Monthly outlook for Harrington, WA: average high 48.6°, average low 37.8°. That is 0.7° below the climate normal for October. Precipitation is expected on 6 days (about 0.9 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 5 November (55.3°), the coolest 31 October (31.7°).
48.6°/37.8°
Average high / low
−0.7°
Below normal
6 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
47.1°
51.1°
-2.3°
5 November – 14 November
51.2°
46.9°
+2.3°
15 November – 24 November
at normal
42.3°
—
October records over 66 years
86.2°2 October 1975All-time high
16.3°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Downs (10 mi).
Tue, 2749° / 44°0.01
49 °
Harrington, Tuesday, 27 October
Light rain. High 49°, low 44°.
Pressure29.94 inHg
Wind9.2 mph SW
Humidity73%
Visibility6.2 mi
Dew point39°
Wed, 2847° / 35°0.06
47 °
Harrington, Wednesday, 28 October
Light rain. High 47°, low 35°.
Pressure29.94 inHg
Wind12.8 mph SW
Humidity76%
Visibility6.1 mi
Dew point37°
Thu, 2949° / 32°0
49 °
Harrington, Thursday, 29 October
Partly cloudy. High 49°, low 32°.
Pressure30.06 inHg
Wind8.7 mph E
Humidity64%
Visibility6.2 mi
Dew point34°
Fri, 3047° / 33°0
47 °
Harrington, Friday, 30 October
Clear. High 47°, low 33°.
Pressure30.00 inHg
Wind5.5 mph SW
Humidity67%
Visibility6.2 mi
Dew point33°
Sat, 3147° / 32°0.02
47 °
Harrington, Saturday, 31 October
Light rain. High 47°, low 32°.
Pressure30.00 inHg
Wind9.6 mph NE
Humidity86%
Visibility—
Dew point34°
Sun, 0145° / 33°0.03
45 °
Harrington, Sunday, 1 November
Light rain. High 45°, low 33°.
Pressure30.15 inHg
Wind10.6 mph SW
Humidity70%
Visibility—
Dew point30°
Mon, 0246° / 32°0
46 °
Harrington, Monday, 2 November
Mostly clear. High 46°, low 32°.
Pressure30.45 inHg
Wind12.7 mph NE
Humidity64%
Visibility—
Dew point29°
Tue, 0346° / 35°0
46 °
Harrington, Tuesday, 3 November
Overcast. High 46°, low 35°.
Pressure30.30 inHg
Wind16.7 mph NE
Humidity58%
Visibility—
Dew point26°
Wed, 0447° / 38°0
47 °
Harrington, Wednesday, 4 November
Overcast. High 47°, low 38°.
Pressure30.09 inHg
Wind11 mph NE
Humidity54%
Visibility—
Dew point29°
Thu, 0555° / 45°0
55 °
Harrington, Thursday, 5 November
Overcast. High 55°, low 45°.
Pressure29.91 inHg
Wind15.6 mph NE
Humidity50%
Visibility—
Dew point31°
Fri, 0652° / 47°0.13
52 °
Harrington, Friday, 6 November
Light rain. High 52°, low 47°.
Pressure29.47 inHg
Wind17.2 mph NE
Humidity56%
Visibility—
Dew point36°
Sat, 0751° / 41°0.09
51 °
Harrington, Saturday, 7 November
Light rain. High 51°, low 41°.
Pressure29.71 inHg
Wind21.4 mph SW
Humidity63%
Visibility—
Dew point37°
Sun, 0846° / 36°0.2
46 °
Harrington, Sunday, 8 November
Light rain. High 46°, low 36°.
Pressure30.09 inHg
Wind15.2 mph SE
Humidity72%
Visibility—
Dew point34°
Mon, 0952° / 41°0.2
52 °
Harrington, Monday, 9 November
Light rain. High 52°, low 41°.
Pressure30.09 inHg
Wind11.3 mph S
Humidity83%
Visibility—
Dew point38°
Tue, 1051° / 40°0.01
51 °
Harrington, Tuesday, 10 November
Light rain. High 51°, low 40°.
Pressure30.21 inHg
Wind11.9 mph E
Humidity75%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1147° / 34°0.05
47 °
Harrington, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.05 in
Chance of precipitation25%
Record high60° (1990)
Record low6° (2000)
Thu, 1246° / 35°0.06
46 °
Harrington, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.06 in
Chance of precipitation30%
Record high64° (1999)
Record low10° (2000)
Fri, 1346° / 34°0.08
46 °
Harrington, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.08 in
Chance of precipitation37%
Record high60° (1999)
Record low14° (2000)
Sat, 1446° / 34°0.04
46 °
Harrington, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.04 in
Chance of precipitation23%
Record high63° (1999)
Record low13° (1964)
Sun, 1545° / 33°0.06
45 °
Harrington, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.06 in
Chance of precipitation35%
Record high59° (2025)
Record low6° (2000)
Mon, 1644° / 33°0.07
44 °
Harrington, Monday, 16 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.07 in
Chance of precipitation42%
Record high59° (1999)
Record low16° (2000)
Tue, 1745° / 34°0.07
45 °
Harrington, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.07 in
Chance of precipitation38%
Record high58° (1976)
Record low19° (2000)
Wed, 1844° / 31°0.04
44 °
Harrington, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.04 in
Chance of precipitation27%
Record high56° (2003)
Record low14° (1985)
Thu, 1943° / 31°0.08
43 °
Harrington, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.08 in
Chance of precipitation37%
Record high56° (1966)
Record low-2° (1985)
Fri, 2043° / 32°0.09
43 °
Harrington, Friday, 20 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.09 in
Chance of precipitation42%
Record high56° (2002)
Record low13° (1985)
Sat, 2141° / 30°0.07
41 °
Harrington, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.07 in
Chance of precipitation32%
Record high54° (1974)
Record low-5° (1985)
Sun, 2240° / 28°0.07
40 °
Harrington, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.07 in
Chance of precipitation35%
Record high55° (2017)
Record low-3° (1985)
Mon, 2339° / 28°0.07
39 °
Harrington, Monday, 23 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.07 in
Chance of precipitation48%
Record high57° (2017)
Record low-16° (1985)
Tue, 2439° / 29°0.07
39 °
Harrington, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high39°
Average low29°
Average precipitation0.07 in
Chance of precipitation45%
Record high53° (1995)
Record low-10° (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 Harrington, 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 Harrington, 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.