Monthly outlook for Garretson, SD: average high 61.6°, average low 45.5°. That is 2.6° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 11 October (82.1°), the coolest 26 October (30.8°).
61.6°/45.5°
Average high / low
+2.6°
Above normal
4 / 3
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
64.7°
58°
+3.7°
21 October – 30 October
56.5°
54.1°
+1.4°
31 October – 9 November
at normal
48.2°
—
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).
Mon, 1281° / 56°0
81 °
Garretson, Monday, 12 October
Clear. High 81°, low 56°.
Pressure29.62 inHg
Wind5.4 mph SE
Humidity61%
Visibility6.2 mi
Dew point61°
Tue, 1360° / 49°0
60 °
Garretson, Tuesday, 13 October
Overcast. High 60°, low 49°.
Pressure30.03 inHg
Wind8.2 mph N
Humidity63%
Visibility6.2 mi
Dew point43°
Wed, 1459° / 45°0
59 °
Garretson, Wednesday, 14 October
Partly cloudy. High 59°, low 45°.
Pressure30.21 inHg
Wind7.5 mph NE
Humidity57%
Visibility6.2 mi
Dew point40°
Thu, 1558° / 48°0.04
58 °
Garretson, Thursday, 15 October
Light rain. High 58°, low 48°.
Pressure30.18 inHg
Wind10 mph N
Humidity73%
Visibility6.2 mi
Dew point46°
Fri, 1656° / 42°0
56 °
Garretson, Friday, 16 October
Clear. High 56°, low 42°.
Pressure30.71 inHg
Wind16.5 mph N
Humidity48%
Visibility—
Dew point31°
Sat, 1754° / 38°0
54 °
Garretson, Saturday, 17 October
Overcast. High 54°, low 38°.
Pressure30.39 inHg
Wind22.7 mph S
Humidity36%
Visibility—
Dew point24°
Sun, 1864° / 42°0
64 °
Garretson, Sunday, 18 October
Clear. High 64°, low 42°.
Pressure30.03 inHg
Wind19.2 mph S
Humidity36%
Visibility—
Dew point29°
Mon, 1965° / 44°0
65 °
Garretson, Monday, 19 October
Mostly clear. High 65°, low 44°.
Pressure30.18 inHg
Wind9.7 mph SE
Humidity40%
Visibility—
Dew point35°
Tue, 2068° / 48°0
68 °
Garretson, Tuesday, 20 October
Clear. High 68°, low 48°.
Pressure29.97 inHg
Wind20.6 mph S
Humidity48%
Visibility—
Dew point42°
Wed, 2169° / 56°0.17
69 °
Garretson, Wednesday, 21 October
Light rain. High 69°, low 56°.
Pressure29.88 inHg
Wind19.5 mph S
Humidity49%
Visibility—
Dew point46°
Thu, 2270° / 52°0.25
70 °
Garretson, Thursday, 22 October
Rain. High 70°, low 52°.
Pressure29.91 inHg
Wind13.9 mph S
Humidity80%
Visibility—
Dew point59°
Fri, 2362° / 46°0.34
62 °
Garretson, Friday, 23 October
Rain. High 62°, low 46°.
Pressure30.15 inHg
Wind21 mph N
Humidity69%
Visibility—
Dew point38°
Sat, 2442° / 37°0
42 °
Garretson, Saturday, 24 October
Light rain. High 42°, low 37°.
Pressure30.36 inHg
Wind15.7 mph NW
Humidity79%
Visibility—
Dew point33°
Sun, 2551° / 33°0
51 °
Garretson, Sunday, 25 October
Clear. High 51°, low 33°.
Pressure30.18 inHg
Wind13.7 mph SW
Humidity47%
Visibility—
Dew point26°
Mon, 2645° / 31°0
45 °
Garretson, Monday, 26 October
Partly cloudy. High 45°, low 31°.
Pressure30.30 inHg
Wind19.4 mph NW
Humidity53%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2753° / 37°0.08
53 °
Garretson, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.08 in
Chance of precipitation27%
Record high74° (1999)
Record low9° (2020)
Wed, 2852° / 37°0.04
52 °
Garretson, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.04 in
Chance of precipitation18%
Record high74° (2016)
Record low17° (2017)
Thu, 2953° / 36°0.07
53 °
Garretson, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.07 in
Chance of precipitation27%
Record high72° (2004)
Record low21° (1991)
Fri, 3051° / 36°0.11
51 °
Garretson, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.11 in
Chance of precipitation25%
Record high68° (1965)
Record low18° (1991)
Sat, 3151° / 34°0.09
51 °
Garretson, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.09 in
Chance of precipitation23%
Record high71° (1990)
Record low18° (1993)
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)
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.