Interior Weather Forecast 15 Days, Weather in Interior Today

Current weather conditions and 15 day weather forecast for Interior, 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 Interior

21 August 2026 Friday
25.3 ° C / 77.5°F
Clear
Clear
Feels Like : 21.9 ° C / 71.4°F
Humidity : % 26
Pressure : 1014 mb
Wind Speed : 11.2 kmph / 6.9 miles from EE
Visibility : 10 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 0

15 day weather forecast for Interior, SD, USA

Weather Forecast for next 15 Days for Interior 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 Interior, 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
20 August 2026 Thursday Sunny Sunny 18.7 ° C
(65.7°F)
35.7 ° C
(96.3°F)
26.6 ° C
(79.8°F)
% 45 1% 7.4 Sunrise:05:58 AM
Sunset: 07:44 PM
Moonrise:03:19 PM
Moonset: 11:37 PM
Moon Phase
( First Quarter )
21 August 2026 Friday Sunny Sunny 18.6 ° C
(65.5°F)
31 ° C
(87.9°F)
25.7 ° C
(78.2°F)
% 33 3% 7.8 Sunrise:05:59 AM
Sunset: 07:42 PM
Moonrise:04:18 PM
Moonset: Does not set today
Moon Phase
( First Quarter )
22 August 2026 Saturday Overcast Overcast 18.7 ° C
(65.7°F)
28.9 ° C
(84°F)
25.1 ° C
(77.1°F)
% 42 9% 7.8 Sunrise:06:00 AM
Sunset: 07:41 PM
Moonrise:05:07 PM
Moonset: 12:27 AM
Moon Phase
( Waxing Gibbous )
23 August 2026 Sunday Sunny Sunny 20.5 ° C
(69°F)
36.2 ° C
(97.2°F)
28.5 ° C
(83.3°F)
% 42 57% 8.4 Sunrise:06:01 AM
Sunset: 07:39 PM
Moonrise:05:47 PM
Moonset: 01:24 AM
Moon Phase
( Waxing Gibbous )
24 August 2026 Monday Sunny Sunny 20.1 ° C
(68.1°F)
32.5 ° C
(90.4°F)
26 ° C
(78.9°F)
% 44 57% 8.1 Sunrise:06:02 AM
Sunset: 07:37 PM
Moonrise:06:20 PM
Moonset: 02:27 AM
Moon Phase
( Waxing Gibbous )
25 August 2026 Tuesday Sunny Sunny 20.8 ° C
(69.5°F)
28.7 ° C
(83.6°F)
24.8 ° C
(76.6°F)
% 41 36% 7 Sunrise:06:03 AM
Sunset: 07:36 PM
Moonrise:06:46 PM
Moonset: 03:32 AM
Moon Phase
( Full Moon )
26 August 2026 Wednesday Sunny Sunny 20.4 ° C
(68.6°F)
28.7 ° C
(83.7°F)
25.4 ° C
(77.7°F)
% 32 1% 7 Sunrise:06:04 AM
Sunset: 07:34 PM
Moonrise:07:08 PM
Moonset: 04:37 AM
Moon Phase
( Full Moon )
27 August 2026 Thursday Sunny Sunny 21.7 ° C
(71.1°F)
31.7 ° C
(89°F)
26.2 ° C
(79.2°F)
% 45 36% 8 Sunrise:06:06 AM
Sunset: 07:32 PM
Moonrise:07:27 PM
Moonset: 05:41 AM
Moon Phase
( Full Moon )
28 August 2026 Friday Sunny Sunny 21.6 ° C
(70.8°F)
34.5 ° C
(94.1°F)
28.2 ° C
(82.7°F)
% 41 3% 8 Sunrise:06:07 AM
Sunset: 07:31 PM
Moonrise:07:44 PM
Moonset: 06:45 AM
Moon Phase
( Full Moon )
29 August 2026 Saturday Sunny Sunny 16.4 ° C
(61.6°F)
28.2 ° C
(82.8°F)
22.4 ° C
(72.3°F)
% 49 4% 7 Sunrise:06:08 AM
Sunset: 07:29 PM
Moonrise:08:02 PM
Moonset: 07:48 AM
Moon Phase
( Waning Gibbous )
30 August 2026 Sunday Sunny Sunny 16.6 ° C
(61.9°F)
26.8 ° C
(80.3°F)
20.2 ° C
(68.3°F)
% 64 70% 7 Sunrise:06:09 AM
Sunset: 07:27 PM
Moonrise:08:20 PM
Moonset: 08:53 AM
Moon Phase
( Waning Gibbous )
31 August 2026 Monday Sunny Sunny 14.3 ° C
(57.7°F)
21.8 ° C
(71.3°F)
17.8 ° C
(64.1°F)
% 62 6% 6 Sunrise:06:10 AM
Sunset: 07:25 PM
Moonrise:08:40 PM
Moonset: 09:59 AM
Moon Phase
( Waning Gibbous )
01 September 2026 Tuesday Overcast Overcast 11.4 ° C
(52.6°F)
27.2 ° C
(81°F)
20.1 ° C
(68.1°F)
% 55 17% 7 Sunrise:06:11 AM
Sunset: 07:24 PM
Moonrise:09:04 PM
Moonset: 11:07 AM
Moon Phase
( Waning Gibbous )
02 September 2026 Wednesday Overcast Overcast 25.2 ° C
(77.4°F)
32.1 ° C
(89.8°F)
29 ° C
(84.3°F)
% 33 7% 8 Sunrise:06:12 AM
Sunset: 07:22 PM
Moonrise:09:33 PM
Moonset: 12:19 PM
Moon Phase
( Last Quarter )
Interior Weather forecasts are usually fully updated every 4 hours.
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