Monthly outlook for Roslyn, SD: average high 61.5°, average low 45.8°. That is 4.6° above the climate normal for October. Precipitation is expected on 6 days (about 0.9 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 21 October (76.9°), the coolest 16 October (38.9°).
61.5°/45.8°
Average high / low
+4.6°
Above normal
6 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
61.4°
54.2°
+4°
22 October – 31 October
61.6°
50.3°
+6.3°
1 November – 10 November
at normal
44.1°
—
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, 1352° / 42°0.08
52 °
Roslyn, Tuesday, 13 October
Rain. High 52°, low 42°.
Pressure30.03 inHg
Wind10.9 mph NW
Humidity79%
Visibility6.2 mi
Dew point41°
Wed, 1454° / 42°0.08
54 °
Roslyn, Wednesday, 14 October
Rain. High 54°, low 42°.
Pressure30.27 inHg
Wind3.2 mph N
Humidity64%
Visibility6.2 mi
Dew point38°
Thu, 1557° / 45°0
57 °
Roslyn, Thursday, 15 October
Overcast. High 57°, low 45°.
Pressure30.24 inHg
Wind14.1 mph NW
Humidity62%
Visibility6.2 mi
Dew point43°
Fri, 1651° / 39°0
51 °
Roslyn, Friday, 16 October
Clear. High 51°, low 39°.
Pressure30.74 inHg
Wind8.5 mph NW
Humidity63%
Visibility6.2 mi
Dew point32°
Sat, 1761° / 43°0
61 °
Roslyn, Saturday, 17 October
Clear. High 61°, low 43°.
Pressure30.09 inHg
Wind19.2 mph S
Humidity40%
Visibility—
Dew point31°
Sun, 1872° / 44°0
72 °
Roslyn, Sunday, 18 October
Clear. High 72°, low 44°.
Pressure29.80 inHg
Wind17.8 mph S
Humidity23%
Visibility—
Dew point27°
Mon, 1965° / 49°0
65 °
Roslyn, Monday, 19 October
Mostly clear. High 65°, low 49°.
Pressure30.12 inHg
Wind11.1 mph NE
Humidity31%
Visibility—
Dew point30°
Tue, 2068° / 44°0
68 °
Roslyn, Tuesday, 20 October
Clear. High 68°, low 44°.
Pressure30.06 inHg
Wind16.8 mph SE
Humidity41%
Visibility—
Dew point37°
Wed, 2177° / 55°0.05
77 °
Roslyn, Wednesday, 21 October
Light rain. High 77°, low 55°.
Pressure29.88 inHg
Wind21.6 mph S
Humidity50%
Visibility—
Dew point52°
Thu, 2268° / 54°0.29
68 °
Roslyn, Thursday, 22 October
Rain. High 68°, low 54°.
Pressure29.94 inHg
Wind20.4 mph S
Humidity83%
Visibility—
Dew point62°
Fri, 2363° / 51°0.16
63 °
Roslyn, Friday, 23 October
Rain. High 63°, low 51°.
Pressure30.06 inHg
Wind16.1 mph SE
Humidity76%
Visibility—
Dew point53°
Sat, 2464° / 48°0.22
64 °
Roslyn, Saturday, 24 October
Light rain. High 64°, low 48°.
Pressure29.38 inHg
Wind26 mph NW
Humidity50%
Visibility—
Dew point40°
Sun, 2554° / 41°0.02
54 °
Roslyn, Sunday, 25 October
Light rain. High 54°, low 41°.
Pressure30.30 inHg
Wind24.2 mph NW
Humidity43%
Visibility—
Dew point27°
Mon, 2667° / 43°0
67 °
Roslyn, Monday, 26 October
Partly cloudy. High 67°, low 43°.
Pressure30.09 inHg
Wind18.2 mph W
Humidity38%
Visibility—
Dew point34°
Tue, 2755° / 42°0
55 °
Roslyn, Tuesday, 27 October
Clear. High 55°, low 42°.
Pressure30.21 inHg
Wind16.8 mph N
Humidity40%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2849° / 36°0.02
49 °
Roslyn, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.02 in
Chance of precipitation17%
Record high68° (2024)
Record low21° (2023)
Thu, 2949° / 35°0.07
49 °
Roslyn, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation30%
Record high66° (2007)
Record low18° (1991)
Fri, 3048° / 35°0.09
48 °
Roslyn, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high66° (2007)
Record low16° (1991)
Sat, 3147° / 33°0.08
47 °
Roslyn, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.08 in
Chance of precipitation20%
Record high69° (1990)
Record low18° (1996)
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)
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.