Monthly outlook for Garretson, SD: average high 59.4°, average low 43.7°. That is 2.6° above the climate normal for October. Precipitation is expected on 3 days (about 1.9 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 23 October (77°), the coolest 31 October (30.6°).
59.4°/43.7°
Average high / low
+2.6°
Above normal
3 / 3
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
63.3°
56.2°
+4°
26 October – 4 November
52.9°
51°
+1.1°
5 November – 14 November
at normal
44.7°
—
October records over 66 years
89.2°3 October 2025All-time high
9.1°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Jasper (11 mi).
Sat, 1759° / 35°0
59 °
Garretson, Saturday, 17 October
Clear. High 59°, low 35°.
Pressure30.36 inHg
Wind15.1 mph S
Humidity47%
Visibility6.2 mi
Dew point32°
Sun, 1863° / 43°0
63 °
Garretson, Sunday, 18 October
Clear. High 63°, low 43°.
Pressure30.15 inHg
Wind14.4 mph S
Humidity53%
Visibility6.2 mi
Dew point39°
Mon, 1961° / 44°0
61 °
Garretson, Monday, 19 October
Partly cloudy. High 61°, low 44°.
Pressure30.18 inHg
Wind10.1 mph S
Humidity68%
Visibility6.2 mi
Dew point46°
Tue, 2066° / 46°0
66 °
Garretson, Tuesday, 20 October
Clear. High 66°, low 46°.
Pressure30.15 inHg
Wind15.3 mph SE
Humidity57%
Visibility—
Dew point44°
Wed, 2169° / 53°0
69 °
Garretson, Wednesday, 21 October
Clear. High 69°, low 53°.
Pressure30.09 inHg
Wind14 mph S
Humidity60%
Visibility—
Dew point49°
Thu, 2271° / 51°0.02
71 °
Garretson, Thursday, 22 October
Light rain. High 71°, low 51°.
Pressure30.12 inHg
Wind8.5 mph SE
Humidity37%
Visibility—
Dew point38°
Fri, 2377° / 57°0
77 °
Garretson, Friday, 23 October
Partly cloudy. High 77°, low 57°.
Pressure29.91 inHg
Wind21.7 mph S
Humidity65%
Visibility—
Dew point59°
Sat, 2469° / 48°0.02
69 °
Garretson, Saturday, 24 October
Light rain. High 69°, low 48°.
Pressure29.83 inHg
Wind21.9 mph S
Humidity50%
Visibility—
Dew point49°
Sun, 2550° / 42°0.04
50 °
Garretson, Sunday, 25 October
Light rain. High 50°, low 42°.
Pressure30.27 inHg
Wind11.9 mph N
Humidity57%
Visibility—
Dew point34°
Mon, 2646° / 43°1.3
46 °
Garretson, Monday, 26 October
Rain. High 46°, low 43°.
Pressure29.83 inHg
Wind15.4 mph NW
Humidity94%
Visibility—
Dew point44°
Tue, 2757° / 38°0
57 °
Garretson, Tuesday, 27 October
Clear. High 57°, low 38°.
Pressure29.83 inHg
Wind15.8 mph NW
Humidity49%
Visibility—
Dew point33°
Wed, 2860° / 44°0
60 °
Garretson, Wednesday, 28 October
Overcast. High 60°, low 44°.
Pressure29.80 inHg
Wind11.7 mph SE
Humidity64%
Visibility—
Dew point43°
Thu, 2958° / 51°0.44
58 °
Garretson, Thursday, 29 October
Rain. High 58°, low 51°.
Pressure29.65 inHg
Wind16.7 mph NW
Humidity98%
Visibility—
Dew point56°
Fri, 3048° / 36°0.11
48 °
Garretson, Friday, 30 October
Light rain. High 48°, low 36°.
Pressure29.74 inHg
Wind18.8 mph NW
Humidity80%
Visibility—
Dew point33°
Sat, 3149° / 31°0
49 °
Garretson, Saturday, 31 October
Mostly clear. High 49°, low 31°.
Pressure29.94 inHg
Wind9.2 mph NW
Humidity54%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0149° / 35°0.07
49 °
Garretson, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation13%
Record high71° (1990)
Record low17° (2002)
Mon, 0249° / 34°0.03
49 °
Garretson, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.03 in
Chance of precipitation13%
Record high71° (2022)
Record low9° (1991)
Tue, 0348° / 34°0.04
48 °
Garretson, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.04 in
Chance of precipitation20%
Record high70° (1978)
Record low2° (1991)
Wed, 0448° / 32°0.02
48 °
Garretson, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.02 in
Chance of precipitation13%
Record high69° (2020)
Record low-12° (1991)
Thu, 0549° / 33°0.05
49 °
Garretson, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.05 in
Chance of precipitation27%
Record high70° (2001)
Record low8° (1991)
Fri, 0648° / 32°0.04
48 °
Garretson, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (2020)
Record low1° (1991)
Sat, 0748° / 31°0.02
48 °
Garretson, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.02 in
Chance of precipitation12%
Record high70° (2001)
Record low-15° (1991)
Sun, 0847° / 31°0.06
47 °
Garretson, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.06 in
Chance of precipitation15%
Record high74° (1999)
Record low0° (1991)
Mon, 0945° / 31°0.14
45 °
Garretson, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.14 in
Chance of precipitation23%
Record high70° (1999)
Record low12° (2018)
Tue, 1043° / 28°0.09
43 °
Garretson, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.09 in
Chance of precipitation22%
Record high65° (2016)
Record low9° (1986)
Wed, 1141° / 26°0.04
41 °
Garretson, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.04 in
Chance of precipitation20%
Record high62° (1967)
Record low2° (1986)
Thu, 1241° / 26°0.06
41 °
Garretson, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.06 in
Chance of precipitation27%
Record high64° (1999)
Record low-3° (1966)
Fri, 1343° / 28°0.04
43 °
Garretson, Friday, 13 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.04 in
Chance of precipitation22%
Record high70° (1999)
Record low0° (1982)
Sat, 1443° / 29°0.02
43 °
Garretson, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.02 in
Chance of precipitation15%
Record high68° (2025)
Record low6° (2014)
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 Garretson, 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 Garretson, 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.