Monthly outlook for Millerdale Colony, SD: average high 87.2°, average low 65.3°. That is 2.4° above the climate normal for August. Precipitation is expected on 6 days (about 2.0 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 22 August (97.6°), the coolest 16 August (57.3°).
87.2°/65.3°
Average high / low
+2.4°
Above normal
6 / 4
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
83.9°
82.9°
+0.5°
19 August – 28 August
92.8°
82.9°
+5.5°
29 August – 7 September
at normal
80.7°
—
August records over 66 years
106.2°13 August 1965All-time high
45.3°12 August 1964All-time low
Climate normals and records are computed from the nearest reference point — Ree Heights (9 mi).
Mon, 1094° / 62°0.17
94 °
Millerdale Colony, Monday, 10 August
Rain. High 94°, low 62°.
Pressure29.83 inHg
Wind8.8 mph SE
Humidity37%
Visibility6.2 mi
Dew point59°
Tue, 1189° / 61°0.34
89 °
Millerdale Colony, Tuesday, 11 August
Heavy rain. High 89°, low 61°.
Pressure29.85 inHg
Wind11.7 mph NE
Humidity48%
Visibility6.2 mi
Dew point59°
Wed, 1288° / 64°0.47
88 °
Millerdale Colony, Wednesday, 12 August
Heavy rain. High 88°, low 64°.
Pressure29.85 inHg
Wind2.6 mph SE
Humidity49%
Visibility6.2 mi
Dew point62°
Thu, 1377° / 67°0.21
77 °
Millerdale Colony, Thursday, 13 August
Light rain. High 77°, low 67°.
Pressure29.91 inHg
Wind8.8 mph E
Humidity79%
Visibility6.2 mi
Dew point67°
Fri, 1478° / 66°0
78 °
Millerdale Colony, Friday, 14 August
Overcast. High 78°, low 66°.
Pressure29.91 inHg
Wind13.6 mph E
Humidity58%
Visibility—
Dew point60°
Sat, 1576° / 64°0.05
76 °
Millerdale Colony, Saturday, 15 August
Light rain. High 76°, low 64°.
Pressure29.94 inHg
Wind8.8 mph NW
Humidity72%
Visibility—
Dew point63°
Sun, 1680° / 57°0
80 °
Millerdale Colony, Sunday, 16 August
Overcast. High 80°, low 57°.
Pressure30.06 inHg
Wind10.4 mph SE
Humidity54%
Visibility—
Dew point55°
Mon, 1785° / 65°0.78
85 °
Millerdale Colony, Monday, 17 August
Heavy rain. High 85°, low 65°.
Pressure29.77 inHg
Wind13.7 mph SE
Humidity72%
Visibility—
Dew point64°
Tue, 1889° / 66°0
89 °
Millerdale Colony, Tuesday, 18 August
Partly cloudy. High 89°, low 66°.
Pressure29.91 inHg
Wind10.1 mph W
Humidity32%
Visibility—
Dew point49°
Wed, 1996° / 67°0
96 °
Millerdale Colony, Wednesday, 19 August
Clear. High 96°, low 67°.
Pressure29.83 inHg
Wind14.5 mph S
Humidity37%
Visibility—
Dew point57°
Thu, 2093° / 72°0
93 °
Millerdale Colony, Thursday, 20 August
Overcast. High 93°, low 72°.
Pressure29.85 inHg
Wind10.9 mph S
Humidity21%
Visibility—
Dew point43°
Fri, 2192° / 71°0
92 °
Millerdale Colony, Friday, 21 August
Partly cloudy. High 92°, low 71°.
Pressure29.94 inHg
Wind14.4 mph SE
Humidity33%
Visibility—
Dew point53°
Sat, 2298° / 72°0
98 °
Millerdale Colony, Saturday, 22 August
Mostly clear. High 98°, low 72°.
Pressure29.80 inHg
Wind18.2 mph S
Humidity27%
Visibility—
Dew point52°
Sun, 2388° / 65°0
88 °
Millerdale Colony, Sunday, 23 August
Partly cloudy. High 88°, low 65°.
Pressure30.00 inHg
Wind13.2 mph NE
Humidity38%
Visibility—
Dew point54°
Mon, 2489° / 64°0.01
89 °
Millerdale Colony, Monday, 24 August
Light rain. High 89°, low 64°.
Pressure30.03 inHg
Wind12.2 mph SE
Humidity38%
Visibility—
Dew point54°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 64°0.03
83 °
Millerdale Colony, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.03 in
Chance of precipitation18%
Record high98° (1991)
Record low49° (1964)
Wed, 2683° / 63°0.07
83 °
Millerdale Colony, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low63°
Average precipitation0.07 in
Chance of precipitation28%
Record high102° (1991)
Record low47° (1992)
Thu, 2783° / 62°0.06
83 °
Millerdale Colony, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low62°
Average precipitation0.06 in
Chance of precipitation27%
Record high101° (1973)
Record low46° (1992)
Fri, 2882° / 64°0.06
82 °
Millerdale Colony, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.06 in
Chance of precipitation25%
Record high98° (1991)
Record low47° (1987)
Sat, 2983° / 63°0.05
83 °
Millerdale Colony, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low63°
Average precipitation0.05 in
Chance of precipitation20%
Record high101° (2012)
Record low49° (1988)
Sun, 3082° / 62°0.07
82 °
Millerdale Colony, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low62°
Average precipitation0.07 in
Chance of precipitation23%
Record high97° (1961)
Record low50° (1992)
Mon, 3181° / 63°0.04
81 °
Millerdale Colony, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.04 in
Chance of precipitation17%
Record high95° (1979)
Record low47° (1992)
Tue, 0181° / 62°0.07
81 °
Millerdale Colony, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.07 in
Chance of precipitation22%
Record high97° (1983)
Record low44° (1965)
Wed, 0281° / 62°0.12
81 °
Millerdale Colony, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.12 in
Chance of precipitation22%
Record high101° (1983)
Record low46° (1974)
Thu, 0381° / 61°0.05
81 °
Millerdale Colony, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low61°
Average precipitation0.05 in
Chance of precipitation22%
Record high97° (2005)
Record low42° (1974)
Fri, 0481° / 61°0.08
81 °
Millerdale Colony, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low61°
Average precipitation0.08 in
Chance of precipitation23%
Record high97° (1979)
Record low44° (1962)
Sat, 0580° / 61°0.09
80 °
Millerdale Colony, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0.09 in
Chance of precipitation15%
Record high100° (1978)
Record low42° (1965)
Sun, 0680° / 60°0.04
80 °
Millerdale Colony, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low60°
Average precipitation0.04 in
Chance of precipitation13%
Record high103° (1976)
Record low42° (2025)
Mon, 0778° / 58°0.09
78 °
Millerdale Colony, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low58°
Average precipitation0.09 in
Chance of precipitation28%
Record high97° (1980)
Record low41° (1986)
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 Millerdale 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 Millerdale 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.