Monthly outlook for Millbrook Colony, SD: average high 60.2°, average low 41.9°. That is 2.8° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 22 October (75.1°), the coolest 27 October (27.8°).
60.2°/41.9°
Average high / low
+2.8°
Above normal
3 / 3
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
60.4°
57.2°
+1.8°
30 October – 8 November
59.9°
51.3°
+4.8°
9 November – 18 November
at normal
45.5°
—
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).
Wed, 2172° / 48°0
72 °
Millbrook Colony, Wednesday, 21 October
Clear. High 72°, low 48°.
Pressure30.18 inHg
Wind3 mph E
Humidity66%
Visibility6.2 mi
Dew point53°
Thu, 2275° / 54°0
75 °
Millbrook Colony, Thursday, 22 October
Clear. High 75°, low 54°.
Pressure30.15 inHg
Wind10.2 mph SE
Humidity64%
Visibility6.2 mi
Dew point56°
Fri, 2375° / 61°0
75 °
Millbrook Colony, Friday, 23 October
Overcast. High 75°, low 61°.
Pressure29.91 inHg
Wind18.4 mph SE
Humidity56%
Visibility6.2 mi
Dew point50°
Sat, 2467° / 48°0.17
67 °
Millbrook Colony, Saturday, 24 October
Rain. High 67°, low 48°.
Pressure30.27 inHg
Wind17.2 mph NW
Humidity83%
Visibility—
Dew point49°
Sun, 2554° / 41°0.23
54 °
Millbrook Colony, Sunday, 25 October
Light rain. High 54°, low 41°.
Pressure30.47 inHg
Wind8.9 mph E
Humidity42%
Visibility—
Dew point29°
Mon, 2643° / 36°0.06
43 °
Millbrook Colony, Monday, 26 October
Snow. High 43°, low 36°.
Pressure30.47 inHg
Wind13.3 mph NW
Humidity62%
Visibility—
Dew point27°
Tue, 2741° / 28°0
41 °
Millbrook Colony, Tuesday, 27 October
Mostly clear. High 41°, low 28°.
Pressure30.71 inHg
Wind17.5 mph NW
Humidity32%
Visibility—
Dew point9°
Wed, 2856° / 31°0
56 °
Millbrook Colony, Wednesday, 28 October
Clear. High 56°, low 31°.
Pressure30.12 inHg
Wind13.2 mph S
Humidity42%
Visibility—
Dew point27°
Thu, 2952° / 32°0
52 °
Millbrook Colony, Thursday, 29 October
Clear. High 52°, low 32°.
Pressure30.27 inHg
Wind13.8 mph NW
Humidity34%
Visibility—
Dew point18°
Fri, 3049° / 28°0
49 °
Millbrook Colony, Friday, 30 October
Clear. High 49°, low 28°.
Pressure30.45 inHg
Wind13.8 mph S
Humidity36%
Visibility—
Dew point17°
Sat, 3163° / 41°0
63 °
Millbrook Colony, Saturday, 31 October
Overcast. High 63°, low 41°.
Pressure29.91 inHg
Wind15.3 mph S
Humidity44%
Visibility—
Dew point35°
Sun, 0152° / 33°0
52 °
Millbrook Colony, Sunday, 1 November
Clear. High 52°, low 33°.
Pressure30.21 inHg
Wind8.9 mph N
Humidity37%
Visibility—
Dew point21°
Mon, 0264° / 40°0
64 °
Millbrook Colony, Monday, 2 November
Partly cloudy. High 64°, low 40°.
Pressure29.94 inHg
Wind20.6 mph S
Humidity51%
Visibility—
Dew point40°
Tue, 0366° / 55°0.02
66 °
Millbrook Colony, Tuesday, 3 November
Light rain. High 66°, low 55°.
Pressure29.77 inHg
Wind15.6 mph S
Humidity59%
Visibility—
Dew point49°
Wed, 0466° / 50°0
66 °
Millbrook Colony, Wednesday, 4 November
Overcast. High 66°, low 50°.
Pressure29.94 inHg
Wind13.8 mph NW
Humidity39%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 1844° / 28°0.05
44 °
Millbrook Colony, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.05 in
Chance of precipitation27%
Record high65° (2020)
Record low0° (1996)
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.