Monthly outlook for McMillan, ID: average high 61.7°, average low 43.3°. That is 1.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 19 October (75.8°), the coolest 25 October (33.8°).
61.7°/43.3°
Average high / low
+1.1°
Above normal
3 / 3
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
66°
61.9°
+2.3°
26 October – 4 November
54.5°
55.4°
-0.5°
5 November – 14 November
at normal
51.2°
—
October records over 66 years
91.4°2 October 2010All-time high
12.4°30 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Hansen (6 mi).
Sat, 1774° / 41°0
74 °
McMillan, Saturday, 17 October
Mostly clear. High 74°, low 41°.
Pressure30.24 inHg
Wind5.9 mph E
Humidity33%
Visibility6.2 mi
Dew point34°
Sun, 1873° / 42°0
73 °
McMillan, Sunday, 18 October
Clear. High 73°, low 42°.
Pressure30.03 inHg
Wind4.7 mph E
Humidity37%
Visibility6.2 mi
Dew point37°
Mon, 1976° / 45°0
76 °
McMillan, Monday, 19 October
Clear. High 76°, low 45°.
Pressure29.85 inHg
Wind7.4 mph E
Humidity30%
Visibility6.2 mi
Dew point36°
Tue, 2071° / 50°0.01
71 °
McMillan, Tuesday, 20 October
Light rain. High 71°, low 50°.
Pressure29.83 inHg
Wind7.9 mph S
Humidity48%
Visibility—
Dew point43°
Wed, 2171° / 51°0.01
71 °
McMillan, Wednesday, 21 October
Light rain. High 71°, low 51°.
Pressure29.91 inHg
Wind11.2 mph E
Humidity47%
Visibility—
Dew point42°
Thu, 2265° / 53°0.05
65 °
McMillan, Thursday, 22 October
Light rain. High 65°, low 53°.
Pressure29.91 inHg
Wind8.8 mph NE
Humidity51%
Visibility—
Dew point43°
Fri, 2359° / 48°0.06
59 °
McMillan, Friday, 23 October
Light rain. High 59°, low 48°.
Pressure29.77 inHg
Wind30.2 mph W
Humidity43%
Visibility—
Dew point33°
Sat, 2447° / 38°0
47 °
McMillan, Saturday, 24 October
Overcast. High 47°, low 38°.
Pressure30.24 inHg
Wind24.2 mph W
Humidity43%
Visibility—
Dew point21°
Sun, 2553° / 34°0
53 °
McMillan, Sunday, 25 October
Overcast. High 53°, low 34°.
Pressure30.33 inHg
Wind7.1 mph SW
Humidity17%
Visibility—
Dew point3°
Mon, 2659° / 39°0
59 °
McMillan, Monday, 26 October
Overcast. High 59°, low 39°.
Pressure30.09 inHg
Wind12.4 mph NW
Humidity14%
Visibility—
Dew point5°
Tue, 2758° / 48°0
58 °
McMillan, Tuesday, 27 October
Overcast. High 58°, low 48°.
Pressure29.85 inHg
Wind7.5 mph SW
Humidity19%
Visibility—
Dew point15°
Wed, 2849° / 39°0.17
49 °
McMillan, Wednesday, 28 October
Snow. High 49°, low 39°.
Pressure29.80 inHg
Wind25.9 mph W
Humidity48%
Visibility—
Dew point26°
Thu, 2948° / 37°0.02
48 °
McMillan, Thursday, 29 October
Light rain. High 48°, low 37°.
Pressure30.12 inHg
Wind24.3 mph W
Humidity59%
Visibility—
Dew point29°
Fri, 3060° / 42°0
60 °
McMillan, Friday, 30 October
Overcast. High 60°, low 42°.
Pressure30.12 inHg
Wind16 mph SW
Humidity32%
Visibility—
Dew point24°
Sat, 3154° / 45°0.03
54 °
McMillan, Saturday, 31 October
Light rain. High 54°, low 45°.
Pressure29.97 inHg
Wind18.5 mph W
Humidity41%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0155° / 35°0.02
55 °
McMillan, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low35°
Average precipitation0.02 in
Chance of precipitation17%
Record high73° (1965)
Record low18° (2002)
Mon, 0254° / 34°0.05
54 °
McMillan, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low34°
Average precipitation0.05 in
Chance of precipitation22%
Record high70° (2020)
Record low18° (2002)
Tue, 0354° / 33°0.05
54 °
McMillan, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low33°
Average precipitation0.05 in
Chance of precipitation15%
Record high72° (2020)
Record low17° (1991)
Wed, 0454° / 35°0.03
54 °
McMillan, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low35°
Average precipitation0.03 in
Chance of precipitation18%
Record high71° (1980)
Record low22° (2002)
Thu, 0554° / 35°0.04
54 °
McMillan, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low35°
Average precipitation0.04 in
Chance of precipitation22%
Record high73° (1980)
Record low22° (1961)
Fri, 0654° / 35°0.04
54 °
McMillan, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low35°
Average precipitation0.04 in
Chance of precipitation25%
Record high73° (1999)
Record low18° (1971)
Sat, 0753° / 35°0.04
53 °
McMillan, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low35°
Average precipitation0.04 in
Chance of precipitation27%
Record high75° (2006)
Record low21° (1971)
Sun, 0851° / 33°0.06
51 °
McMillan, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.06 in
Chance of precipitation33%
Record high67° (1995)
Record low21° (1994)
Mon, 0951° / 32°0.06
51 °
McMillan, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.06 in
Chance of precipitation35%
Record high67° (1973)
Record low23° (2018)
Tue, 1051° / 32°0.04
51 °
McMillan, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.04 in
Chance of precipitation23%
Record high65° (1989)
Record low17° (2000)
Wed, 1150° / 32°0.04
50 °
McMillan, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.04 in
Chance of precipitation25%
Record high68° (1999)
Record low18° (2000)
Thu, 1251° / 32°0.05
51 °
McMillan, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.05 in
Chance of precipitation28%
Record high72° (1999)
Record low14° (2014)
Fri, 1349° / 32°0.05
49 °
McMillan, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.05 in
Chance of precipitation25%
Record high70° (2025)
Record low12° (1978)
Sat, 1448° / 31°0.05
48 °
McMillan, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.05 in
Chance of precipitation27%
Record high69° (1999)
Record low6° (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 McMillan, 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 McMillan, 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.