Monthly outlook for Herreid, SD: average high 59.3°, average low 40°. That is 4.6° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (74.2°), the coolest 27 October (27.9°).
59.3°/40°
Average high / low
+4.6°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
58.4°
53°
+3°
31 October – 9 November
60.9°
46.7°
+7.9°
10 November – 19 November
at normal
40.4°
—
October records over 66 years
89.2°4 October 1963All-time high
3.7°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Mound City (8 mi).
Thu, 2270° / 44°0
70 °
Herreid, Thursday, 22 October
Overcast. High 70°, low 44°.
Pressure30.06 inHg
Wind12 mph SE
Humidity71%
Visibility6.2 mi
Dew point55°
Fri, 2374° / 58°0
74 °
Herreid, Friday, 23 October
Overcast. High 74°, low 58°.
Pressure29.80 inHg
Wind17.2 mph SE
Humidity64%
Visibility6.2 mi
Dew point56°
Sat, 2465° / 43°0.01
65 °
Herreid, Saturday, 24 October
Light rain. High 65°, low 43°.
Pressure30.21 inHg
Wind17.2 mph NW
Humidity59%
Visibility6.2 mi
Dew point36°
Sun, 2551° / 35°0
51 °
Herreid, Sunday, 25 October
Overcast. High 51°, low 35°.
Pressure30.47 inHg
Wind6.5 mph E
Humidity48%
Visibility—
Dew point29°
Mon, 2646° / 33°0
46 °
Herreid, Monday, 26 October
Mostly clear. High 46°, low 33°.
Pressure30.59 inHg
Wind11.5 mph N
Humidity52%
Visibility—
Dew point27°
Tue, 2749° / 28°0
49 °
Herreid, Tuesday, 27 October
Clear. High 49°, low 28°.
Pressure30.45 inHg
Wind14 mph S
Humidity24%
Visibility—
Dew point9°
Wed, 2850° / 34°0
50 °
Herreid, Wednesday, 28 October
Overcast. High 50°, low 34°.
Pressure30.27 inHg
Wind17.3 mph NW
Humidity32%
Visibility—
Dew point17°
Thu, 2951° / 33°0
51 °
Herreid, Thursday, 29 October
Clear. High 51°, low 33°.
Pressure30.24 inHg
Wind6 mph SE
Humidity31%
Visibility—
Dew point17°
Fri, 3061° / 34°0
61 °
Herreid, Friday, 30 October
Clear. High 61°, low 34°.
Pressure29.71 inHg
Wind19.1 mph S
Humidity44%
Visibility—
Dew point33°
Sat, 3155° / 40°0
55 °
Herreid, Saturday, 31 October
Overcast. High 55°, low 40°.
Pressure29.71 inHg
Wind13.3 mph NW
Humidity26%
Visibility—
Dew point17°
Sun, 0162° / 39°0
62 °
Herreid, Sunday, 1 November
Clear. High 62°, low 39°.
Pressure29.77 inHg
Wind17.3 mph W
Humidity20%
Visibility—
Dew point15°
Mon, 0255° / 40°0
55 °
Herreid, Monday, 2 November
Overcast. High 55°, low 40°.
Pressure30.30 inHg
Wind7.4 mph NW
Humidity26%
Visibility—
Dew point16°
Tue, 0362° / 41°0
62 °
Herreid, Tuesday, 3 November
Overcast. High 62°, low 41°.
Pressure30.03 inHg
Wind12.9 mph SE
Humidity43%
Visibility—
Dew point29°
Wed, 0466° / 47°0
66 °
Herreid, Wednesday, 4 November
Clear. High 66°, low 47°.
Pressure30.06 inHg
Wind7.8 mph SE
Humidity49%
Visibility—
Dew point41°
Thu, 0565° / 46°0
65 °
Herreid, Thursday, 5 November
Overcast. High 65°, low 46°.
Pressure30.15 inHg
Wind8.5 mph W
Humidity47%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0647° / 30°0.02
47 °
Herreid, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.02 in
Chance of precipitation10%
Record high70° (2016)
Record low3° (1991)
Sat, 0746° / 30°0.05
46 °
Herreid, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.05 in
Chance of precipitation13%
Record high70° (2006)
Record low0° (1991)
Sun, 0845° / 30°0.04
45 °
Herreid, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.04 in
Chance of precipitation20%
Record high70° (1978)
Record low4° (2003)
Mon, 0942° / 28°0.04
42 °
Herreid, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.04 in
Chance of precipitation15%
Record high64° (2016)
Record low9° (1986)
Tue, 1041° / 26°0.06
41 °
Herreid, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.06 in
Chance of precipitation23%
Record high65° (1989)
Record low0° (1986)
Wed, 1139° / 25°0.01
39 °
Herreid, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.01 in
Chance of precipitation13%
Record high64° (2005)
Record low-1° (1986)
Thu, 1240° / 25°0.03
40 °
Herreid, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.03 in
Chance of precipitation15%
Record high63° (1999)
Record low-3° (1986)
Fri, 1343° / 27°0.02
43 °
Herreid, Friday, 13 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.02 in
Chance of precipitation22%
Record high65° (2016)
Record low-5° (1986)
Sat, 1441° / 27°0.02
41 °
Herreid, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.02 in
Chance of precipitation13%
Record high63° (2025)
Record low-3° (2014)
Sun, 1541° / 26°0.01
41 °
Herreid, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.01 in
Chance of precipitation10%
Record high60° (1975)
Record low3° (2014)
Mon, 1642° / 26°0.02
42 °
Herreid, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.02 in
Chance of precipitation8%
Record high63° (2001)
Record low0° (2014)
Tue, 1740° / 26°0.02
40 °
Herreid, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.02 in
Chance of precipitation12%
Record high63° (2001)
Record low4° (2018)
Wed, 1840° / 24°0.04
40 °
Herreid, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.04 in
Chance of precipitation22%
Record high53° (2012)
Record low2° (2022)
Thu, 1938° / 25°0.04
38 °
Herreid, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.04 in
Chance of precipitation22%
Record high60° (1989)
Record low7° (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 Herreid, 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 Herreid, 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.