average low39°
Average precipitation0.74 in
Chance of precipitation73%
Record high55° (1962)
Record low18° (1972)
Fri, 1146° / 40°0.63
46 °
Santiago, Friday, 11 December
Climate normal for this date — 60-year average.
Average high46°
Average low40°
Average precipitation0.63 in
Chance of precipitation73%
Record high55° (1962)
Record low28° (2009)
Sat, 1246° / 39°0.59
46 °
Santiago, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high46°
Average low39°
Average precipitation0.59 in
Chance of precipitation68%
Record high57° (1962)
Record low26° (1972)
Sun, 1345° / 39°0.59
45 °
Santiago, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high45°
Average low39°
Average precipitation0.59 in
Chance of precipitation72%
Record high58° (2025)
Record low28° (1972)
Mon, 1446° / 39°0.65
46 °
Santiago, Monday, 14 December
Climate normal for this date — 60-year average.
Average high46°
Average low39°
Average precipitation0.65 in
Chance of precipitation77%
Record high53° (2018)
Record low26° (1972)
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 Santiago, 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 Santiago, 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.