Monthly outlook for Harter, WA: average high 53.9°, average low 35.2°. That is 1.1° below the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 27 October (59.7°), the coolest 22 October (29.9°).
53.9°/35.2°
Average high / low
−1.1°
Below normal
2 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
53.1°
57.8°
-2.6°
22 October – 31 October
55.2°
51°
+2.3°
1 November – 10 November
at normal
45.4°
—
October records over 66 years
87.4°1 October 1992All-time high
-0°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Kettle Falls (3 mi).
Tue, 1353° / 36°0
53 °
Harter, Tuesday, 13 October
Mostly clear. High 53°, low 36°.
Pressure30.18 inHg
Wind2.9 mph SE
Humidity62%
Visibility6.0 mi
Dew point35°
Wed, 1455° / 36°0
55 °
Harter, Wednesday, 14 October
Clear. High 55°, low 36°.
Pressure30.27 inHg
Wind3.3 mph E
Humidity53%
Visibility6.2 mi
Dew point36°
Thu, 1557° / 37°0
57 °
Harter, Thursday, 15 October
Partly cloudy. High 57°, low 37°.
Pressure30.50 inHg
Wind1.9 mph NE
Humidity54%
Visibility6.2 mi
Dew point39°
Fri, 1659° / 40°0
59 °
Harter, Friday, 16 October
Clear. High 59°, low 40°.
Pressure30.33 inHg
Wind3.6 mph SE
Humidity54%
Visibility—
Dew point33°
Sat, 1758° / 39°0
58 °
Harter, Saturday, 17 October
Clear. High 58°, low 39°.
Pressure29.94 inHg
Wind4.7 mph SE
Humidity59%
Visibility—
Dew point36°
Sun, 1854° / 35°0
54 °
Harter, Sunday, 18 October
Clear. High 54°, low 35°.
Pressure30.09 inHg
Wind4.4 mph SE
Humidity48%
Visibility—
Dew point28°
Mon, 1953° / 39°0.08
53 °
Harter, Monday, 19 October
Light rain. High 53°, low 39°.
Pressure29.83 inHg
Wind3.9 mph W
Humidity47%
Visibility—
Dew point28°
Tue, 2042° / 35°0.18
42 °
Harter, Tuesday, 20 October
Light rain. High 42°, low 35°.
Pressure29.83 inHg
Wind2.2 mph NW
Humidity92%
Visibility—
Dew point37°
Wed, 2149° / 32°0
49 °
Harter, Wednesday, 21 October
Mostly clear. High 49°, low 32°.
Pressure30.06 inHg
Wind4.2 mph NW
Humidity67%
Visibility—
Dew point32°
Thu, 2251° / 30°0
51 °
Harter, Thursday, 22 October
Mostly clear. High 51°, low 30°.
Pressure30.18 inHg
Wind3.9 mph NW
Humidity50%
Visibility—
Dew point24°
Fri, 2352° / 30°0
52 °
Harter, Friday, 23 October
Partly cloudy. High 52°, low 30°.
Pressure30.12 inHg
Wind3.6 mph SE
Humidity46%
Visibility—
Dew point23°
Sat, 2454° / 34°0
54 °
Harter, Saturday, 24 October
Clear. High 54°, low 34°.
Pressure30.45 inHg
Wind3.9 mph SE
Humidity51%
Visibility—
Dew point29°
Sun, 2555° / 34°0
55 °
Harter, Sunday, 25 October
Overcast. High 55°, low 34°.
Pressure30.59 inHg
Wind3.5 mph E
Humidity58%
Visibility—
Dew point31°
Mon, 2659° / 36°0
59 °
Harter, Monday, 26 October
Partly cloudy. High 59°, low 36°.
Pressure30.45 inHg
Wind3.5 mph NW
Humidity51%
Visibility—
Dew point31°
Tue, 2760° / 37°0
60 °
Harter, Tuesday, 27 October
Clear. High 60°, low 37°.
Pressure30.27 inHg
Wind3.3 mph NW
Humidity50%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2849° / 36°0.08
49 °
Harter, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.08 in
Chance of precipitation38%
Record high62° (1983)
Record low14° (1991)
Thu, 2949° / 35°0.07
49 °
Harter, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation33%
Record high64° (1987)
Record low9° (1991)
Fri, 3048° / 35°0.06
48 °
Harter, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.06 in
Chance of precipitation28%
Record high63° (1987)
Record low14° (1972)
Sat, 3148° / 35°0.08
48 °
Harter, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.08 in
Chance of precipitation33%
Record high61° (1988)
Record low0° (1984)
Sun, 0148° / 35°0.09
48 °
Harter, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation42%
Record high62° (1987)
Record low13° (1984)
Mon, 0247° / 34°0.08
47 °
Harter, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.08 in
Chance of precipitation30%
Record high60° (2018)
Record low18° (1961)
Tue, 0346° / 34°0.05
46 °
Harter, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.05 in
Chance of precipitation27%
Record high59° (1975)
Record low16° (1994)
Wed, 0447° / 35°0.09
47 °
Harter, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation37%
Record high63° (1975)
Record low15° (1961)
Thu, 0546° / 34°0.06
46 °
Harter, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.06 in
Chance of precipitation40%
Record high58° (1975)
Record low11° (1961)
Fri, 0645° / 34°0.08
45 °
Harter, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.08 in
Chance of precipitation43%
Record high57° (2006)
Record low17° (1961)
Sat, 0745° / 34°0.1
45 °
Harter, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.1 in
Chance of precipitation38%
Record high58° (2006)
Record low17° (1961)
Sun, 0844° / 33°0.07
44 °
Harter, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.07 in
Chance of precipitation32%
Record high58° (2016)
Record low16° (2022)
Mon, 0944° / 33°0.08
44 °
Harter, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.08 in
Chance of precipitation40%
Record high59° (2016)
Record low5° (1986)
Tue, 1043° / 33°0.07
43 °
Harter, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.07 in
Chance of precipitation35%
Record high56° (1989)
Record low9° (1986)
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 Harter, 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 Harter, 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.