Monthly outlook for Millbrook Colony, SD: average high 62.4°, average low 44.2°. That is 3.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 22 October (74.6°), the coolest 27 October (33.6°).
62.4°/44.2°
Average high / low
+3.7°
Above normal
3 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
64.4°
57.8°
+3.7°
29 October – 7 November
58.9°
51.7°
+4°
8 November – 17 November
at normal
46°
—
October records over 66 years
92.5°3 October 2025All-time high
7.2°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Ethan (10 mi).
Tue, 2069° / 47°0
69 °
Millbrook Colony, Tuesday, 20 October
Clear. High 69°, low 47°.
Pressure30.18 inHg
Wind11.4 mph S
Humidity61%
Visibility6.2 mi
Dew point48°
Wed, 2170° / 49°0
70 °
Millbrook Colony, Wednesday, 21 October
Clear. High 70°, low 49°.
Pressure30.21 inHg
Wind3.4 mph E
Humidity68%
Visibility6.2 mi
Dew point53°
Thu, 2275° / 54°0
75 °
Millbrook Colony, Thursday, 22 October
Mostly clear. High 75°, low 54°.
Pressure30.15 inHg
Wind10.3 mph S
Humidity67%
Visibility6.2 mi
Dew point56°
Fri, 2371° / 59°0
71 °
Millbrook Colony, Friday, 23 October
Overcast. High 71°, low 59°.
Pressure29.94 inHg
Wind21.7 mph SE
Humidity53%
Visibility—
Dew point50°
Sat, 2468° / 48°0.13
68 °
Millbrook Colony, Saturday, 24 October
Light rain. High 68°, low 48°.
Pressure30.03 inHg
Wind19.2 mph SW
Humidity46%
Visibility—
Dew point46°
Sun, 2556° / 41°0
56 °
Millbrook Colony, Sunday, 25 October
Mostly clear. High 56°, low 41°.
Pressure30.30 inHg
Wind15.5 mph E
Humidity29%
Visibility—
Dew point20°
Mon, 2654° / 41°0
54 °
Millbrook Colony, Monday, 26 October
Overcast. High 54°, low 41°.
Pressure30.03 inHg
Wind17.4 mph N
Humidity45%
Visibility—
Dew point31°
Tue, 2752° / 34°0
52 °
Millbrook Colony, Tuesday, 27 October
Clear. High 52°, low 34°.
Pressure30.24 inHg
Wind8.7 mph SE
Humidity43%
Visibility—
Dew point25°
Wed, 2864° / 37°0
64 °
Millbrook Colony, Wednesday, 28 October
Partly cloudy. High 64°, low 37°.
Pressure29.94 inHg
Wind18.9 mph S
Humidity59%
Visibility—
Dew point42°
Thu, 2968° / 52°0.18
68 °
Millbrook Colony, Thursday, 29 October
Rain. High 68°, low 52°.
Pressure29.53 inHg
Wind23.4 mph SE
Humidity80%
Visibility—
Dew point53°
Fri, 3053° / 44°0.3
53 °
Millbrook Colony, Friday, 30 October
Rain. High 53°, low 44°.
Pressure29.62 inHg
Wind29.2 mph W
Humidity33%
Visibility—
Dew point24°
Sat, 3153° / 35°0
53 °
Millbrook Colony, Saturday, 31 October
Mostly clear. High 53°, low 35°.
Pressure30.03 inHg
Wind16.5 mph W
Humidity26%
Visibility—
Dew point14°
Sun, 0153° / 36°0
53 °
Millbrook Colony, Sunday, 1 November
Overcast. High 53°, low 36°.
Pressure29.83 inHg
Wind18.7 mph NW
Humidity40%
Visibility—
Dew point27°
Mon, 0265° / 39°0
65 °
Millbrook Colony, Monday, 2 November
Partly cloudy. High 65°, low 39°.
Pressure29.74 inHg
Wind17.8 mph S
Humidity32%
Visibility—
Dew point27°
Tue, 0361° / 50°0
61 °
Millbrook Colony, Tuesday, 3 November
Mostly clear. High 61°, low 50°.
Pressure29.44 inHg
Wind15.7 mph S
Humidity48%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0451° / 33°0.01
51 °
Millbrook Colony, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.01 in
Chance of precipitation7%
Record high74° (2020)
Record low-10° (1991)
Thu, 0551° / 34°0.03
51 °
Millbrook Colony, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.03 in
Chance of precipitation17%
Record high75° (2001)
Record low13° (2003)
Fri, 0650° / 33°0.02
50 °
Millbrook Colony, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.02 in
Chance of precipitation15%
Record high80° (2020)
Record low4° (2003)
Sat, 0751° / 33°0.03
51 °
Millbrook Colony, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.03 in
Chance of precipitation13%
Record high76° (2020)
Record low-3° (1991)
Sun, 0849° / 33°0.07
49 °
Millbrook Colony, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.07 in
Chance of precipitation15%
Record high76° (1999)
Record low2° (1991)
Mon, 0947° / 32°0.13
47 °
Millbrook Colony, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.13 in
Chance of precipitation25%
Record high71° (1999)
Record low12° (2018)
Tue, 1045° / 29°0.04
45 °
Millbrook Colony, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.04 in
Chance of precipitation18%
Record high65° (2016)
Record low2° (1986)
Wed, 1144° / 28°0.04
44 °
Millbrook Colony, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.04 in
Chance of precipitation17%
Record high71° (2005)
Record low-5° (1986)
Thu, 1244° / 28°0.05
44 °
Millbrook Colony, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.05 in
Chance of precipitation23%
Record high67° (1999)
Record low2° (1966)
Fri, 1347° / 29°0.03
47 °
Millbrook Colony, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high72° (1999)
Record low-11° (1986)
Sat, 1446° / 31°0.02
46 °
Millbrook Colony, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high77° (2025)
Record low6° (2014)
Sun, 1546° / 29°0.05
46 °
Millbrook Colony, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.05 in
Chance of precipitation23%
Record high67° (2001)
Record low3° (2000)
Mon, 1646° / 29°0.05
46 °
Millbrook Colony, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.05 in
Chance of precipitation8%
Record high71° (2001)
Record low0° (2014)
Tue, 1745° / 29°0.05
45 °
Millbrook Colony, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.05 in
Chance of precipitation15%
Record high69° (2001)
Record low2° (2000)
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 Millbrook Colony, SD 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 Millbrook Colony, SD 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.