Monthly outlook for Deadwood, SD: average high 55.9°, average low 38.7°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 3.5 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 17 October (72.3°), the coolest 31 October (20.7°).
55.9°/38.7°
Average high / low
+0.5°
Above normal
4 / 4
Wet days / normal
3.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
62.2°
57.1°
+2.9°
27 October – 5 November
45.4°
50.8°
-3°
6 November – 15 November
at normal
46.6°
—
October records over 66 years
89.8°4 October 1963All-time high
-4.2°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Whitewood (7 mi).
Sun, 1860° / 45°0
60 °
Deadwood, Sunday, 18 October
Clear. High 60°, low 45°.
Pressure30.12 inHg
Wind3.8 mph NE
Humidity37%
Visibility6.2 mi
Dew point34°
Mon, 1960° / 44°0
60 °
Deadwood, Monday, 19 October
Clear. High 60°, low 44°.
Pressure30.06 inHg
Wind9.6 mph E
Humidity40%
Visibility6.2 mi
Dew point36°
Tue, 2065° / 47°0
65 °
Deadwood, Tuesday, 20 October
Clear. High 65°, low 47°.
Pressure29.94 inHg
Wind3.4 mph NE
Humidity45%
Visibility6.2 mi
Dew point44°
Wed, 2161° / 47°0
61 °
Deadwood, Wednesday, 21 October
Clear. High 61°, low 47°.
Pressure30.15 inHg
Wind7.9 mph S
Humidity61%
Visibility—
Dew point44°
Thu, 2272° / 54°0
72 °
Deadwood, Thursday, 22 October
Overcast. High 72°, low 54°.
Pressure29.88 inHg
Wind12.1 mph S
Humidity44%
Visibility—
Dew point46°
Fri, 2370° / 53°0.01
70 °
Deadwood, Friday, 23 October
Light rain. High 70°, low 53°.
Pressure29.53 inHg
Wind20.5 mph SW
Humidity36%
Visibility—
Dew point40°
Sat, 2450° / 32°0.35
50 °
Deadwood, Saturday, 24 October
Snow. High 50°, low 32°.
Pressure30.00 inHg
Wind22.7 mph NW
Humidity97%
Visibility—
Dew point33°
Sun, 2558° / 29°0
58 °
Deadwood, Sunday, 25 October
Overcast. High 58°, low 29°.
Pressure29.88 inHg
Wind9.4 mph S
Humidity60%
Visibility—
Dew point38°
Mon, 2654° / 45°0
54 °
Deadwood, Monday, 26 October
Overcast. High 54°, low 45°.
Pressure29.65 inHg
Wind18.3 mph W
Humidity39%
Visibility—
Dew point28°
Tue, 2762° / 42°0
62 °
Deadwood, Tuesday, 27 October
Overcast. High 62°, low 42°.
Pressure29.53 inHg
Wind22.9 mph SW
Humidity29%
Visibility—
Dew point24°
Wed, 2845° / 35°0.12
45 °
Deadwood, Wednesday, 28 October
Light rain. High 45°, low 35°.
Pressure29.94 inHg
Wind18.5 mph NW
Humidity38%
Visibility—
Dew point18°
Thu, 2957° / 39°0
57 °
Deadwood, Thursday, 29 October
Mostly clear. High 57°, low 39°.
Pressure29.59 inHg
Wind24.7 mph SW
Humidity23%
Visibility—
Dew point18°
Fri, 3042° / 25°2.73
42 °
Deadwood, Friday, 30 October
Snow. High 42°, low 25°.
Pressure29.50 inHg
Wind26 mph NW
Humidity99%
Visibility—
Dew point29°
Sat, 3133° / 21°0.24
33 °
Deadwood, Saturday, 31 October
Snow. High 33°, low 21°.
Pressure29.85 inHg
Wind24.2 mph NW
Humidity91%
Visibility—
Dew point28°
Sun, 0134° / 23°0
34 °
Deadwood, Sunday, 1 November
Light rain. High 34°, low 23°.
Pressure29.94 inHg
Wind9.2 mph SW
Humidity100%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0249° / 32°0.04
49 °
Deadwood, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.04 in
Chance of precipitation25%
Record high75° (2008)
Record low-5° (1991)
Tue, 0349° / 32°0.04
49 °
Deadwood, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.04 in
Chance of precipitation22%
Record high74° (2020)
Record low0° (1991)
Wed, 0451° / 31°0.02
51 °
Deadwood, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high75° (1978)
Record low9° (2002)
Thu, 0550° / 31°0.04
50 °
Deadwood, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high74° (2020)
Record low4° (2003)
Fri, 0649° / 30°0.06
49 °
Deadwood, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.06 in
Chance of precipitation18%
Record high73° (2020)
Record low2° (2003)
Sat, 0750° / 31°0.04
50 °
Deadwood, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.04 in
Chance of precipitation17%
Record high75° (1999)
Record low3° (1991)
Sun, 0848° / 30°0.06
48 °
Deadwood, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.06 in
Chance of precipitation20%
Record high77° (1999)
Record low6° (2000)
Mon, 0944° / 28°0.07
44 °
Deadwood, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.07 in
Chance of precipitation28%
Record high70° (2001)
Record low-4° (1966)
Tue, 1046° / 27°0.05
46 °
Deadwood, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (2007)
Record low-4° (1986)
Wed, 1144° / 26°0.02
44 °
Deadwood, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.02 in
Chance of precipitation27%
Record high68° (2005)
Record low-3° (1986)
Thu, 1246° / 27°0.02
46 °
Deadwood, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.02 in
Chance of precipitation17%
Record high75° (1999)
Record low-9° (1986)
Fri, 1347° / 29°0.05
47 °
Deadwood, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.05 in
Chance of precipitation27%
Record high70° (1999)
Record low-14° (1986)
Sat, 1447° / 30°0.04
47 °
Deadwood, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.04 in
Chance of precipitation25%
Record high74° (2025)
Record low-3° (2014)
Sun, 1546° / 28°0.03
46 °
Deadwood, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.03 in
Chance of precipitation15%
Record high67° (2021)
Record low2° (1978)
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 Deadwood, 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 Deadwood, 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.