Monthly outlook for Johnson Siding, SD: average high 48.9°, average low 32.1°. That is 1.7° below the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 23 October (73.6°), the coolest 3 November (22.7°).
48.9°/32.1°
Average high / low
−1.7°
Below normal
3 / 3
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
46.8°
53.3°
-3.6°
1 November – 10 November
52.3°
48.3°
+2.2°
11 November – 20 November
at normal
44.7°
—
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 (7 mi).
Fri, 2374° / 44°0
74 °
Johnson Siding, Friday, 23 October
Partly cloudy. High 74°, low 44°.
Pressure29.65 inHg
Wind11.3 mph W
Humidity28%
Visibility6.2 mi
Dew point38°
Sat, 2447° / 30°0
47 °
Johnson Siding, Saturday, 24 October
Mostly clear. High 47°, low 30°.
Pressure30.33 inHg
Wind6.4 mph N
Humidity43%
Visibility6.2 mi
Dew point8°
Sun, 2540° / 31°0.03
40 °
Johnson Siding, Sunday, 25 October
Snow. High 40°, low 31°.
Pressure30.42 inHg
Wind7.1 mph SE
Humidity65%
Visibility6.2 mi
Dew point22°
Mon, 2631° / 29°0.52
31 °
Johnson Siding, Monday, 26 October
Snow. High 31°, low 29°.
Pressure30.39 inHg
Wind3 mph E
Humidity99%
Visibility1.1 mi
Dew point33°
Tue, 2748° / 25°0.02
48 °
Johnson Siding, Tuesday, 27 October
Snow. High 48°, low 25°.
Pressure30.00 inHg
Wind6.1 mph E
Humidity75%
Visibility—
Dew point32°
Wed, 2838° / 30°0.11
38 °
Johnson Siding, Wednesday, 28 October
Snow. High 38°, low 30°.
Pressure30.00 inHg
Wind19.9 mph NW
Humidity71%
Visibility—
Dew point28°
Thu, 2942° / 25°0
42 °
Johnson Siding, Thursday, 29 October
Overcast. High 42°, low 25°.
Pressure30.21 inHg
Wind10.2 mph SE
Humidity55%
Visibility—
Dew point21°
Fri, 3036° / 30°0.17
36 °
Johnson Siding, Friday, 30 October
Rain. High 36°, low 30°.
Pressure29.94 inHg
Wind7 mph S
Humidity90%
Visibility—
Dew point32°
Sat, 3142° / 29°0
42 °
Johnson Siding, Saturday, 31 October
Overcast. High 42°, low 29°.
Pressure29.77 inHg
Wind15 mph NW
Humidity52%
Visibility—
Dew point24°
Sun, 0144° / 27°0
44 °
Johnson Siding, Sunday, 1 November
Mostly clear. High 44°, low 27°.
Pressure29.91 inHg
Wind10.7 mph W
Humidity30%
Visibility—
Dew point13°
Mon, 0242° / 26°0
42 °
Johnson Siding, Monday, 2 November
Partly cloudy. High 42°, low 26°.
Pressure30.24 inHg
Wind14.2 mph NW
Humidity32%
Visibility—
Dew point13°
Tue, 0347° / 23°0
47 °
Johnson Siding, Tuesday, 3 November
Clear. High 47°, low 23°.
Pressure30.45 inHg
Wind7.6 mph N
Humidity30%
Visibility—
Dew point12°
Wed, 0451° / 30°0
51 °
Johnson Siding, Wednesday, 4 November
Overcast. High 51°, low 30°.
Pressure30.27 inHg
Wind8.4 mph W
Humidity20%
Visibility—
Dew point8°
Thu, 0563° / 41°0
63 °
Johnson Siding, Thursday, 5 November
Clear. High 63°, low 41°.
Pressure30.06 inHg
Wind7 mph W
Humidity34%
Visibility—
Dew point32°
Fri, 0666° / 46°0
66 °
Johnson Siding, Friday, 6 November
Clear. High 66°, low 46°.
Pressure29.88 inHg
Wind6.9 mph W
Humidity25%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0749° / 30°0.04
49 °
Johnson Siding, 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 °
Johnson Siding, 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 °
Johnson Siding, 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 °
Johnson Siding, 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 °
Johnson Siding, 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 °
Johnson Siding, 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 °
Johnson Siding, 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 °
Johnson Siding, 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 °
Johnson Siding, 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)
Mon, 1647° / 28°0.02
47 °
Johnson Siding, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.02 in
Chance of precipitation7%
Record high67° (2017)
Record low1° (2000)
Tue, 1744° / 28°0.02
44 °
Johnson Siding, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.02 in
Chance of precipitation17%
Record high65° (1999)
Record low0° (2000)
Wed, 1844° / 27°0.04
44 °
Johnson Siding, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (2008)
Record low7° (2014)
Thu, 1942° / 27°0.04
42 °
Johnson Siding, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.04 in
Chance of precipitation20%
Record high66° (1989)
Record low1° (1985)
Fri, 2043° / 25°0.02
43 °
Johnson Siding, Friday, 20 November
Climate normal for this date — 60-year average.
Average high43°
Average low25°
Average precipitation0.02 in
Chance of precipitation15%
Record high64° (1990)
Record low-10° (1985)
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 Johnson Siding, 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 Johnson Siding, 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.