Monthly outlook for Piedmont, SD: average high 61°, average low 42.1°. That is 3.5° above the climate normal for October. Precipitation is expected on 4 days (about 3.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 17 October (78.1°), the coolest 1 November (27.1°).
61°/42.1°
Average high / low
+3.5°
Above normal
4 / 3
Wet days / normal
3.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
66.2°
56.7°
+5.3°
27 October – 5 November
52.2°
50.5°
+1°
6 November – 15 November
at normal
46.1°
—
October records over 66 years
89.2°3 October 2025All-time high
-6.2°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Blackhawk (5 mi).
Sun, 1869° / 46°0
69 °
Piedmont, Sunday, 18 October
Clear. High 69°, low 46°.
Pressure30.09 inHg
Wind8.3 mph N
Humidity32%
Visibility6.2 mi
Dew point33°
Mon, 1959° / 40°0
59 °
Piedmont, Monday, 19 October
Clear. High 59°, low 40°.
Pressure30.15 inHg
Wind9.6 mph SE
Humidity48%
Visibility6.2 mi
Dew point38°
Tue, 2069° / 47°0
69 °
Piedmont, Tuesday, 20 October
Mostly clear. High 69°, low 47°.
Pressure29.97 inHg
Wind3.4 mph E
Humidity44%
Visibility6.2 mi
Dew point44°
Wed, 2163° / 49°0
63 °
Piedmont, Wednesday, 21 October
Clear. High 63°, low 49°.
Pressure30.18 inHg
Wind5.6 mph E
Humidity62%
Visibility6.2 mi
Dew point47°
Thu, 2277° / 53°0
77 °
Piedmont, Thursday, 22 October
Overcast. High 77°, low 53°.
Pressure29.88 inHg
Wind12.4 mph S
Humidity37%
Visibility—
Dew point45°
Fri, 2370° / 57°0
70 °
Piedmont, Friday, 23 October
Overcast. High 70°, low 57°.
Pressure29.74 inHg
Wind16.5 mph N
Humidity42%
Visibility—
Dew point45°
Sat, 2454° / 42°0.95
54 °
Piedmont, Saturday, 24 October
Heavy rain. High 54°, low 42°.
Pressure30.27 inHg
Wind13.1 mph NW
Humidity94%
Visibility—
Dew point41°
Sun, 2560° / 41°0
60 °
Piedmont, Sunday, 25 October
Clear. High 60°, low 41°.
Pressure30.09 inHg
Wind13.2 mph N
Humidity55%
Visibility—
Dew point39°
Mon, 2663° / 42°0
63 °
Piedmont, Monday, 26 October
Clear. High 63°, low 42°.
Pressure30.12 inHg
Wind15.4 mph SE
Humidity45%
Visibility—
Dew point37°
Tue, 2767° / 48°0
67 °
Piedmont, Tuesday, 27 October
Clear. High 67°, low 48°.
Pressure29.85 inHg
Wind20.2 mph S
Humidity41%
Visibility—
Dew point39°
Wed, 2859° / 39°0.05
59 °
Piedmont, Wednesday, 28 October
Light rain. High 59°, low 39°.
Pressure29.91 inHg
Wind19.3 mph SW
Humidity28%
Visibility—
Dew point18°
Thu, 2964° / 41°0
64 °
Piedmont, Thursday, 29 October
Overcast. High 64°, low 41°.
Pressure29.59 inHg
Wind16.6 mph SW
Humidity18%
Visibility—
Dew point19°
Fri, 3048° / 31°1.78
48 °
Piedmont, Friday, 30 October
Snow. High 48°, low 31°.
Pressure29.47 inHg
Wind31.3 mph NW
Humidity99%
Visibility—
Dew point34°
Sat, 3136° / 28°0.18
36 °
Piedmont, Saturday, 31 October
Snow. High 36°, low 28°.
Pressure29.85 inHg
Wind27.5 mph NW
Humidity93%
Visibility—
Dew point33°
Sun, 0139° / 27°0
39 °
Piedmont, Sunday, 1 November
Light rain. High 39°, low 27°.
Pressure29.91 inHg
Wind7.2 mph W
Humidity99%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0249° / 31°0.04
49 °
Piedmont, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high73° (2008)
Record low-3° (1991)
Tue, 0349° / 32°0.04
49 °
Piedmont, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.04 in
Chance of precipitation20%
Record high74° (2020)
Record low2° (1991)
Wed, 0451° / 31°0.01
51 °
Piedmont, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low31°
Average precipitation0.01 in
Chance of precipitation8%
Record high73° (1978)
Record low8° (1995)
Thu, 0550° / 31°0.03
50 °
Piedmont, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high77° (2020)
Record low2° (2003)
Fri, 0649° / 30°0.05
49 °
Piedmont, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.05 in
Chance of precipitation13%
Record high74° (2020)
Record low1° (2003)
Sat, 0749° / 30°0.04
49 °
Piedmont, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.04 in
Chance of precipitation13%
Record high76° (2020)
Record low5° (1991)
Sun, 0847° / 29°0.07
47 °
Piedmont, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.07 in
Chance of precipitation18%
Record high76° (1999)
Record low3° (2003)
Mon, 0944° / 28°0.07
44 °
Piedmont, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.07 in
Chance of precipitation23%
Record high69° (2001)
Record low0° (1966)
Tue, 1045° / 26°0.04
45 °
Piedmont, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.04 in
Chance of precipitation18%
Record high67° (2005)
Record low-5° (1986)
Wed, 1143° / 26°0.02
43 °
Piedmont, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.02 in
Chance of precipitation17%
Record high68° (2005)
Record low-4° (1986)
Thu, 1246° / 27°0.02
46 °
Piedmont, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.02 in
Chance of precipitation18%
Record high72° (1999)
Record low-11° (1986)
Fri, 1346° / 28°0.04
46 °
Piedmont, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation20%
Record high71° (1999)
Record low-14° (1986)
Sat, 1446° / 29°0.02
46 °
Piedmont, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.02 in
Chance of precipitation20%
Record high74° (2025)
Record low-4° (2014)
Sun, 1546° / 28°0.02
46 °
Piedmont, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.02 in
Chance of precipitation12%
Record high69° (2021)
Record low2° (2014)
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 Piedmont, 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 Piedmont, 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.