Monthly outlook for Gustave, SD: average high 57.8°, average low 40.8°. That is 1° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 10 October (80.3°), the coolest 17 October (24.9°).
57.8°/40.8°
Average high / low
+1°
Above normal
3 / 3
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
58.4°
56.6°
+1°
20 October – 29 October
56.8°
53.8°
+1.7°
30 October – 8 November
at normal
47.5°
—
October records over 66 years
90.5°4 October 1963All-time high
-10.5°30 October 1991All-time low
Sun, 1154° / 43°0.06
54 °
Gustave, Sunday, 11 October
Light rain. High 54°, low 43°.
Pressure29.85 inHg
Wind8.9 mph NE
Humidity85%
Visibility6.2 mi
Dew point45°
Mon, 1248° / 41°0.04
48 °
Gustave, Monday, 12 October
Light rain. High 48°, low 41°.
Pressure29.94 inHg
Wind8.5 mph NW
Humidity88%
Visibility6.2 mi
Dew point43°
Tue, 1348° / 37°0
48 °
Gustave, Tuesday, 13 October
Overcast. High 48°, low 37°.
Pressure30.12 inHg
Wind4.2 mph SE
Humidity65%
Visibility6.2 mi
Dew point33°
Wed, 1458° / 40°0
58 °
Gustave, Wednesday, 14 October
Clear. High 58°, low 40°.
Pressure30.24 inHg
Wind9.9 mph SE
Humidity50%
Visibility—
Dew point35°
Thu, 1564° / 42°0
64 °
Gustave, Thursday, 15 October
Light rain. High 64°, low 42°.
Pressure30.30 inHg
Wind10.7 mph SE
Humidity55%
Visibility—
Dew point40°
Fri, 1645° / 32°0
45 °
Gustave, Friday, 16 October
Clear. High 45°, low 32°.
Pressure30.65 inHg
Wind26.4 mph NW
Humidity35%
Visibility—
Dew point13°
Sat, 1750° / 25°0
50 °
Gustave, Saturday, 17 October
Clear. High 50°, low 25°.
Pressure30.36 inHg
Wind19.9 mph SE
Humidity21%
Visibility—
Dew point3°
Sun, 1867° / 41°0
67 °
Gustave, Sunday, 18 October
Overcast. High 67°, low 41°.
Pressure29.97 inHg
Wind10.4 mph W
Humidity24%
Visibility—
Dew point22°
Mon, 1970° / 48°0
70 °
Gustave, Monday, 19 October
Clear. High 70°, low 48°.
Pressure29.80 inHg
Wind8.9 mph NE
Humidity23%
Visibility—
Dew point26°
Tue, 2053° / 43°0.58
53 °
Gustave, Tuesday, 20 October
Rain. High 53°, low 43°.
Pressure29.80 inHg
Wind26.1 mph NW
Humidity89%
Visibility—
Dew point42°
Wed, 2162° / 37°0
62 °
Gustave, Wednesday, 21 October
Partly cloudy. High 62°, low 37°.
Pressure29.97 inHg
Wind17.6 mph NW
Humidity40%
Visibility—
Dew point29°
Thu, 2255° / 42°0
55 °
Gustave, Thursday, 22 October
Clear. High 55°, low 42°.
Pressure30.15 inHg
Wind11.9 mph NW
Humidity28%
Visibility—
Dew point19°
Fri, 2360° / 41°0
60 °
Gustave, Friday, 23 October
Overcast. High 60°, low 41°.
Pressure29.97 inHg
Wind10 mph SE
Humidity37%
Visibility—
Dew point27°
Sat, 2462° / 49°0
62 °
Gustave, Saturday, 24 October
Overcast. High 62°, low 49°.
Pressure30.00 inHg
Wind20.1 mph NW
Humidity39%
Visibility—
Dew point33°
Sun, 2548° / 38°0
48 °
Gustave, Sunday, 25 October
Overcast. High 48°, low 38°.
Pressure30.53 inHg
Wind16.2 mph NW
Humidity58%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2654° / 34°0.04
54 °
Gustave, Monday, 26 October
Climate normal for this date — 60-year average.
Average high54°
Average low34°
Average precipitation0.04 in
Chance of precipitation15%
Record high73° (1990)
Record low-9° (2020)
Tue, 2752° / 33°0.03
52 °
Gustave, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.03 in
Chance of precipitation20%
Record high73° (2016)
Record low9° (2023)
Wed, 2852° / 33°0.06
52 °
Gustave, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.06 in
Chance of precipitation20%
Record high76° (1985)
Record low9° (2023)
Thu, 2950° / 32°0.09
50 °
Gustave, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.09 in
Chance of precipitation30%
Record high77° (1968)
Record low0° (1991)
Fri, 3048° / 31°0.03
48 °
Gustave, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.03 in
Chance of precipitation15%
Record high73° (1968)
Record low-10° (1991)
Sat, 3149° / 31°0.03
49 °
Gustave, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.03 in
Chance of precipitation13%
Record high75° (1999)
Record low-6° (1991)
Sun, 0148° / 31°0.05
48 °
Gustave, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.05 in
Chance of precipitation15%
Record high72° (1965)
Record low4° (1991)
Mon, 0248° / 30°0.02
48 °
Gustave, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.02 in
Chance of precipitation12%
Record high73° (1965)
Record low-8° (1991)
Tue, 0347° / 31°0.02
47 °
Gustave, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.02 in
Chance of precipitation15%
Record high67° (1975)
Record low-8° (1991)
Wed, 0449° / 30°0.02
49 °
Gustave, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.02 in
Chance of precipitation15%
Record high75° (1978)
Record low6° (1991)
Thu, 0547° / 30°0.02
47 °
Gustave, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.02 in
Chance of precipitation15%
Record high69° (1975)
Record low-1° (2003)
Fri, 0647° / 29°0.04
47 °
Gustave, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation10%
Record high69° (2009)
Record low2° (1991)
Sat, 0747° / 29°0.03
47 °
Gustave, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation12%
Record high75° (1999)
Record low-6° (1991)
Sun, 0845° / 28°0.03
45 °
Gustave, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.03 in
Chance of precipitation20%
Record high74° (1999)
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 Gustave, 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 Gustave, 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.