Monthly outlook for Piedmont, SD: average high 56.1°, average low 40.3°. That is 0.1° below the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 20 October (76.3°), the coolest 16 October (30.2°).
56.1°/40.3°
Average high / low
−0.1°
Below normal
4 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
57.6°
57.3°
+0.2°
23 October – 1 November
53.7°
52.7°
+0.5°
2 November – 11 November
at normal
47.6°
—
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).
Wed, 1447° / 41°0.22
47 °
Piedmont, Wednesday, 14 October
Rain. High 47°, low 41°.
Pressure30.21 inHg
Wind5.4 mph SE
Humidity89%
Visibility6.2 mi
Dew point44°
Thu, 1553° / 38°0.07
53 °
Piedmont, Thursday, 15 October
Light rain. High 53°, low 38°.
Pressure30.42 inHg
Wind21.1 mph NW
Humidity42%
Visibility6.2 mi
Dew point25°
Fri, 1657° / 30°0
57 °
Piedmont, Friday, 16 October
Clear. High 57°, low 30°.
Pressure30.59 inHg
Wind8.5 mph SE
Humidity41%
Visibility6.2 mi
Dew point19°
Sat, 1770° / 46°0
70 °
Piedmont, Saturday, 17 October
Clear. High 70°, low 46°.
Pressure29.97 inHg
Wind7.4 mph W
Humidity25%
Visibility—
Dew point29°
Sun, 1862° / 46°0
62 °
Piedmont, Sunday, 18 October
Partly cloudy. High 62°, low 46°.
Pressure30.03 inHg
Wind7.9 mph NW
Humidity38%
Visibility—
Dew point34°
Mon, 1973° / 42°0
73 °
Piedmont, Monday, 19 October
Clear. High 73°, low 42°.
Pressure29.85 inHg
Wind17.3 mph S
Humidity24%
Visibility—
Dew point27°
Tue, 2076° / 54°0
76 °
Piedmont, Tuesday, 20 October
Overcast. High 76°, low 54°.
Pressure29.65 inHg
Wind13.1 mph S
Humidity24%
Visibility—
Dew point34°
Wed, 2152° / 40°0
52 °
Piedmont, Wednesday, 21 October
Overcast. High 52°, low 40°.
Pressure29.91 inHg
Wind16.6 mph N
Humidity52%
Visibility—
Dew point33°
Thu, 2242° / 38°0.1
42 °
Piedmont, Thursday, 22 October
Snow. High 42°, low 38°.
Pressure29.88 inHg
Wind9.1 mph N
Humidity90%
Visibility—
Dew point39°
Fri, 2340° / 38°0.01
40 °
Piedmont, Friday, 23 October
Light snow. High 40°, low 38°.
Pressure30.09 inHg
Wind20.2 mph NW
Humidity91%
Visibility—
Dew point37°
Sat, 2454° / 37°0
54 °
Piedmont, Saturday, 24 October
Partly cloudy. High 54°, low 37°.
Pressure30.33 inHg
Wind16.9 mph NW
Humidity24%
Visibility—
Dew point14°
Sun, 2554° / 40°0
54 °
Piedmont, Sunday, 25 October
Clear. High 54°, low 40°.
Pressure30.33 inHg
Wind18.9 mph NW
Humidity41%
Visibility—
Dew point29°
Mon, 2657° / 34°0
57 °
Piedmont, Monday, 26 October
Clear. High 57°, low 34°.
Pressure30.15 inHg
Wind17 mph S
Humidity35%
Visibility—
Dew point24°
Tue, 2768° / 42°0
68 °
Piedmont, Tuesday, 27 October
Clear. High 68°, low 42°.
Pressure29.62 inHg
Wind12.7 mph N
Humidity26%
Visibility—
Dew point27°
Wed, 2849° / 37°0
49 °
Piedmont, Wednesday, 28 October
Overcast. High 49°, low 37°.
Pressure30.09 inHg
Wind21.2 mph NW
Humidity68%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2951° / 33°0.09
51 °
Piedmont, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.09 in
Chance of precipitation33%
Record high74° (1968)
Record low2° (1991)
Fri, 3050° / 33°0.04
50 °
Piedmont, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high75° (1968)
Record low-3° (1991)
Sat, 3150° / 32°0.04
50 °
Piedmont, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.04 in
Chance of precipitation15%
Record high73° (1990)
Record low1° (2002)
Sun, 0149° / 32°0.06
49 °
Piedmont, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.06 in
Chance of precipitation17%
Record high72° (2022)
Record low-2° (2002)
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)
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.