Monthly outlook for Fort Pierre, SD: average high 63.5°, average low 44.3°. That is 4.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (76.5°), the coolest 28 October (28.5°).
63.5°/44.3°
Average high / low
+4.6°
Above normal
3 / 3
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
62.5°
57.5°
+2.8°
29 October – 7 November
65.1°
51°
+7.8°
8 November – 17 November
at normal
45°
—
October records over 66 years
92.1°3 October 2025All-time high
1.9°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Pierre (3 mi).
Tue, 2076° / 47°0
76 °
Fort Pierre, Tuesday, 20 October
Clear. High 76°, low 47°.
Pressure30.09 inHg
Wind8 mph SE
Humidity66%
Visibility6.2 mi
Dew point50°
Wed, 2167° / 49°0
67 °
Fort Pierre, Wednesday, 21 October
Partly cloudy. High 67°, low 49°.
Pressure30.21 inHg
Wind5.1 mph N
Humidity72%
Visibility6.2 mi
Dew point52°
Thu, 2276° / 52°0
76 °
Fort Pierre, Thursday, 22 October
Partly cloudy. High 76°, low 52°.
Pressure30.09 inHg
Wind8.4 mph SE
Humidity74%
Visibility6.2 mi
Dew point57°
Fri, 2377° / 59°0
77 °
Fort Pierre, Friday, 23 October
Overcast. High 77°, low 59°.
Pressure29.80 inHg
Wind15.2 mph SE
Humidity65%
Visibility6.2 mi
Dew point56°
Sat, 2466° / 50°0.28
66 °
Fort Pierre, Saturday, 24 October
Rain. High 66°, low 50°.
Pressure30.21 inHg
Wind17.8 mph NW
Humidity56%
Visibility—
Dew point40°
Sun, 2552° / 45°0.06
52 °
Fort Pierre, Sunday, 25 October
Light rain. High 52°, low 45°.
Pressure30.47 inHg
Wind11 mph N
Humidity62%
Visibility—
Dew point35°
Mon, 2646° / 38°0
46 °
Fort Pierre, Monday, 26 October
Overcast. High 46°, low 38°.
Pressure30.42 inHg
Wind9.8 mph E
Humidity39%
Visibility—
Dew point20°
Tue, 2743° / 31°0
43 °
Fort Pierre, Tuesday, 27 October
Clear. High 43°, low 31°.
Pressure30.74 inHg
Wind12.2 mph N
Humidity36%
Visibility—
Dew point14°
Wed, 2855° / 28°0
55 °
Fort Pierre, Wednesday, 28 October
Clear. High 55°, low 28°.
Pressure30.42 inHg
Wind10.2 mph S
Humidity27%
Visibility—
Dew point14°
Thu, 2958° / 37°0
58 °
Fort Pierre, Thursday, 29 October
Clear. High 58°, low 37°.
Pressure30.09 inHg
Wind7.8 mph E
Humidity43%
Visibility—
Dew point29°
Fri, 3062° / 41°0
62 °
Fort Pierre, Friday, 30 October
Mostly clear. High 62°, low 41°.
Pressure29.85 inHg
Wind6.8 mph E
Humidity52%
Visibility—
Dew point37°
Sat, 3169° / 46°0.01
69 °
Fort Pierre, Saturday, 31 October
Light rain. High 69°, low 46°.
Pressure29.85 inHg
Wind13.4 mph SE
Humidity47%
Visibility—
Dew point40°
Sun, 0168° / 51°0.05
68 °
Fort Pierre, Sunday, 1 November
Light rain. High 68°, low 51°.
Pressure29.97 inHg
Wind12.2 mph N
Humidity55%
Visibility—
Dew point46°
Mon, 0268° / 49°0
68 °
Fort Pierre, Monday, 2 November
Clear. High 68°, low 49°.
Pressure30.09 inHg
Wind10.9 mph NW
Humidity30%
Visibility—
Dew point30°
Tue, 0367° / 48°0
67 °
Fort Pierre, Tuesday, 3 November
Overcast. High 67°, low 48°.
Pressure30.00 inHg
Wind8.5 mph SE
Humidity35%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0451° / 33°0.01
51 °
Fort Pierre, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.01 in
Chance of precipitation10%
Record high76° (1978)
Record low6° (1991)
Thu, 0551° / 33°0.04
51 °
Fort Pierre, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.04 in
Chance of precipitation18%
Record high74° (2001)
Record low13° (2003)
Fri, 0650° / 32°0.03
50 °
Fort Pierre, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.03 in
Chance of precipitation15%
Record high75° (2020)
Record low4° (2003)
Sat, 0749° / 32°0.04
49 °
Fort Pierre, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.04 in
Chance of precipitation15%
Record high70° (2006)
Record low1° (1971)
Sun, 0849° / 32°0.07
49 °
Fort Pierre, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.07 in
Chance of precipitation13%
Record high78° (1999)
Record low10° (1991)
Mon, 0946° / 31°0.04
46 °
Fort Pierre, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high68° (2016)
Record low10° (1966)
Tue, 1045° / 28°0.05
45 °
Fort Pierre, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.05 in
Chance of precipitation23%
Record high67° (1989)
Record low1° (1986)
Wed, 1143° / 28°0.02
43 °
Fort Pierre, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.02 in
Chance of precipitation18%
Record high66° (2005)
Record low-2° (1986)
Thu, 1244° / 28°0.05
44 °
Fort Pierre, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.05 in
Chance of precipitation15%
Record high68° (1999)
Record low-1° (1986)
Fri, 1346° / 29°0.03
46 °
Fort Pierre, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high69° (1999)
Record low-10° (1986)
Sat, 1445° / 29°0.02
45 °
Fort Pierre, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.02 in
Chance of precipitation15%
Record high69° (2025)
Record low-4° (2014)
Sun, 1544° / 28°0.02
44 °
Fort Pierre, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.02 in
Chance of precipitation18%
Record high62° (1999)
Record low6° (2014)
Mon, 1645° / 28°0.03
45 °
Fort Pierre, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.03 in
Chance of precipitation7%
Record high70° (2001)
Record low2° (2014)
Tue, 1744° / 28°0.03
44 °
Fort Pierre, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.03 in
Chance of precipitation20%
Record high68° (2001)
Record low1° (2000)
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 Fort Pierre, 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 Fort Pierre, 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.