Current weather conditions and 15 day weather forecast for Lyon, 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.
| 09 August 2026 Sunday 22 ° C / 71.6°F ![]() Sunny |
Feels Like : 23.2 ° C / 73.8°F Humidity : % 89 Pressure : 1009 mb Wind Speed : 13.3 kmph / 8.3 miles from NNE ![]() Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 09 August 2026 Sunday | Sunny |
17.4 ° C (63.3°F) |
27.5 ° C (81.5°F) |
22.5 ° C (72.5°F) |
% 79 | 10% | 5.1 | Sunrise:06:33 AM Sunset: 08:49 PM |
Moonrise:02:00 AM Moonset: 06:46 PM Moon Phase ( Waning Crescent ) |
|
| 10 August 2026 Monday | Sunny |
17.9 ° C (64.2°F) |
37.7 ° C (99.9°F) |
27.3 ° C (81.2°F) |
% 55 | 36% | 5.7 | Sunrise:06:34 AM Sunset: 08:47 PM |
Moonrise:03:11 AM Moonset: 07:36 PM Moon Phase ( New Moon ) |
|
| 11 August 2026 Tuesday | Sunny |
18.6 ° C (65.5°F) |
34.1 ° C (93.4°F) |
26.3 ° C (79.3°F) |
% 57 | 17% | 5.9 | Sunrise:06:35 AM Sunset: 08:46 PM |
Moonrise:04:33 AM Moonset: 08:15 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday | Sunny |
19.2 ° C (66.6°F) |
34.1 ° C (93.4°F) |
26.5 ° C (79.7°F) |
% 59 | 57% | 5.5 | Sunrise:06:36 AM Sunset: 08:45 PM |
Moonrise:05:59 AM Moonset: 08:46 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday | Patchy rain nearby |
17 ° C (62.6°F) |
26.4 ° C (79.5°F) |
21.5 ° C (70.7°F) |
% 77 | 80% | 6 | Sunrise:06:37 AM Sunset: 08:43 PM |
Moonrise:07:24 AM Moonset: 09:11 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Cloudy |
16.7 ° C (62°F) |
20.4 ° C (68.8°F) |
18.5 ° C (65.2°F) |
% 90 | 89% | 5 | Sunrise:06:39 AM Sunset: 08:42 PM |
Moonrise:08:45 AM Moonset: 09:34 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Patchy rain nearby |
18.7 ° C (65.7°F) |
27.5 ° C (81.5°F) |
21.8 ° C (71.2°F) |
% 84 | 58% | 6 | Sunrise:06:40 AM Sunset: 08:40 PM |
Moonrise:10:04 AM Moonset: 09:55 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
18.2 ° C (64.8°F) |
29.4 ° C (84.9°F) |
23.3 ° C (74°F) |
% 68 | 57% | 7 | Sunrise:06:41 AM Sunset: 08:39 PM |
Moonrise:11:21 AM Moonset: 10:17 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Partly Cloudy |
18.4 ° C (65.2°F) |
30.3 ° C (86.5°F) |
24.1 ° C (75.3°F) |
% 70 | 58% | 8 | Sunrise:06:42 AM Sunset: 08:37 PM |
Moonrise:12:36 PM Moonset: 10:41 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Sunny |
19.1 ° C (66.5°F) |
34.9 ° C (94.7°F) |
25.7 ° C (78.3°F) |
% 63 | 36% | 8 | Sunrise:06:43 AM Sunset: 08:35 PM |
Moonrise:01:50 PM Moonset: 11:09 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Sunny |
17.2 ° C (63°F) |
28 ° C (82.4°F) |
22.6 ° C (72.7°F) |
% 53 | 3% | 7 | Sunrise:06:44 AM Sunset: 08:34 PM |
Moonrise:03:01 PM Moonset: 11:43 PM Moon Phase ( First Quarter ) |
|
| 20 August 2026 Thursday | Sunny |
17.8 ° C (64.1°F) |
33.6 ° C (92.5°F) |
25.4 ° C (77.8°F) |
% 52 | 2% | 8 | Sunrise:06:45 AM Sunset: 08:32 PM |
Moonrise:04:07 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Sunny |
21.3 ° C (70.3°F) |
34.8 ° C (94.6°F) |
27.2 ° C (81°F) |
% 38 | 1% | 8 | Sunrise:06:46 AM Sunset: 08:31 PM |
Moonrise:05:06 PM Moonset: 12:24 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday | Sunny |
17.9 ° C (64.2°F) |
29.9 ° C (85.8°F) |
24.1 ° C (75.3°F) |
% 41 | 1% | 7 | Sunrise:06:48 AM Sunset: 08:29 PM |
Moonrise:05:56 PM Moonset: 01:14 AM Moon Phase ( Waxing Gibbous ) |
|