Current weather conditions and 15 day weather forecast for Sinai, 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.
| 24 September 2026 Thursday 14.6 ° C / 58.3°F ![]() Light rain shower |
Feels Like : 10.5 ° C / 50.9°F Humidity : % 87 Pressure : 1022 mb Wind Speed : 25.2 kmph / 15.7 miles from SSE ![]() Visibility : 10 km Precipitation (rainfall) : 0.53 mm Cloud (%) : 100 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 23 September 2026 Wednesday | Overcast |
8.4 ° C (47.1°F) |
17.7 ° C (63.9°F) |
12.9 ° C (55.2°F) |
% 83 | 64% | 4.1 | Sunrise:07:16 AM Sunset: 07:24 PM |
Moonrise:06:13 PM Moonset: 04:09 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 September 2026 Thursday | Light rain shower |
11.5 ° C (52.7°F) |
13.7 ° C (56.7°F) |
12.3 ° C (54.1°F) |
% 95 | 90% | 1.1 | Sunrise:07:17 AM Sunset: 07:22 PM |
Moonrise:06:31 PM Moonset: 05:13 AM Moon Phase ( Full Moon ) |
|
| 25 September 2026 Friday | Patchy rain nearby |
11.6 ° C (52.8°F) |
13.8 ° C (56.9°F) |
12.5 ° C (54.4°F) |
% 96 | 77% | 1 | Sunrise:07:18 AM Sunset: 07:20 PM |
Moonrise:06:48 PM Moonset: 06:18 AM Moon Phase ( Full Moon ) |
|
| 26 September 2026 Saturday | Patchy rain nearby |
12.1 ° C (53.7°F) |
15 ° C (59°F) |
13.1 ° C (55.6°F) |
% 98 | 85% | 0.9 | Sunrise:07:20 AM Sunset: 07:18 PM |
Moonrise:07:06 PM Moonset: 07:23 AM Moon Phase ( Full Moon ) |
|
| 27 September 2026 Sunday | Patchy rain nearby |
14.2 ° C (57.6°F) |
19.5 ° C (67.1°F) |
16 ° C (60.8°F) |
% 91 | 49% | 2.6 | Sunrise:07:21 AM Sunset: 07:17 PM |
Moonrise:07:25 PM Moonset: 08:29 AM Moon Phase ( Waning Gibbous ) |
|
| 28 September 2026 Monday | Overcast |
13.9 ° C (57°F) |
22.5 ° C (72.5°F) |
17.3 ° C (63.2°F) |
% 84 | 81% | 5 | Sunrise:07:22 AM Sunset: 07:15 PM |
Moonrise:07:47 PM Moonset: 09:38 AM Moon Phase ( Waning Gibbous ) |
|
| 29 September 2026 Tuesday | Patchy rain nearby |
8.5 ° C (47.3°F) |
16 ° C (60.8°F) |
11.3 ° C (52.4°F) |
% 82 | 66% | 3 | Sunrise:07:23 AM Sunset: 07:13 PM |
Moonrise:08:15 PM Moonset: 10:50 AM Moon Phase ( Waning Gibbous ) |
|
| 30 September 2026 Wednesday | Sunny |
9.3 ° C (48.7°F) |
16.9 ° C (62.4°F) |
12.8 ° C (55.1°F) |
% 62 | 4% | 5 | Sunrise:07:24 AM Sunset: 07:11 PM |
Moonrise:08:50 PM Moonset: 12:03 PM Moon Phase ( Waning Gibbous ) |
|
| 01 October 2026 Thursday | Sunny |
12.2 ° C (54°F) |
18.5 ° C (65.3°F) |
15.3 ° C (59.5°F) |
% 57 | 4% | 5 | Sunrise:07:26 AM Sunset: 07:09 PM |
Moonrise:09:35 PM Moonset: 01:14 PM Moon Phase ( Last Quarter ) |
|
| 02 October 2026 Friday | Overcast |
6.5 ° C (43.7°F) |
18.2 ° C (64.7°F) |
13.8 ° C (56.9°F) |
% 60 | 10% | 4 | Sunrise:07:27 AM Sunset: 07:07 PM |
Moonrise:10:33 PM Moonset: 02:20 PM Moon Phase ( Last Quarter ) |
|
| 03 October 2026 Saturday | Overcast |
4.2 ° C (39.6°F) |
6.9 ° C (44.5°F) |
5.4 ° C (41.8°F) |
% 59 | 44% | 2 | Sunrise:07:28 AM Sunset: 07:05 PM |
Moonrise:11:43 PM Moonset: 03:16 PM Moon Phase ( Last Quarter ) |
|
| 04 October 2026 Sunday | Sunny |
2.9 ° C (37.3°F) |
9 ° C (48.2°F) |
5.6 ° C (42.1°F) |
% 60 | 5% | 3 | Sunrise:07:29 AM Sunset: 07:04 PM |
Moonrise:Does not rise today Moonset: 04:00 PM Moon Phase ( Last Quarter ) |
|
| 05 October 2026 Monday | Sunny |
4.8 ° C (40.6°F) |
13.8 ° C (56.8°F) |
9.1 ° C (48.3°F) |
% 51 | 3% | 4 | Sunrise:07:30 AM Sunset: 07:02 PM |
Moonrise:01:00 AM Moonset: 04:35 PM Moon Phase ( Waning Crescent ) |
|
| 06 October 2026 Tuesday | Sunny |
8.4 ° C (47.1°F) |
16.6 ° C (61.8°F) |
12.4 ° C (54.4°F) |
% 54 | 4% | 5 | Sunrise:07:32 AM Sunset: 07:00 PM |
Moonrise:02:21 AM Moonset: 05:04 PM Moon Phase ( Waning Crescent ) |
|