Monthly outlook for Harpster, ID: average high 54.7°, average low 36.1°. That is 3.7° below the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 6 days and 1.4 inches. The warmest day looks like 17 October (70.5°), the coolest 24 October (30.2°).
54.7°/36.1°
Average high / low
−3.7°
Below normal
4 / 6
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
57.8°
62.9°
-2.8°
23 October – 1 November
49.5°
57°
-4.2°
2 November – 11 November
at normal
52°
—
October records over 66 years
91.6°1 October 1992All-time high
17.2°9 October 1985All-time low
Climate normals and records are computed from the nearest reference point — Stites (7 mi).
Wed, 1460° / 37°0
60 °
Harpster, Wednesday, 14 October
Clear. High 60°, low 37°.
Pressure30.27 inHg
Wind2.6 mph N
Humidity45%
Visibility6.2 mi
Dew point35°
Thu, 1563° / 32°0
63 °
Harpster, Thursday, 15 October
Clear. High 63°, low 32°.
Pressure30.50 inHg
Wind3.3 mph NW
Humidity54%
Visibility6.2 mi
Dew point40°
Fri, 1668° / 37°0
68 °
Harpster, Friday, 16 October
Clear. High 68°, low 37°.
Pressure30.33 inHg
Wind2.8 mph N
Humidity46%
Visibility6.2 mi
Dew point40°
Sat, 1771° / 42°0
71 °
Harpster, Saturday, 17 October
Partly cloudy. High 71°, low 42°.
Pressure30.06 inHg
Wind4.9 mph N
Humidity47%
Visibility—
Dew point37°
Sun, 1863° / 40°0
63 °
Harpster, Sunday, 18 October
Clear. High 63°, low 40°.
Pressure30.00 inHg
Wind3.7 mph S
Humidity63%
Visibility—
Dew point40°
Mon, 1958° / 41°0.29
58 °
Harpster, Monday, 19 October
Rain. High 58°, low 41°.
Pressure29.77 inHg
Wind7.4 mph N
Humidity51%
Visibility—
Dew point35°
Tue, 2049° / 39°0.28
49 °
Harpster, Tuesday, 20 October
Rain. High 49°, low 39°.
Pressure29.97 inHg
Wind5.4 mph NE
Humidity73%
Visibility—
Dew point38°
Wed, 2149° / 37°0
49 °
Harpster, Wednesday, 21 October
Overcast. High 49°, low 37°.
Pressure30.18 inHg
Wind5.9 mph S
Humidity73%
Visibility—
Dew point36°
Thu, 2243° / 38°0.27
43 °
Harpster, Thursday, 22 October
Rain. High 43°, low 38°.
Pressure30.09 inHg
Wind4.7 mph S
Humidity96%
Visibility—
Dew point39°
Fri, 2341° / 34°0.15
41 °
Harpster, Friday, 23 October
Light rain. High 41°, low 34°.
Pressure30.42 inHg
Wind4.4 mph S
Humidity97%
Visibility—
Dew point39°
Sat, 2449° / 30°0
49 °
Harpster, Saturday, 24 October
Clear. High 49°, low 30°.
Pressure30.45 inHg
Wind5 mph SE
Humidity68%
Visibility—
Dew point32°
Sun, 2549° / 35°0.03
49 °
Harpster, Sunday, 25 October
Light rain. High 49°, low 35°.
Pressure30.33 inHg
Wind6.7 mph N
Humidity58%
Visibility—
Dew point31°
Mon, 2647° / 31°0
47 °
Harpster, Monday, 26 October
Overcast. High 47°, low 31°.
Pressure30.39 inHg
Wind4.9 mph N
Humidity63%
Visibility—
Dew point28°
Tue, 2754° / 31°0
54 °
Harpster, Tuesday, 27 October
Clear. High 54°, low 31°.
Pressure30.33 inHg
Wind4.8 mph S
Humidity49%
Visibility—
Dew point27°
Wed, 2858° / 36°0
58 °
Harpster, Wednesday, 28 October
Clear. High 58°, low 36°.
Pressure30.00 inHg
Wind4 mph S
Humidity42%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2955° / 39°0.1
55 °
Harpster, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.1 in
Chance of precipitation48%
Record high73° (1968)
Record low19° (2019)
Fri, 3055° / 38°0.07
55 °
Harpster, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.07 in
Chance of precipitation33%
Record high75° (2008)
Record low18° (2019)
Sat, 3154° / 38°0.11
54 °
Harpster, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.11 in
Chance of precipitation48%
Record high74° (1988)
Record low21° (2002)
Sun, 0154° / 38°0.14
54 °
Harpster, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.14 in
Chance of precipitation42%
Record high74° (1965)
Record low20° (2002)
Mon, 0254° / 37°0.11
54 °
Harpster, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.11 in
Chance of precipitation45%
Record high69° (1981)
Record low19° (1991)
Tue, 0354° / 36°0.06
54 °
Harpster, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low36°
Average precipitation0.06 in
Chance of precipitation27%
Record high70° (1965)
Record low18° (1973)
Wed, 0453° / 37°0.12
53 °
Harpster, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.12 in
Chance of precipitation53%
Record high71° (1980)
Record low19° (1973)
Thu, 0553° / 37°0.12
53 °
Harpster, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.12 in
Chance of precipitation48%
Record high71° (1975)
Record low9° (1971)
Fri, 0653° / 37°0.14
53 °
Harpster, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.14 in
Chance of precipitation55%
Record high73° (2012)
Record low8° (1971)
Sat, 0752° / 37°0.14
52 °
Harpster, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.14 in
Chance of precipitation53%
Record high71° (1999)
Record low22° (1971)
Sun, 0851° / 35°0.1
51 °
Harpster, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.1 in
Chance of precipitation45%
Record high71° (2016)
Record low22° (1994)
Mon, 0951° / 35°0.11
51 °
Harpster, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.11 in
Chance of precipitation52%
Record high69° (2016)
Record low23° (1986)
Tue, 1050° / 34°0.07
50 °
Harpster, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.07 in
Chance of precipitation37%
Record high69° (2016)
Record low13° (1986)
Wed, 1150° / 34°0.09
50 °
Harpster, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.09 in
Chance of precipitation33%
Record high71° (2016)
Record low17° (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 Harpster, ID 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 Harpster, ID 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.