Monthly outlook for Roslyn, SD: average high 56.5°, average low 41.7°. That is 3.2° above the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 22 October (67.1°), the coolest 2 November (21.8°).
56.5°/41.7°
Average high / low
+3.2°
Above normal
5 / 3
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
60.4°
52.5°
+4.4°
28 October – 6 November
49.9°
46.7°
+1.8°
7 November – 16 November
at normal
40.4°
—
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).
Mon, 1961° / 37°0
61 °
Roslyn, Monday, 19 October
Clear. High 61°, low 37°.
Pressure30.30 inHg
Wind11.4 mph E
Humidity57%
Visibility6.2 mi
Dew point39°
Tue, 2063° / 43°0
63 °
Roslyn, Tuesday, 20 October
Clear. High 63°, low 43°.
Pressure30.18 inHg
Wind11.8 mph S
Humidity75%
Visibility6.2 mi
Dew point49°
Wed, 2164° / 47°0
64 °
Roslyn, Wednesday, 21 October
Clear. High 64°, low 47°.
Pressure30.24 inHg
Wind8.5 mph NE
Humidity71%
Visibility6.2 mi
Dew point51°
Thu, 2267° / 52°0
67 °
Roslyn, Thursday, 22 October
Overcast. High 67°, low 52°.
Pressure30.12 inHg
Wind13.4 mph SE
Humidity78%
Visibility6.2 mi
Dew point55°
Fri, 2366° / 55°0.17
66 °
Roslyn, Friday, 23 October
Rain. High 66°, low 55°.
Pressure29.80 inHg
Wind25 mph SE
Humidity62%
Visibility—
Dew point50°
Sat, 2460° / 45°0
60 °
Roslyn, Saturday, 24 October
Clear. High 60°, low 45°.
Pressure30.06 inHg
Wind23.8 mph W
Humidity46%
Visibility—
Dew point36°
Sun, 2555° / 36°0
55 °
Roslyn, Sunday, 25 October
Clear. High 55°, low 36°.
Pressure30.42 inHg
Wind12.9 mph W
Humidity38%
Visibility—
Dew point24°
Mon, 2648° / 43°0.3
48 °
Roslyn, Monday, 26 October
Light rain. High 48°, low 43°.
Pressure30.27 inHg
Wind14.7 mph E
Humidity96%
Visibility—
Dew point43°
Tue, 2755° / 43°0.04
55 °
Roslyn, Tuesday, 27 October
Light rain. High 55°, low 43°.
Pressure30.24 inHg
Wind12.8 mph E
Humidity95%
Visibility—
Dew point46°
Wed, 2858° / 50°0
58 °
Roslyn, Wednesday, 28 October
Overcast. High 58°, low 50°.
Pressure30.03 inHg
Wind13.3 mph SE
Humidity86%
Visibility—
Dew point50°
Thu, 2958° / 46°0.1
58 °
Roslyn, Thursday, 29 October
Light rain. High 58°, low 46°.
Pressure29.77 inHg
Wind14 mph S
Humidity68%
Visibility—
Dew point44°
Fri, 3054° / 38°0
54 °
Roslyn, Friday, 30 October
Partly cloudy. High 54°, low 38°.
Pressure30.00 inHg
Wind16.3 mph W
Humidity56%
Visibility—
Dew point34°
Sat, 3158° / 41°0
58 °
Roslyn, Saturday, 31 October
Clear. High 58°, low 41°.
Pressure30.03 inHg
Wind13.2 mph NE
Humidity44%
Visibility—
Dew point33°
Sun, 0144° / 27°0.62
44 °
Roslyn, Sunday, 1 November
Snow. High 44°, low 27°.
Pressure30.18 inHg
Wind21.2 mph N
Humidity98%
Visibility—
Dew point33°
Mon, 0228° / 22°0
28 °
Roslyn, Monday, 2 November
Partly cloudy. High 28°, low 22°.
Pressure30.59 inHg
Wind12.3 mph N
Humidity68%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)
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.