Monthly outlook for Big Bend, SD: average high 59.2°, average low 36.8°. That is 3.1° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 22 October (74.5°), the coolest 28 October (14.4°).
59.2°/36.8°
Average high / low
+3.1°
Above normal
4 / 3
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
59°
55.9°
+1.7°
29 October – 7 November
59.5°
49.7°
+5.4°
8 November – 17 November
at normal
45.4°
—
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).
Tue, 2070° / 35°0
70 °
Big Bend, Tuesday, 20 October
Clear. High 70°, low 35°.
Pressure29.97 inHg
Wind5.7 mph E
Humidity33%
Visibility6.2 mi
Dew point38°
Wed, 2162° / 41°0
62 °
Big Bend, Wednesday, 21 October
Mostly clear. High 62°, low 41°.
Pressure30.18 inHg
Wind5.1 mph SE
Humidity53%
Visibility6.2 mi
Dew point44°
Thu, 2275° / 49°0
75 °
Big Bend, Thursday, 22 October
Overcast. High 75°, low 49°.
Pressure29.91 inHg
Wind5.4 mph S
Humidity41%
Visibility6.2 mi
Dew point48°
Fri, 2372° / 54°0.04
72 °
Big Bend, Friday, 23 October
Light rain. High 72°, low 54°.
Pressure29.62 inHg
Wind10.4 mph SW
Humidity52%
Visibility—
Dew point50°
Sat, 2456° / 39°0
56 °
Big Bend, Saturday, 24 October
Clear. High 56°, low 39°.
Pressure30.06 inHg
Wind15.2 mph W
Humidity46%
Visibility—
Dew point33°
Sun, 2568° / 40°0
68 °
Big Bend, Sunday, 25 October
Clear. High 68°, low 40°.
Pressure30.06 inHg
Wind12.7 mph W
Humidity12%
Visibility—
Dew point8°
Mon, 2655° / 32°0
55 °
Big Bend, Monday, 26 October
Overcast. High 55°, low 32°.
Pressure30.24 inHg
Wind13.4 mph NE
Humidity49%
Visibility—
Dew point25°
Tue, 2730° / 19°0.16
30 °
Big Bend, Tuesday, 27 October
Snow. High 30°, low 19°.
Pressure30.56 inHg
Wind10.1 mph N
Humidity88%
Visibility—
Dew point25°
Wed, 2844° / 14°0
44 °
Big Bend, Wednesday, 28 October
Clear. High 44°, low 14°.
Pressure30.33 inHg
Wind8.9 mph S
Humidity48%
Visibility—
Dew point20°
Thu, 2960° / 27°0
60 °
Big Bend, Thursday, 29 October
Clear. High 60°, low 27°.
Pressure29.88 inHg
Wind7.1 mph W
Humidity25%
Visibility—
Dew point19°
Fri, 3068° / 45°0
68 °
Big Bend, Friday, 30 October
Overcast. High 68°, low 45°.
Pressure29.71 inHg
Wind9.2 mph W
Humidity22%
Visibility—
Dew point25°
Sat, 3165° / 46°0
65 °
Big Bend, Saturday, 31 October
Partly cloudy. High 65°, low 46°.
Pressure29.80 inHg
Wind18.2 mph W
Humidity27%
Visibility—
Dew point28°
Sun, 0161° / 45°0.09
61 °
Big Bend, Sunday, 1 November
Light rain. High 61°, low 45°.
Pressure29.80 inHg
Wind11.9 mph W
Humidity31%
Visibility—
Dew point29°
Mon, 0248° / 34°0.51
48 °
Big Bend, Monday, 2 November
Rain. High 48°, low 34°.
Pressure30.03 inHg
Wind17.5 mph NW
Humidity64%
Visibility—
Dew point33°
Tue, 0354° / 31°0
54 °
Big Bend, Tuesday, 3 November
Partly cloudy. High 54°, low 31°.
Pressure30.24 inHg
Wind11.3 mph S
Humidity52%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0451° / 31°0.01
51 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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 °
Big Bend, 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)
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 Big Bend, 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 Big Bend, 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.