Monthly outlook for Porthill, ID: average high 46.9°, average low 35.5°. That is 0.8° above the climate normal for October. Precipitation is expected on 6 days (about 2.7 inches), against a normal of 8 days and 2.4 inches. The warmest day looks like 10 November (54.8°), the coolest 29 October (26.7°).
46.9°/35.5°
Average high / low
+0.8°
Above normal
6 / 8
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
44.9°
46.9°
-1.1°
6 November – 15 November
50.3°
42.8°
+4.2°
16 November – 25 November
at normal
38.3°
—
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).
Wed, 2843° / 34°0.44
43 °
Porthill, Wednesday, 28 October
Snow. High 43°, low 34°.
Pressure29.97 inHg
Wind3.6 mph E
Humidity95%
Visibility6.2 mi
Dew point37°
Thu, 2939° / 27°0.05
39 °
Porthill, Thursday, 29 October
Snow. High 39°, low 27°.
Pressure30.18 inHg
Wind0.8 mph N
Humidity78%
Visibility6.2 mi
Dew point33°
Fri, 3040° / 27°0
40 °
Porthill, Friday, 30 October
Overcast. High 40°, low 27°.
Pressure30.03 inHg
Wind0.5 mph NW
Humidity75%
Visibility6.2 mi
Dew point31°
Sat, 3143° / 28°0
43 °
Porthill, Saturday, 31 October
Overcast. High 43°, low 28°.
Pressure30.09 inHg
Wind0.8 mph SE
Humidity76%
Visibility—
Dew point28°
Sun, 0145° / 30°0.06
45 °
Porthill, Sunday, 1 November
Light snow. High 45°, low 30°.
Pressure30.12 inHg
Wind1.9 mph E
Humidity88%
Visibility—
Dew point33°
Mon, 0247° / 30°0
47 °
Porthill, Monday, 2 November
Clear. High 47°, low 30°.
Pressure30.45 inHg
Wind2.8 mph W
Humidity74%
Visibility—
Dew point33°
Tue, 0348° / 31°0
48 °
Porthill, Tuesday, 3 November
Overcast. High 48°, low 31°.
Pressure30.39 inHg
Wind3.6 mph W
Humidity74%
Visibility—
Dew point33°
Wed, 0448° / 33°0
48 °
Porthill, Wednesday, 4 November
Overcast. High 48°, low 33°.
Pressure30.12 inHg
Wind2.9 mph W
Humidity70%
Visibility—
Dew point33°
Thu, 0549° / 39°0.03
49 °
Porthill, Thursday, 5 November
Snow. High 49°, low 39°.
Pressure30.12 inHg
Wind2.5 mph SE
Humidity90%
Visibility—
Dew point41°
Fri, 0646° / 44°0.52
46 °
Porthill, Friday, 6 November
Rain. High 46°, low 44°.
Pressure29.88 inHg
Wind1.9 mph E
Humidity98%
Visibility—
Dew point44°
Sat, 0750° / 46°1.29
50 °
Porthill, Saturday, 7 November
Rain. High 50°, low 46°.
Pressure29.59 inHg
Wind5.4 mph SW
Humidity99%
Visibility—
Dew point48°
Sun, 0849° / 42°0.01
49 °
Porthill, Sunday, 8 November
Light rain. High 49°, low 42°.
Pressure30.09 inHg
Wind4.2 mph SW
Humidity85%
Visibility—
Dew point43°
Mon, 0951° / 39°0
51 °
Porthill, Monday, 9 November
Overcast. High 51°, low 39°.
Pressure30.33 inHg
Wind2.3 mph E
Humidity81%
Visibility—
Dew point41°
Tue, 1055° / 39°0
55 °
Porthill, Tuesday, 10 November
Partly cloudy. High 55°, low 39°.
Pressure30.15 inHg
Wind2.1 mph SE
Humidity73%
Visibility—
Dew point39°
Wed, 1151° / 38°0
51 °
Porthill, Wednesday, 11 November
Overcast. High 51°, low 38°.
Pressure30.06 inHg
Wind3.3 mph W
Humidity72%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 2237° / 26°0.16
37 °
Porthill, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.16 in
Chance of precipitation50%
Record high52° (2017)
Record low-5° (1977)
Mon, 2336° / 26°0.19
36 °
Porthill, Monday, 23 November
Climate normal for this date — 60-year average.
Average high36°
Average low26°
Average precipitation0.19 in
Chance of precipitation62%
Record high55° (2017)
Record low-13° (1993)
Tue, 2437° / 28°0.19
37 °
Porthill, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high37°
Average low28°
Average precipitation0.19 in
Chance of precipitation62%
Record high47° (2019)
Record low-8° (1985)
Wed, 2537° / 27°0.19
37 °
Porthill, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high37°
Average low27°
Average precipitation0.19 in
Chance of precipitation53%
Record high49° (2017)
Record low-1° (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 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.