Roslyn Weather Forecast 15 Days, Weather in Roslyn Today

Current weather conditions and 15 day weather forecast for Roslyn, South Dakota, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.

Current weather conditions at Roslyn

11 August 2026 Tuesday
23.4 ° C / 74.1°F
Sunny
Sunny
Feels Like : 22 ° C / 71.6°F
Humidity : % 68
Pressure : 1009 mb
Wind Speed : 19.8 kmph / 12.3 miles from EE
Visibility : 10 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 0

15 day weather forecast for Roslyn, SD, USA

Weather Forecast for next 15 Days for Roslyn including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.
Here is weather for the next 15 days in Roslyn, South Dakota state, US. To see the daily forecast, scroll to the table below.
Date Weather forecast Low temperature High temperature Avg. temperature Humidity Chance of rain UV Index Sun Position Moon Position
10 August 2026 Monday Sunny Sunny 12.3 ° C
(54.1°F)
27.1 ° C
(80.8°F)
20 ° C
(68°F)
% 73 7% 6.3 Sunrise:06:24 AM
Sunset: 08:45 PM
Moonrise:02:57 AM
Moonset: 07:37 PM
Moon Phase
( New Moon )
11 August 2026 Tuesday Sunny Sunny 18.1 ° C
(64.6°F)
34.6 ° C
(94.3°F)
25.5 ° C
(77.9°F)
% 64 57% 5.9 Sunrise:06:25 AM
Sunset: 08:44 PM
Moonrise:04:20 AM
Moonset: 08:14 PM
Moon Phase
( New Moon )
12 August 2026 Wednesday Sunny Sunny 17 ° C
(62.6°F)
30.7 ° C
(87.2°F)
23.3 ° C
(74°F)
% 66 67% 6.5 Sunrise:06:27 AM
Sunset: 08:42 PM
Moonrise:05:48 AM
Moonset: 08:43 PM
Moon Phase
( New Moon )
13 August 2026 Thursday Sunny Sunny 15.7 ° C
(60.2°F)
25.1 ° C
(77.1°F)
20.1 ° C
(68.1°F)
% 65 62% 5.9 Sunrise:06:28 AM
Sunset: 08:41 PM
Moonrise:07:14 AM
Moonset: 09:07 PM
Moon Phase
( New Moon )
14 August 2026 Friday Sunny Sunny 15.3 ° C
(59.5°F)
28.3 ° C
(83°F)
21 ° C
(69.9°F)
% 59 36% 6.1 Sunrise:06:29 AM
Sunset: 08:39 PM
Moonrise:08:38 AM
Moonset: 09:28 PM
Moon Phase
( Waxing Crescent )
15 August 2026 Saturday Patchy rain nearby Patchy rain nearby 16.9 ° C
(62.4°F)
29.4 ° C
(85°F)
22.2 ° C
(72°F)
% 72 24% 7 Sunrise:06:30 AM
Sunset: 08:38 PM
Moonrise:09:58 AM
Moonset: 09:48 PM
Moon Phase
( Waxing Crescent )
16 August 2026 Sunday Sunny Sunny 13.2 ° C
(55.8°F)
27.9 ° C
(82.2°F)
20.1 ° C
(68.2°F)
% 55 2% 7 Sunrise:06:32 AM
Sunset: 08:36 PM
Moonrise:11:17 AM
Moonset: 10:08 PM
Moon Phase
( Waxing Crescent )
17 August 2026 Monday Sunny Sunny 17.3 ° C
(63.2°F)
32.5 ° C
(90.4°F)
24.3 ° C
(75.8°F)
% 50 3% 8 Sunrise:06:33 AM
Sunset: 08:34 PM
Moonrise:12:33 PM
Moonset: 10:31 PM
Moon Phase
( Waxing Crescent )
18 August 2026 Tuesday Sunny Sunny 17.9 ° C
(64.2°F)
34.7 ° C
(94.5°F)
26 ° C
(78.8°F)
% 62 60% 8 Sunrise:06:34 AM
Sunset: 08:33 PM
Moonrise:01:49 PM
Moonset: 10:57 PM
Moon Phase
( First Quarter )
19 August 2026 Wednesday Sunny Sunny 21.4 ° C
(70.5°F)
33.3 ° C
(91.9°F)
28.5 ° C
(83.3°F)
% 49 3% 8 Sunrise:06:35 AM
Sunset: 08:31 PM
Moonrise:03:01 PM
Moonset: 11:30 PM
Moon Phase
( First Quarter )
20 August 2026 Thursday Sunny Sunny 15 ° C
(59°F)
22 ° C
(71.7°F)
19.7 ° C
(67.5°F)
% 67 7% 6 Sunrise:06:36 AM
Sunset: 08:29 PM
Moonrise:04:09 PM
Moonset: Does not set today
Moon Phase
( First Quarter )
21 August 2026 Friday Patchy light drizzle Patchy light drizzle 14.9 ° C
(58.8°F)
19.9 ° C
(67.8°F)
16.9 ° C
(62.4°F)
% 95 89% 4 Sunrise:06:38 AM
Sunset: 08:28 PM
Moonrise:05:08 PM
Moonset: 12:10 AM
Moon Phase
( First Quarter )
22 August 2026 Saturday Overcast Overcast 13 ° C
(55.5°F)
25.6 ° C
(78.1°F)
18.6 ° C
(65.6°F)
% 81 20% 7 Sunrise:06:39 AM
Sunset: 08:26 PM
Moonrise:05:58 PM
Moonset: 01:00 AM
Moon Phase
( Waxing Gibbous )
23 August 2026 Sunday Sunny Sunny 15.8 ° C
(60.4°F)
28.3 ° C
(82.9°F)
21.3 ° C
(70.3°F)
% 67 9% 7 Sunrise:06:40 AM
Sunset: 08:24 PM
Moonrise:06:37 PM
Moonset: 01:57 AM
Moon Phase
( Waxing Gibbous )
Roslyn Weather forecasts are usually fully updated every 4 hours.
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