Monthly outlook for Red Shirt, SD: average high 90.5°, average low 68.9°. That is 4° above the climate normal for August. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 17 August (100.4°), the coolest 14 August (62.5°).
90.5°/68.9°
Average high / low
+4°
Above normal
4 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
89.2°
83.2°
+3.3°
19 August – 28 August
92.6°
83.1°
+5.3°
29 August – 7 September
at normal
81°
—
August records over 66 years
102.7°29 August 2012All-time high
41°23 August 2015All-time low
Climate normals and records are computed from the nearest reference point — Fairburn (16 mi).
Mon, 10100° / 66°0
100 °
Red Shirt, Monday, 10 August
Partly cloudy. High 100°, low 66°.
Pressure29.71 inHg
Wind4.2 mph E
Humidity22%
Visibility6.2 mi
Dew point48°
Tue, 1194° / 67°0.03
94 °
Red Shirt, Tuesday, 11 August
Light rain. High 94°, low 67°.
Pressure29.83 inHg
Wind10.8 mph E
Humidity40%
Visibility6.2 mi
Dew point59°
Wed, 1297° / 69°0.3
97 °
Red Shirt, Wednesday, 12 August
Rain. High 97°, low 69°.
Pressure29.80 inHg
Wind9.4 mph SE
Humidity34%
Visibility6.2 mi
Dew point59°
Thu, 1367° / 63°0.66
67 °
Red Shirt, Thursday, 13 August
Rain. High 67°, low 63°.
Pressure29.97 inHg
Wind20.2 mph E
Humidity83%
Visibility—
Dew point60°
Fri, 1474° / 63°0.02
74 °
Red Shirt, Friday, 14 August
Light rain. High 74°, low 63°.
Pressure30.00 inHg
Wind14.8 mph SE
Humidity75%
Visibility—
Dew point58°
Sat, 1578° / 65°0.18
78 °
Red Shirt, Saturday, 15 August
Light rain. High 78°, low 65°.
Pressure30.09 inHg
Wind17.8 mph N
Humidity54%
Visibility—
Dew point58°
Sun, 1689° / 68°0.03
89 °
Red Shirt, Sunday, 16 August
Light rain. High 89°, low 68°.
Pressure30.09 inHg
Wind14.5 mph SE
Humidity42%
Visibility—
Dew point55°
Mon, 17100° / 72°0
100 °
Red Shirt, Monday, 17 August
Clear. High 100°, low 72°.
Pressure29.80 inHg
Wind20.3 mph W
Humidity20%
Visibility—
Dew point46°
Tue, 1898° / 76°0
98 °
Red Shirt, Tuesday, 18 August
Overcast. High 98°, low 76°.
Pressure29.77 inHg
Wind11.3 mph NE
Humidity21%
Visibility—
Dew point47°
Wed, 1998° / 78°0
98 °
Red Shirt, Wednesday, 19 August
Overcast. High 98°, low 78°.
Pressure29.80 inHg
Wind13.6 mph N
Humidity25%
Visibility—
Dew point50°
Thu, 2089° / 68°0.08
89 °
Red Shirt, Thursday, 20 August
Light rain. High 89°, low 68°.
Pressure29.97 inHg
Wind15.7 mph SE
Humidity36%
Visibility—
Dew point49°
Fri, 2198° / 72°0
98 °
Red Shirt, Friday, 21 August
Mostly clear. High 98°, low 72°.
Pressure29.74 inHg
Wind15.3 mph SE
Humidity27%
Visibility—
Dew point51°
Sat, 2292° / 71°0.02
92 °
Red Shirt, Saturday, 22 August
Light rain. High 92°, low 71°.
Pressure29.77 inHg
Wind20.3 mph SW
Humidity40%
Visibility—
Dew point57°
Sun, 2391° / 68°0.03
91 °
Red Shirt, Sunday, 23 August
Light rain. High 91°, low 68°.
Pressure29.85 inHg
Wind12.6 mph NE
Humidity51%
Visibility—
Dew point59°
Mon, 2488° / 68°0.03
88 °
Red Shirt, Monday, 24 August
Light rain. High 88°, low 68°.
Pressure29.94 inHg
Wind13.5 mph NE
Humidity55%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 60°0.04
82 °
Red Shirt, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low60°
Average precipitation0.04 in
Chance of precipitation22%
Record high99° (2020)
Record low46° (1964)
Wed, 2683° / 60°0.11
83 °
Red Shirt, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low60°
Average precipitation0.11 in
Chance of precipitation40%
Record high100° (1970)
Record low48° (1992)
Thu, 2783° / 60°0.07
83 °
Red Shirt, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low60°
Average precipitation0.07 in
Chance of precipitation23%
Record high101° (2010)
Record low45° (1987)
Fri, 2882° / 60°0.03
82 °
Red Shirt, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low60°
Average precipitation0.03 in
Chance of precipitation17%
Record high96° (1969)
Record low45° (1987)
Sat, 2982° / 59°0.06
82 °
Red Shirt, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low59°
Average precipitation0.06 in
Chance of precipitation30%
Record high103° (2012)
Record low49° (2018)
Sun, 3083° / 60°0.04
83 °
Red Shirt, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high83°
Average low60°
Average precipitation0.04 in
Chance of precipitation27%
Record high97° (1990)
Record low43° (1992)
Mon, 3181° / 59°0.04
81 °
Red Shirt, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low59°
Average precipitation0.04 in
Chance of precipitation17%
Record high99° (1960)
Record low44° (1965)
Tue, 0181° / 58°0.07
81 °
Red Shirt, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low58°
Average precipitation0.07 in
Chance of precipitation22%
Record high98° (2012)
Record low44° (1965)
Wed, 0282° / 59°0.07
82 °
Red Shirt, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low59°
Average precipitation0.07 in
Chance of precipitation22%
Record high98° (1960)
Record low40° (1974)
Thu, 0382° / 58°0.03
82 °
Red Shirt, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low58°
Average precipitation0.03 in
Chance of precipitation23%
Record high99° (2017)
Record low39° (1974)
Fri, 0481° / 58°0.07
81 °
Red Shirt, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low58°
Average precipitation0.07 in
Chance of precipitation28%
Record high99° (1960)
Record low41° (1968)
Sat, 0581° / 58°0.05
81 °
Red Shirt, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low58°
Average precipitation0.05 in
Chance of precipitation23%
Record high98° (2020)
Record low38° (1968)
Sun, 0680° / 57°0.03
80 °
Red Shirt, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low57°
Average precipitation0.03 in
Chance of precipitation22%
Record high97° (1978)
Record low42° (2025)
Mon, 0779° / 56°0.04
79 °
Red Shirt, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.04 in
Chance of precipitation23%
Record high96° (2022)
Record low41° (2020)
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 Red Shirt, 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 Red Shirt, 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.