Monthly outlook for Roslyn, SD: average high 58.3°, average low 44.6°. That is 3.7° above the climate normal for October. Precipitation is expected on 5 days (about 0.5 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 23 October (69.5°), the coolest 26 October (32.3°).
58.3°/44.6°
Average high / low
+3.7°
Above normal
5 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
60°
53°
+3.9°
26 October – 4 November
55.6°
47.9°
+4.3°
5 November – 14 November
at normal
41.5°
—
October records over 66 years
83.5°1 October 2023All-time high
12.4°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Enemy Swim (11 mi).
Sat, 1760° / 40°0
60 °
Roslyn, Saturday, 17 October
Clear. High 60°, low 40°.
Pressure30.18 inHg
Wind16.9 mph SW
Humidity50%
Visibility6.2 mi
Dew point35°
Sun, 1863° / 47°0
63 °
Roslyn, Sunday, 18 October
Clear. High 63°, low 47°.
Pressure30.06 inHg
Wind6.3 mph SW
Humidity54%
Visibility6.2 mi
Dew point42°
Mon, 1959° / 46°0
59 °
Roslyn, Monday, 19 October
Clear. High 59°, low 46°.
Pressure30.18 inHg
Wind10 mph E
Humidity67%
Visibility6.2 mi
Dew point46°
Tue, 2063° / 47°0
63 °
Roslyn, Tuesday, 20 October
Clear. High 63°, low 47°.
Pressure30.12 inHg
Wind11.6 mph S
Humidity78%
Visibility6.2 mi
Dew point49°
Wed, 2165° / 50°0
65 °
Roslyn, Wednesday, 21 October
Clear. High 65°, low 50°.
Pressure30.12 inHg
Wind8 mph NE
Humidity72%
Visibility—
Dew point51°
Thu, 2268° / 53°0
68 °
Roslyn, Thursday, 22 October
Partly cloudy. High 68°, low 53°.
Pressure30.03 inHg
Wind13.5 mph E
Humidity59%
Visibility—
Dew point51°
Fri, 2369° / 59°0.15
69 °
Roslyn, Friday, 23 October
Light rain. High 69°, low 59°.
Pressure29.77 inHg
Wind22 mph SE
Humidity72%
Visibility—
Dew point54°
Sat, 2460° / 45°0.1
60 °
Roslyn, Saturday, 24 October
Light rain. High 60°, low 45°.
Pressure30.09 inHg
Wind15.7 mph W
Humidity45%
Visibility—
Dew point33°
Sun, 2543° / 39°0.02
43 °
Roslyn, Sunday, 25 October
Light rain. High 43°, low 39°.
Pressure30.27 inHg
Wind14 mph NW
Humidity69%
Visibility—
Dew point33°
Mon, 2648° / 32°0
48 °
Roslyn, Monday, 26 October
Clear. High 48°, low 32°.
Pressure30.36 inHg
Wind10.9 mph W
Humidity43%
Visibility—
Dew point22°
Tue, 2761° / 36°0
61 °
Roslyn, Tuesday, 27 October
Clear. High 61°, low 36°.
Pressure30.09 inHg
Wind14.3 mph SW
Humidity45%
Visibility—
Dew point35°
Wed, 2858° / 48°0.04
58 °
Roslyn, Wednesday, 28 October
Light rain. High 58°, low 48°.
Pressure29.71 inHg
Wind19.9 mph S
Humidity71%
Visibility—
Dew point46°
Thu, 2954° / 46°0.02
54 °
Roslyn, Thursday, 29 October
Light rain. High 54°, low 46°.
Pressure29.68 inHg
Wind24 mph W
Humidity68%
Visibility—
Dew point41°
Fri, 3052° / 42°0
52 °
Roslyn, Friday, 30 October
Overcast. High 52°, low 42°.
Pressure30.09 inHg
Wind14.3 mph NW
Humidity54%
Visibility—
Dew point34°
Sat, 3161° / 47°0.07
61 °
Roslyn, Saturday, 31 October
Light rain. High 61°, low 47°.
Pressure29.59 inHg
Wind15.3 mph S
Humidity56%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0146° / 34°0.06
46 °
Roslyn, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.06 in
Chance of precipitation27%
Record high69° (1990)
Record low13° (1984)
Mon, 0246° / 33°0.05
46 °
Roslyn, Monday, 2 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.05 in
Chance of precipitation22%
Record high71° (1978)
Record low10° (1991)
Tue, 0345° / 33°0.04
45 °
Roslyn, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.04 in
Chance of precipitation22%
Record high68° (1978)
Record low6° (1991)
Wed, 0445° / 31°0.02
45 °
Roslyn, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.02 in
Chance of precipitation12%
Record high67° (2015)
Record low3° (1991)
Thu, 0546° / 32°0.03
46 °
Roslyn, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.03 in
Chance of precipitation15%
Record high69° (2016)
Record low11° (2003)
Fri, 0645° / 31°0.03
45 °
Roslyn, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.03 in
Chance of precipitation13%
Record high69° (2020)
Record low1° (1991)
Sat, 0745° / 31°0.04
45 °
Roslyn, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.04 in
Chance of precipitation13%
Record high66° (1999)
Record low-1° (1991)
Sun, 0844° / 30°0.06
44 °
Roslyn, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.06 in
Chance of precipitation18%
Record high68° (1999)
Record low7° (2003)
Mon, 0941° / 29°0.08
41 °
Roslyn, Monday, 9 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.08 in
Chance of precipitation23%
Record high62° (1999)
Record low11° (2018)
Tue, 1039° / 27°0.08
39 °
Roslyn, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.08 in
Chance of precipitation23%
Record high59° (2015)
Record low5° (1986)
Wed, 1138° / 26°0.03
38 °
Roslyn, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.03 in
Chance of precipitation20%
Record high61° (2005)
Record low5° (1986)
Thu, 1238° / 26°0.06
38 °
Roslyn, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation20%
Record high63° (1999)
Record low2° (1966)
Fri, 1340° / 28°0.04
40 °
Roslyn, Friday, 13 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.04 in
Chance of precipitation23%
Record high66° (1999)
Record low2° (1982)
Sat, 1440° / 28°0.02
40 °
Roslyn, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.02 in
Chance of precipitation13%
Record high63° (2025)
Record low5° (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 Roslyn, 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 Roslyn, 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.