Monthly outlook for Hartstene, WA: average high 59.8°, average low 44.9°. That is 1.1° above the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 7 days and 2.9 inches. The warmest day looks like 16 October (74.5°), the coolest 27 October (36.6°).
59.8°/44.9°
Average high / low
+1.1°
Above normal
4 / 7
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
62.2°
59.1°
+1.7°
23 October – 1 November
55.9°
55°
+0.5°
2 November – 11 November
at normal
52.3°
—
October records over 66 years
87.1°1 October 1987All-time high
28.6°28 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Grapeview (4 mi).
Wed, 1468° / 52°0.02
68 °
Hartstene, Wednesday, 14 October
Light rain. High 68°, low 52°.
Pressure30.30 inHg
Wind3.3 mph SW
Humidity66%
Visibility6.2 mi
Dew point53°
Thu, 1573° / 47°0
73 °
Hartstene, Thursday, 15 October
Clear. High 73°, low 47°.
Pressure30.33 inHg
Wind4.1 mph NE
Humidity60%
Visibility6.2 mi
Dew point52°
Fri, 1674° / 48°0
74 °
Hartstene, Friday, 16 October
Overcast. High 74°, low 48°.
Pressure30.12 inHg
Wind2.9 mph S
Humidity48%
Visibility6.2 mi
Dew point48°
Sat, 1764° / 50°0.02
64 °
Hartstene, Saturday, 17 October
Light rain. High 64°, low 50°.
Pressure30.15 inHg
Wind2.3 mph NW
Humidity64%
Visibility6.2 mi
Dew point50°
Sun, 1860° / 42°0
60 °
Hartstene, Sunday, 18 October
Overcast. High 60°, low 42°.
Pressure30.15 inHg
Wind3 mph NE
Humidity71%
Visibility—
Dew point44°
Mon, 1950° / 47°0.1
50 °
Hartstene, Monday, 19 October
Light rain. High 50°, low 47°.
Pressure29.94 inHg
Wind2.1 mph SE
Humidity94%
Visibility—
Dew point46°
Tue, 2055° / 48°0.04
55 °
Hartstene, Tuesday, 20 October
Light rain. High 55°, low 48°.
Pressure29.97 inHg
Wind3.6 mph SE
Humidity86%
Visibility—
Dew point47°
Wed, 2156° / 42°0.03
56 °
Hartstene, Wednesday, 21 October
Light rain. High 56°, low 42°.
Pressure30.00 inHg
Wind8.9 mph SW
Humidity70%
Visibility—
Dew point44°
Thu, 2260° / 46°0.18
60 °
Hartstene, Thursday, 22 October
Rain. High 60°, low 46°.
Pressure29.94 inHg
Wind11.1 mph SW
Humidity78%
Visibility—
Dew point46°
Fri, 2353° / 42°0.01
53 °
Hartstene, Friday, 23 October
Light rain. High 53°, low 42°.
Pressure30.03 inHg
Wind3.9 mph N
Humidity85%
Visibility—
Dew point44°
Sat, 2453° / 42°0.09
53 °
Hartstene, Saturday, 24 October
Light rain. High 53°, low 42°.
Pressure30.15 inHg
Wind5.8 mph S
Humidity75%
Visibility—
Dew point42°
Sun, 2553° / 45°0.03
53 °
Hartstene, Sunday, 25 October
Light rain. High 53°, low 45°.
Pressure30.27 inHg
Wind3.4 mph NE
Humidity90%
Visibility—
Dew point45°
Mon, 2655° / 37°0
55 °
Hartstene, Monday, 26 October
Clear. High 55°, low 37°.
Pressure30.36 inHg
Wind4 mph NE
Humidity74%
Visibility—
Dew point39°
Tue, 2759° / 37°0
59 °
Hartstene, Tuesday, 27 October
Partly cloudy. High 59°, low 37°.
Pressure30.21 inHg
Wind2.6 mph N
Humidity59%
Visibility—
Dew point35°
Wed, 2863° / 47°0
63 °
Hartstene, Wednesday, 28 October
Overcast. High 63°, low 47°.
Pressure30.24 inHg
Wind3.5 mph NE
Humidity61%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2954° / 45°0.17
54 °
Hartstene, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.17 in
Chance of precipitation45%
Record high68° (1962)
Record low34° (2023)
Fri, 3054° / 45°0.21
54 °
Hartstene, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.21 in
Chance of precipitation52%
Record high62° (1987)
Record low36° (1991)
Sat, 3154° / 45°0.28
54 °
Hartstene, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.28 in
Chance of precipitation50%
Record high63° (1964)
Record low33° (1984)
Sun, 0154° / 45°0.22
54 °
Hartstene, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.22 in
Chance of precipitation53%
Record high65° (1981)
Record low35° (1973)
Mon, 0254° / 45°0.22
54 °
Hartstene, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.22 in
Chance of precipitation55%
Record high66° (1962)
Record low36° (1973)
Tue, 0353° / 45°0.24
53 °
Hartstene, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low45°
Average precipitation0.24 in
Chance of precipitation55%
Record high64° (2010)
Record low34° (2017)
Wed, 0454° / 45°0.3
54 °
Hartstene, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low45°
Average precipitation0.3 in
Chance of precipitation60%
Record high66° (1980)
Record low34° (2003)
Thu, 0553° / 44°0.19
53 °
Hartstene, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low44°
Average precipitation0.19 in
Chance of precipitation60%
Record high64° (1997)
Record low32° (1973)
Fri, 0652° / 44°0.3
52 °
Hartstene, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.3 in
Chance of precipitation58%
Record high58° (1976)
Record low35° (2017)
Sat, 0752° / 44°0.26
52 °
Hartstene, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.26 in
Chance of precipitation67%
Record high60° (1976)
Record low35° (2017)
Sun, 0852° / 44°0.17
52 °
Hartstene, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.17 in
Chance of precipitation52%
Record high66° (2016)
Record low36° (2020)
Mon, 0951° / 43°0.23
51 °
Hartstene, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.23 in
Chance of precipitation63%
Record high62° (2025)
Record low32° (2020)
Tue, 1051° / 43°0.19
51 °
Hartstene, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.19 in
Chance of precipitation50%
Record high63° (2016)
Record low32° (1986)
Wed, 1151° / 44°0.27
51 °
Hartstene, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.27 in
Chance of precipitation58%
Record high60° (1990)
Record low31° (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 Hartstene, 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 Hartstene, 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.