Monthly outlook for Roslyn, SD: average high 56.3°, average low 40°. That is 3.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 22 October (68.9°), the coolest 27 October (30.1°).
56.3°/40°
Average high / low
+3.4°
Above normal
3 / 3
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
59.3°
52.2°
+4°
29 October – 7 November
51.2°
46.2°
+2.8°
8 November – 17 November
at normal
39.6°
—
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).
Tue, 2064° / 41°0
64 °
Roslyn, Tuesday, 20 October
Clear. High 64°, low 41°.
Pressure30.18 inHg
Wind12.4 mph S
Humidity72%
Visibility6.2 mi
Dew point48°
Wed, 2163° / 48°0
63 °
Roslyn, Wednesday, 21 October
Clear. High 63°, low 48°.
Pressure30.24 inHg
Wind7.3 mph E
Humidity73%
Visibility6.2 mi
Dew point51°
Thu, 2269° / 51°0
69 °
Roslyn, Thursday, 22 October
Clear. High 69°, low 51°.
Pressure30.15 inHg
Wind11.9 mph SE
Humidity78%
Visibility6.2 mi
Dew point55°
Fri, 2366° / 56°0.06
66 °
Roslyn, Friday, 23 October
Light rain. High 66°, low 56°.
Pressure29.94 inHg
Wind24.7 mph SE
Humidity81%
Visibility—
Dew point54°
Sat, 2462° / 44°0
62 °
Roslyn, Saturday, 24 October
Overcast. High 62°, low 44°.
Pressure29.97 inHg
Wind23.5 mph S
Humidity60%
Visibility—
Dew point47°
Sun, 2547° / 35°0
47 °
Roslyn, Sunday, 25 October
Clear. High 47°, low 35°.
Pressure30.30 inHg
Wind19.1 mph W
Humidity33%
Visibility—
Dew point16°
Mon, 2647° / 34°0
47 °
Roslyn, Monday, 26 October
Overcast. High 47°, low 34°.
Pressure30.12 inHg
Wind15.9 mph E
Humidity54%
Visibility—
Dew point28°
Tue, 2750° / 30°0
50 °
Roslyn, Tuesday, 27 October
Clear. High 50°, low 30°.
Pressure30.24 inHg
Wind11 mph SE
Humidity37%
Visibility—
Dew point19°
Wed, 2861° / 34°0
61 °
Roslyn, Wednesday, 28 October
Partly cloudy. High 61°, low 34°.
Pressure29.91 inHg
Wind19.4 mph S
Humidity62%
Visibility—
Dew point40°
Thu, 2964° / 50°0.07
64 °
Roslyn, Thursday, 29 October
Light rain. High 64°, low 50°.
Pressure29.53 inHg
Wind26.2 mph S
Humidity60%
Visibility—
Dew point48°
Fri, 3048° / 35°0.63
48 °
Roslyn, Friday, 30 October
Heavy rain. High 48°, low 35°.
Pressure29.35 inHg
Wind36.7 mph SW
Humidity63%
Visibility—
Dew point28°
Sat, 3141° / 32°0
41 °
Roslyn, Saturday, 31 October
Overcast. High 41°, low 32°.
Pressure30.00 inHg
Wind22.7 mph W
Humidity46%
Visibility—
Dew point19°
Sun, 0142° / 32°0
42 °
Roslyn, Sunday, 1 November
Overcast. High 42°, low 32°.
Pressure29.77 inHg
Wind19.3 mph W
Humidity70%
Visibility—
Dew point30°
Mon, 0256° / 32°0
56 °
Roslyn, Monday, 2 November
Mostly clear. High 56°, low 32°.
Pressure29.71 inHg
Wind15.3 mph S
Humidity37%
Visibility—
Dew point26°
Tue, 0356° / 47°0
56 °
Roslyn, Tuesday, 3 November
Mostly clear. High 56°, low 47°.
Pressure29.44 inHg
Wind19.1 mph S
Humidity57%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 1540° / 27°0.03
40 °
Roslyn, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.03 in
Chance of precipitation17%
Record high61° (2015)
Record low8° (2014)
Mon, 1639° / 27°0.04
39 °
Roslyn, Monday, 16 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.04 in
Chance of precipitation17%
Record high66° (2001)
Record low1° (2014)
Tue, 1738° / 26°0.04
38 °
Roslyn, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.04 in
Chance of precipitation15%
Record high62° (2001)
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 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.