Monthly outlook for Herreid, SD: average high 54.5°, average low 40.1°. That is 3.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 1 November (68°), the coolest 26 October (26.7°).
54.5°/40.1°
Average high / low
+3.3°
Above normal
2 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
55.1°
50.4°
+2.6°
4 November – 13 November
53.5°
43.7°
+5.5°
14 November – 23 November
at normal
38.7°
—
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).
Mon, 2640° / 27°0.38
40 °
Herreid, Monday, 26 October
Snow. High 40°, low 27°.
Pressure30.50 inHg
Wind9 mph E
Humidity73%
Visibility6.2 mi
Dew point25°
Tue, 2750° / 30°0.02
50 °
Herreid, Tuesday, 27 October
Snow. High 50°, low 30°.
Pressure30.03 inHg
Wind9.9 mph SE
Humidity90%
Visibility6.2 mi
Dew point37°
Wed, 2859° / 36°0
59 °
Herreid, Wednesday, 28 October
Clear. High 59°, low 36°.
Pressure30.00 inHg
Wind1.8 mph S
Humidity71%
Visibility6.2 mi
Dew point41°
Thu, 2960° / 33°0
60 °
Herreid, Thursday, 29 October
Clear. High 60°, low 33°.
Pressure30.15 inHg
Wind10.2 mph SE
Humidity49%
Visibility—
Dew point35°
Fri, 3054° / 40°0
54 °
Herreid, Friday, 30 October
Overcast. High 54°, low 40°.
Pressure30.24 inHg
Wind12.1 mph E
Humidity63%
Visibility—
Dew point37°
Sat, 3156° / 46°0
56 °
Herreid, Saturday, 31 October
Overcast. High 56°, low 46°.
Pressure29.94 inHg
Wind9.7 mph E
Humidity90%
Visibility—
Dew point51°
Sun, 0168° / 53°0
68 °
Herreid, Sunday, 1 November
Light rain. High 68°, low 53°.
Pressure29.97 inHg
Wind13.5 mph SE
Humidity66%
Visibility—
Dew point51°
Mon, 0263° / 55°0.19
63 °
Herreid, Monday, 2 November
Rain. High 63°, low 55°.
Pressure29.35 inHg
Wind28 mph W
Humidity77%
Visibility—
Dew point55°
Tue, 0354° / 45°0
54 °
Herreid, Tuesday, 3 November
Clear. High 54°, low 45°.
Pressure29.88 inHg
Wind27.1 mph NW
Humidity40%
Visibility—
Dew point28°
Wed, 0452° / 39°0
52 °
Herreid, Wednesday, 4 November
Clear. High 52°, low 39°.
Pressure29.97 inHg
Wind17.8 mph NW
Humidity50%
Visibility—
Dew point29°
Thu, 0556° / 40°0
56 °
Herreid, Thursday, 5 November
Overcast. High 56°, low 40°.
Pressure29.91 inHg
Wind7.4 mph S
Humidity47%
Visibility—
Dew point30°
Fri, 0654° / 42°0
54 °
Herreid, Friday, 6 November
Overcast. High 54°, low 42°.
Pressure29.65 inHg
Wind20.8 mph SE
Humidity45%
Visibility—
Dew point31°
Sat, 0751° / 46°0.03
51 °
Herreid, Saturday, 7 November
Light rain. High 51°, low 46°.
Pressure29.44 inHg
Wind18.2 mph SE
Humidity82%
Visibility—
Dew point46°
Sun, 0849° / 40°0.01
49 °
Herreid, Sunday, 8 November
Light rain. High 49°, low 40°.
Pressure29.88 inHg
Wind16.5 mph NW
Humidity69%
Visibility—
Dew point37°
Mon, 0958° / 37°0
58 °
Herreid, Monday, 9 November
Partly cloudy. High 58°, low 37°.
Pressure30.09 inHg
Wind9.1 mph SW
Humidity43%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 2037° / 24°0.03
37 °
Herreid, Friday, 20 November
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.03 in
Chance of precipitation12%
Record high57° (1990)
Record low-3° (1978)
Sat, 2137° / 23°0.01
37 °
Herreid, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.01 in
Chance of precipitation13%
Record high60° (1960)
Record low-3° (1978)
Sun, 2237° / 22°0.02
37 °
Herreid, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.02 in
Chance of precipitation13%
Record high55° (2005)
Record low1° (1970)
Mon, 2335° / 22°0.02
35 °
Herreid, Monday, 23 November
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.02 in
Chance of precipitation17%
Record high55° (2017)
Record low-6° (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.