Monthly outlook for Harpster, ID: average high 57.3°, average low 37.7°. That is 2.2° below the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 6 days and 1.4 inches. The warmest day looks like 17 October (70.7°), the coolest 13 October (31.6°).
57.3°/37.7°
Average high / low
−2.2°
Below normal
4 / 6
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
57.6°
62.9°
-2.9°
23 October – 1 November
56.8°
57°
-0.1°
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
Mostly clear. High 60°, low 37°.
Pressure30.27 inHg
Wind3.5 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
Wind2.9 mph NW
Humidity54%
Visibility6.2 mi
Dew point40°
Fri, 1667° / 36°0
67 °
Harpster, Friday, 16 October
Partly cloudy. High 67°, low 36°.
Pressure30.33 inHg
Wind3 mph N
Humidity44%
Visibility6.2 mi
Dew point39°
Sat, 1771° / 42°0
71 °
Harpster, Saturday, 17 October
Overcast. High 71°, low 42°.
Pressure30.09 inHg
Wind6.1 mph N
Humidity46%
Visibility—
Dew point37°
Sun, 1864° / 41°0
64 °
Harpster, Sunday, 18 October
Clear. High 64°, low 41°.
Pressure30.00 inHg
Wind2.6 mph S
Humidity65%
Visibility—
Dew point41°
Mon, 1949° / 42°0.12
49 °
Harpster, Monday, 19 October
Light rain. High 49°, low 42°.
Pressure29.88 inHg
Wind6.4 mph NW
Humidity53%
Visibility—
Dew point32°
Tue, 2048° / 38°0.05
48 °
Harpster, Tuesday, 20 October
Light rain. High 48°, low 38°.
Pressure30.03 inHg
Wind5.1 mph N
Humidity79%
Visibility—
Dew point39°
Wed, 2152° / 34°0
52 °
Harpster, Wednesday, 21 October
Clear. High 52°, low 34°.
Pressure30.18 inHg
Wind5.7 mph S
Humidity59%
Visibility—
Dew point32°
Thu, 2251° / 38°0.2
51 °
Harpster, Thursday, 22 October
Light rain. High 51°, low 38°.
Pressure30.03 inHg
Wind14.3 mph SW
Humidity73%
Visibility—
Dew point39°
Fri, 2347° / 35°0.12
47 °
Harpster, Friday, 23 October
Light rain. High 47°, low 35°.
Pressure30.56 inHg
Wind6.4 mph S
Humidity91%
Visibility—
Dew point39°
Sat, 2457° / 32°0
57 °
Harpster, Saturday, 24 October
Mostly clear. High 57°, low 32°.
Pressure30.53 inHg
Wind5.8 mph N
Humidity45%
Visibility—
Dew point26°
Sun, 2560° / 39°0
60 °
Harpster, Sunday, 25 October
Clear. High 60°, low 39°.
Pressure30.42 inHg
Wind4.1 mph N
Humidity48%
Visibility—
Dew point32°
Mon, 2661° / 42°0
61 °
Harpster, Monday, 26 October
Overcast. High 61°, low 42°.
Pressure30.06 inHg
Wind5 mph S
Humidity55%
Visibility—
Dew point38°
Tue, 2758° / 44°0
58 °
Harpster, Tuesday, 27 October
Overcast. High 58°, low 44°.
Pressure29.91 inHg
Wind9.7 mph W
Humidity37%
Visibility—
Dew point29°
Wed, 2857° / 40°0
57 °
Harpster, Wednesday, 28 October
Overcast. High 57°, low 40°.
Pressure30.18 inHg
Wind4.3 mph S
Humidity51%
Visibility—
Dew point33°
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.