Monthly outlook for Porthill, ID: average high 47.2°, average low 31°. That is 0.2° below the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 8 days and 2.3 inches. The warmest day looks like 23 October (55.9°), the coolest 2 November (26.1°).
47.2°/31°
Average high / low
−0.2°
Below normal
4 / 8
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
47°
49°
-1.2°
2 November – 11 November
47.7°
44.3°
+1.9°
12 November – 21 November
at normal
40.5°
—
October records over 66 years
84.7°1 October 1992All-time high
4.6°25 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Copeland (8 mi).
Sat, 2449° / 29°0
49 °
Porthill, Saturday, 24 October
Overcast. High 49°, low 29°.
Pressure30.21 inHg
Wind2.9 mph E
Humidity54%
Visibility6.2 mi
Dew point33°
Sun, 2547° / 29°0
47 °
Porthill, Sunday, 25 October
Overcast. High 47°, low 29°.
Pressure30.24 inHg
Wind2.5 mph NE
Humidity57%
Visibility2.7 mi
Dew point27°
Mon, 2647° / 30°0
47 °
Porthill, Monday, 26 October
Overcast. High 47°, low 30°.
Pressure30.12 inHg
Wind1.1 mph SW
Humidity61%
Visibility6.2 mi
Dew point32°
Tue, 2750° / 32°0
50 °
Porthill, Tuesday, 27 October
Overcast. High 50°, low 32°.
Pressure30.09 inHg
Wind2.4 mph S
Humidity71%
Visibility—
Dew point31°
Wed, 2843° / 30°0.08
43 °
Porthill, Wednesday, 28 October
Snow. High 43°, low 30°.
Pressure30.39 inHg
Wind2.7 mph SE
Humidity78%
Visibility—
Dew point33°
Thu, 2948° / 29°0
48 °
Porthill, Thursday, 29 October
Overcast. High 48°, low 29°.
Pressure30.12 inHg
Wind3.3 mph W
Humidity55%
Visibility—
Dew point25°
Fri, 3046° / 32°0.04
46 °
Porthill, Friday, 30 October
Snow. High 46°, low 32°.
Pressure30.00 inHg
Wind3.3 mph SE
Humidity65%
Visibility—
Dew point30°
Sat, 3142° / 36°0.22
42 °
Porthill, Saturday, 31 October
Snow. High 42°, low 36°.
Pressure30.06 inHg
Wind3.3 mph SE
Humidity89%
Visibility—
Dew point36°
Sun, 0142° / 34°0
42 °
Porthill, Sunday, 1 November
Overcast. High 42°, low 34°.
Pressure30.36 inHg
Wind2.4 mph E
Humidity76%
Visibility—
Dew point33°
Mon, 0245° / 26°0
45 °
Porthill, Monday, 2 November
Partly cloudy. High 45°, low 26°.
Pressure30.62 inHg
Wind2.8 mph W
Humidity75%
Visibility—
Dew point31°
Tue, 0345° / 26°0
45 °
Porthill, Tuesday, 3 November
Overcast. High 45°, low 26°.
Pressure30.74 inHg
Wind2.2 mph W
Humidity77%
Visibility—
Dew point31°
Wed, 0449° / 29°0
49 °
Porthill, Wednesday, 4 November
Partly cloudy. High 49°, low 29°.
Pressure30.56 inHg
Wind2.6 mph NW
Humidity73%
Visibility—
Dew point32°
Thu, 0551° / 30°0
51 °
Porthill, Thursday, 5 November
Mostly clear. High 51°, low 30°.
Pressure30.42 inHg
Wind2.3 mph W
Humidity67%
Visibility—
Dew point32°
Fri, 0652° / 32°0
52 °
Porthill, Friday, 6 November
Mostly clear. High 52°, low 32°.
Pressure30.27 inHg
Wind2.8 mph E
Humidity66%
Visibility—
Dew point33°
Sat, 0745° / 33°0
45 °
Porthill, Saturday, 7 November
Overcast. High 45°, low 33°.
Pressure30.36 inHg
Wind2.4 mph W
Humidity70%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0844° / 32°0.13
44 °
Porthill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.13 in
Chance of precipitation62%
Record high60° (2016)
Record low10° (1966)
Mon, 0943° / 32°0.13
43 °
Porthill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.13 in
Chance of precipitation55%
Record high61° (2016)
Record low8° (1986)
Tue, 1042° / 31°0.13
42 °
Porthill, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.13 in
Chance of precipitation52%
Record high56° (2016)
Record low6° (1986)
Wed, 1142° / 31°0.15
42 °
Porthill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.15 in
Chance of precipitation47%
Record high57° (2016)
Record low-1° (1985)
Thu, 1243° / 32°0.17
43 °
Porthill, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.17 in
Chance of precipitation58%
Record high57° (2016)
Record low-1° (1985)
Fri, 1342° / 32°0.16
42 °
Porthill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.16 in
Chance of precipitation53%
Record high53° (2025)
Record low15° (1985)
Sat, 1442° / 32°0.18
42 °
Porthill, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.18 in
Chance of precipitation52%
Record high58° (1999)
Record low11° (1982)
Sun, 1542° / 31°0.14
42 °
Porthill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.14 in
Chance of precipitation57%
Record high57° (2001)
Record low10° (1964)
Mon, 1641° / 32°0.21
41 °
Porthill, Monday, 16 November
Climate normal for this date — 60-year average.
Average high41°
Average low32°
Average precipitation0.21 in
Chance of precipitation67%
Record high54° (1999)
Record low14° (1961)
Tue, 1740° / 30°0.2
40 °
Porthill, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high40°
Average low30°
Average precipitation0.2 in
Chance of precipitation65%
Record high54° (2008)
Record low10° (2000)
Wed, 1839° / 29°0.15
39 °
Porthill, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high39°
Average low29°
Average precipitation0.15 in
Chance of precipitation52%
Record high54° (2008)
Record low3° (1985)
Thu, 1939° / 29°0.15
39 °
Porthill, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high39°
Average low29°
Average precipitation0.15 in
Chance of precipitation52%
Record high47° (2008)
Record low4° (1985)
Fri, 2039° / 28°0.2
39 °
Porthill, Friday, 20 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.2 in
Chance of precipitation52%
Record high49° (2018)
Record low-9° (1977)
Sat, 2138° / 28°0.21
38 °
Porthill, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high38°
Average low28°
Average precipitation0.21 in
Chance of precipitation57%
Record high51° (2023)
Record low-12° (1977)
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 Porthill, 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 Porthill, 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.