Monthly outlook for Delmont, SD: average high 54.4°, average low 40.9°. That is 0.7° above the climate normal for October. Precipitation is expected on 6 days (about 3.2 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 24 October (65.8°), the coolest 6 November (24°).
54.4°/40.9°
Average high / low
+0.7°
Above normal
6 / 3
Wet days / normal
3.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
59.5°
54.4°
+2.8°
3 November – 12 November
45.9°
48.8°
-1.6°
13 November – 22 November
at normal
44.7°
—
October records over 66 years
90.9°3 October 2025All-time high
11.1°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Tripp (10 mi).
Sun, 2552° / 45°0.26
52 °
Delmont, Sunday, 25 October
Rain. High 52°, low 45°.
Pressure30.42 inHg
Wind8.9 mph NE
Humidity85%
Visibility5.2 mi
Dew point44°
Mon, 2654° / 44°1.23
54 °
Delmont, Monday, 26 October
Heavy rain. High 54°, low 44°.
Pressure30.27 inHg
Wind13.3 mph E
Humidity95%
Visibility2.4 mi
Dew point44°
Tue, 2759° / 42°0.02
59 °
Delmont, Tuesday, 27 October
Light rain. High 59°, low 42°.
Pressure30.06 inHg
Wind7.2 mph S
Humidity66%
Visibility6.2 mi
Dew point39°
Wed, 2864° / 44°0
64 °
Delmont, Wednesday, 28 October
Overcast. High 64°, low 44°.
Pressure30.00 inHg
Wind5.2 mph W
Humidity51%
Visibility—
Dew point40°
Thu, 2964° / 40°0
64 °
Delmont, Thursday, 29 October
Clear. High 64°, low 40°.
Pressure30.12 inHg
Wind11.2 mph SE
Humidity46%
Visibility—
Dew point37°
Fri, 3057° / 47°0.41
57 °
Delmont, Friday, 30 October
Rain. High 57°, low 47°.
Pressure30.12 inHg
Wind12.4 mph SE
Humidity58%
Visibility—
Dew point41°
Sat, 3165° / 53°0.07
65 °
Delmont, Saturday, 31 October
Light rain. High 65°, low 53°.
Pressure29.91 inHg
Wind7.6 mph SE
Humidity72%
Visibility—
Dew point52°
Sun, 0159° / 51°0.03
59 °
Delmont, Sunday, 1 November
Light rain. High 59°, low 51°.
Pressure30.09 inHg
Wind9.5 mph W
Humidity83%
Visibility—
Dew point51°
Mon, 0255° / 40°0.31
55 °
Delmont, Monday, 2 November
Rain. High 55°, low 40°.
Pressure30.21 inHg
Wind24.7 mph NW
Humidity76%
Visibility—
Dew point38°
Tue, 0348° / 34°0.87
48 °
Delmont, Tuesday, 3 November
Snow. High 48°, low 34°.
Pressure30.24 inHg
Wind33.1 mph N
Humidity66%
Visibility—
Dew point34°
Wed, 0452° / 36°0
52 °
Delmont, Wednesday, 4 November
Overcast. High 52°, low 36°.
Pressure30.21 inHg
Wind7.8 mph N
Humidity45%
Visibility—
Dew point27°
Thu, 0538° / 28°0
38 °
Delmont, Thursday, 5 November
Overcast. High 38°, low 28°.
Pressure30.39 inHg
Wind13.3 mph N
Humidity42%
Visibility—
Dew point15°
Fri, 0635° / 24°0
35 °
Delmont, Friday, 6 November
Clear. High 35°, low 24°.
Pressure30.59 inHg
Wind13.2 mph S
Humidity35%
Visibility—
Dew point7°
Sat, 0749° / 31°0
49 °
Delmont, Saturday, 7 November
Overcast. High 49°, low 31°.
Pressure29.85 inHg
Wind22.8 mph S
Humidity61%
Visibility—
Dew point30°
Sun, 0854° / 43°0
54 °
Delmont, Sunday, 8 November
Overcast. High 54°, low 43°.
Pressure29.94 inHg
Wind21.5 mph NW
Humidity50%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0947° / 33°0.12
47 °
Delmont, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.12 in
Chance of precipitation25%
Record high71° (1999)
Record low12° (2018)
Tue, 1046° / 30°0.04
46 °
Delmont, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.04 in
Chance of precipitation18%
Record high66° (2016)
Record low3° (1986)
Wed, 1145° / 28°0.05
45 °
Delmont, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.05 in
Chance of precipitation17%
Record high72° (2005)
Record low-6° (1986)
Thu, 1245° / 29°0.05
45 °
Delmont, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.05 in
Chance of precipitation25%
Record high68° (1999)
Record low4° (1986)
Fri, 1347° / 30°0.03
47 °
Delmont, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.03 in
Chance of precipitation18%
Record high72° (1999)
Record low-12° (1986)
Sat, 1446° / 31°0.02
46 °
Delmont, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.02 in
Chance of precipitation15%
Record high77° (2025)
Record low7° (2000)
Sun, 1546° / 30°0.06
46 °
Delmont, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.06 in
Chance of precipitation22%
Record high68° (2001)
Record low4° (2000)
Mon, 1647° / 29°0.05
47 °
Delmont, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.05 in
Chance of precipitation10%
Record high72° (2021)
Record low1° (2014)
Tue, 1745° / 29°0.06
45 °
Delmont, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.06 in
Chance of precipitation18%
Record high69° (2001)
Record low2° (2000)
Wed, 1845° / 29°0.06
45 °
Delmont, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.06 in
Chance of precipitation23%
Record high64° (1999)
Record low0° (1996)
Thu, 1944° / 29°0.08
44 °
Delmont, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.08 in
Chance of precipitation25%
Record high66° (2003)
Record low9° (1985)
Fri, 2042° / 28°0.06
42 °
Delmont, Friday, 20 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.06 in
Chance of precipitation17%
Record high69° (1962)
Record low3° (1985)
Sat, 2142° / 26°0.04
42 °
Delmont, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.04 in
Chance of precipitation10%
Record high68° (1960)
Record low-6° (1985)
Sun, 2242° / 26°0.02
42 °
Delmont, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.02 in
Chance of precipitation15%
Record high65° (1974)
Record low2° (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 Delmont, 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 Delmont, 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.