Arpan, SD Hourly Weather Forecast
Next 48 Hours
Fri, Sep 11th 2026
Starting off Sunny skies, turning Overcast conditions later in the day. Warming trend from 63°F to 87°. Windy conditions, shifting from W to N at 15.7 mph, as humidity ranges 14% to 46%, and an avg barometric pressure of 29.69 inHg.
| Fri, Sep 11th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
5 AM Overcast UV: 0 |
64°F Feels 55°F |
18% | 7.8 W | 29.58 | 19.5°F | 9% |
6 AM OvercastUV: 0 |
66°F Feels 56°F |
17% | 9.6 W | 29.6 | 20.6°F | 9% |
7 AM Overcast UV: 0 |
67°F Feels 56°F |
18% | 11.4 W | 29.61 | 22.2°F | 9% |
8 AM OvercastUV: 0.5 |
66°F Feels 53°F |
21% | 13.9 W | 29.61 | 25.1°F | 8% |
9 AM Sunny UV: 1.5 |
66°F Feels 52°F |
31% | 19.7 WNW | 29.61 | 35.2°F | 1% |
10 AM SunnyUV: 2.9 |
68°F Feels 56°F |
43% | 18.6 WNW | 29.62 | 44.6°F | 1% |
11 AM OvercastUV: 4.6 |
70°F Feels 60°F |
46% | 17.2 WNW | 29.62 | 48.3°F | 11% |
12 PM SunnyUV: 5.9 |
84°F Feels 71°F |
14% | 17.7 WNW | 29.62 | 30.5°F | 0% |
1 PM SunnyUV: 6.4 |
86°F Feels 73°F |
14% | 17.2 NW | 29.62 | 31.6°F | 0% |
2 PM Partly Cloudy UV: 5.8 |
87°F Feels 73°F |
14% | 17.9 NW | 29.62 | 32.5°F | 2% |
3 PM Partly CloudyUV: 4.4 |
87°F Feels 74°F |
16% | 16.8 NNW | 29.63 | 35.4°F | 3% |
4 PM Partly CloudyUV: 2.7 |
85°F Feels 74°F |
19% | 15.9 N | 29.64 | 38.6°F | 3% |
5 PM SunnyUV: 1.3 |
83°F Feels 70°F |
24% | 19.2 N | 29.67 | 41.6°F | 1% |
6 PM SunnyUV: 0.4 |
78°F Feels 65°F |
28% | 20.8 N | 29.71 | 42.6°F | 1% |
7 PM OvercastUV: 0 |
72°F Feels 59°F |
33% | 20.6 N | 29.76 | 41.5°F | 9% |
8 PM OvercastUV: 0 |
69°F Feels 56°F |
36% | 19.2 N | 29.83 | 41.1°F | 10% |
9 PM Scattered Showers UV: 0 |
65°F Feels 54°F |
40% | 15.9 N | 29.9 | 40.4°F | 11% |
10 PM Scattered ShowersUV: 0 |
63°F Feels 55°F |
44% | 11 N | 29.92 | 41.1°F | 11% |
11 PM OvercastUV: 0 |
63°F Feels 56°F |
45% | 7.8 N | 29.95 | 41.1°F | 11% |
Sat, Sep 12th 2026
Skies will shift from Overcast conditions to Clear conditions as the day goes on. Warming trend from 53°F to 72°. Breezy wind, shifting from N to E at 8.8 mph, while humidity ranges from 34% to 69%, and an avg barometric pressure of 30.01 inHg.
| Sat, Sep 12th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Clear UV: 0 |
59°F Feels 51°F |
53% | 12.1 N | 29.99 | 42°F | 2% |
1 AM ClearUV: 0 |
56°F Feels 49°F |
64% | 9.8 N | 30.03 | 43.4°F | 4% |
2 AM ClearUV: 0 |
55°F Feels 51°F |
65% | 5.6 NNW | 30.03 | 43.2°F | 5% |
3 AM Partly Cloudy UV: 0 |
54°F Feels 51°F |
66% | 2.9 NW | 30.04 | 42.8°F | 9% |
4 AM Partly CloudyUV: 0 |
54°F Feels 51°F |
66% | 1.8 WNW | 30.05 | 42.3°F | 8% |
5 AM Partly CloudyUV: 0 |
53°F Feels 51°F |
65% | 1.1 W | 30.06 | 42.2°F | 8% |
6 AM Cloudy UV: 0 |
53°F Feels 50°F |
69% | 2 SW | 30.07 | 43.1°F | 13% |
7 AM Cloudy UV: 0 |
53°F Feels 51°F |
68% | 3.4 SSW | 30.08 | 42.9°F | 14% |
8 AM OvercastUV: 0.4 |
56°F Feels 53°F |
60% | 3.1 SSW | 30.08 | 42.1°F | 15% |
9 AM OvercastUV: 1.2 |
57°F Feels 54°F |
53% | 2.5 ENE | 30.08 | 40.7°F | 13% |
10 AM OvercastUV: 2.6 |
59°F Feels 55°F |
49% | 4.5 ENE | 30.08 | 40.2°F | 11% |
11 AM CloudyUV: 4 |
62°F Feels 56°F |
44% | 5.8 ENE | 30.06 | 39.7°F | 9% |
12 PM CloudyUV: 5.2 |
65°F Feels 59°F |
40% | 6.5 ENE | 30.03 | 39.9°F | 5% |
1 PM OvercastUV: 5.7 |
68°F Feels 62°F |
36% | 7.4 ENE | 30 | 40.5°F | 10% |
2 PM OvercastUV: 5.2 |
71°F Feels 64°F |
34% | 8.9 E | 29.97 | 41.1°F | 10% |
3 PM OvercastUV: 3.7 |
72°F Feels 64°F |
34% | 11 ESE | 29.95 | 41.7°F | 10% |
4 PM OvercastUV: 2.4 |
72°F Feels 63°F |
34% | 13 ESE | 29.94 | 41.8°F | 9% |
5 PM CloudyUV: 1.1 |
72°F Feels 61°F |
34% | 15.2 E | 29.92 | 41.4°F | 7% |
6 PM OvercastUV: 0.3 |
71°F Feels 60°F |
34% | 15.4 E | 29.91 | 41.3°F | 9% |
7 PM OvercastUV: 0 |
69°F Feels 58°F |
37% | 15.7 ESE | 29.91 | 41.1°F | 10% |
8 PM CloudyUV: 0 |
65°F Feels 55°F |
42% | 13.9 E | 29.95 | 40.9°F | 8% |
9 PM OvercastUV: 0 |
60°F Feels 48°F |
48% | 17.7 ENE | 29.99 | 40.6°F | 11% |
10 PM Scattered ShowersUV: 0 |
58°F Feels 47°F |
51% | 16.8 E | 30.01 | 40.2°F | 13% |
11 PM Light Rain Shower UV: 0 |
57°F Feels 46°F |
56% | 15.9 E | 30 | 41.6°F | 24% Rain est. 0.01in |
Sun, Sep 13th 2026
Scattered showers expected later. Temps range from 54° to 56°. Windy conditions from the E at 14.8 mph, as humidity ranges 62% to 76%, and an avg barometric pressure of 30 inHg.
| Sun, Sep 13th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Scattered ShowersUV: 0 |
56°F Feels 48°F |
62% | 13.9 E | 30.02 | 43.4°F | 20% |
1 AM Scattered ShowersUV: 0 |
56°F Feels 47°F |
66% | 14.3 E | 30.01 | 44.4°F | 27% Rain est. 0.01in |
2 AM Scattered ShowersUV: 0 |
55°F Feels 47°F |
69% | 15.4 E | 30 | 45.1°F | 29% Rain est. 0.01in |
3 AM Light Rain ShowerUV: 0 |
55°F Feels 47°F |
73% | 15.2 E | 29.99 | 45.9°F | 33% Rain est. 0.01in |
4 AM Light Rain ShowerUV: 0 |
54°F Feels 47°F |
76% | 15.4 E | 29.99 | 46.9°F | 38% Rain est. 0.01in |
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|
64°F |
29.58 inHg.
Barometer 18%
Humidity W 5.8mph Wind |
| Overcast | ||
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