Cornwall Weather Forecast 15 Days, Weather in Cornwall Today
Current weather conditions and 15 day weather forecast for Cornwall, 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 Cornwall
| 09 February 2026 Monday 1.7 ° C / 35.1°F  Clear |
Feels Like : -2 ° C / 28.4°F Humidity : % 85 Pressure : 1015 mb Wind Speed : 13.3 kmph / 8.3 miles from S  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Cornwall, SD, USA
Weather Forecast for next 15 Days for Cornwall 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 Cornwall, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 08 February 2026 Sunday |  Mist |
-2 ° C (28.4°F) |
5.3 ° C (41.5°F) |
0.9 ° C (33.6°F) |
% 92 | 0% | 0.4 | Sunrise:07:44 AM Sunset: 05:52 PM |
Moonrise:12:41 AM Moonset: 10:22 AM Moon Phase ( Waning Gibbous ) |
|
| 09 February 2026 Monday |  Partly Cloudy |
-0.2 ° C (31.6°F) |
7.2 ° C (45°F) |
2 ° C (35.6°F) |
% 88 | 0% | 0.3 | Sunrise:07:42 AM Sunset: 05:53 PM |
Moonrise:01:48 AM Moonset: 10:47 AM Moon Phase ( Last Quarter ) |
|
| 10 February 2026 Tuesday | Mist |
-1.8 ° C (28.8°F) |
8.2 ° C (46.8°F) |
2.2 ° C (35.9°F) |
% 81 | 0% | 0.4 | Sunrise:07:41 AM Sunset: 05:55 PM |
Moonrise:02:54 AM Moonset: 11:20 AM Moon Phase ( Waning Crescent ) |
|
| 11 February 2026 Wednesday | Partly Cloudy |
-1.6 ° C (29.1°F) |
6.7 ° C (44.1°F) |
1.7 ° C (35.1°F) |
% 77 | 0% | 0.4 | Sunrise:07:39 AM Sunset: 05:56 PM |
Moonrise:03:57 AM Moonset: 11:59 AM Moon Phase ( Waning Crescent ) |
|
| 12 February 2026 Thursday | Partly Cloudy |
1.6 ° C (34.9°F) |
9.6 ° C (49.3°F) |
5.1 ° C (41.1°F) |
% 65 | 0% | 0.4 | Sunrise:07:38 AM Sunset: 05:58 PM |
Moonrise:04:54 AM Moonset: 12:49 PM Moon Phase ( Waning Crescent ) |
|
| 13 February 2026 Friday |  Overcast |
-0.7 ° C (30.7°F) |
4.9 ° C (40.7°F) |
1.3 ° C (34.4°F) |
% 87 | 0% | 0 | Sunrise:07:37 AM Sunset: 05:59 PM |
Moonrise:05:43 AM Moonset: 01:49 PM Moon Phase ( Waning Crescent ) |
|
| 14 February 2026 Saturday | Partly Cloudy |
-0.1 ° C (31.8°F) |
10.4 ° C (50.7°F) |
4.4 ° C (39.9°F) |
% 78 | 0% | 2 | Sunrise:07:35 AM Sunset: 06:00 PM |
Moonrise:06:22 AM Moonset: 02:55 PM Moon Phase ( Waning Crescent ) |
|
| 15 February 2026 Sunday | Sunny |
2.3 ° C (36.1°F) |
16.2 ° C (61.1°F) |
8.2 ° C (46.7°F) |
% 65 | 0% | 3 | Sunrise:07:34 AM Sunset: 06:02 PM |
Moonrise:06:54 AM Moonset: 04:06 PM Moon Phase ( Waning Crescent ) |
|
| 16 February 2026 Monday | Sunny |
8.3 ° C (47°F) |
16.4 ° C (61.5°F) |
11.6 ° C (52.9°F) |
% 45 | 0% | 4 | Sunrise:07:32 AM Sunset: 06:03 PM |
Moonrise:07:21 AM Moonset: 05:19 PM Moon Phase ( Waning Crescent ) |
|
| 17 February 2026 Tuesday | Sunny |
1.6 ° C (34.9°F) |
6.7 ° C (44°F) |
4 ° C (39.2°F) |
% 49 | 0% | 2 | Sunrise:07:31 AM Sunset: 06:04 PM |
Moonrise:07:43 AM Moonset: 06:32 PM Moon Phase ( New Moon ) |
|
| 18 February 2026 Wednesday | Partly Cloudy |
1 ° C (33.7°F) |
10.8 ° C (51.5°F) |
4.7 ° C (40.4°F) |
% 57 | 0% | 2 | Sunrise:07:29 AM Sunset: 06:06 PM |
Moonrise:08:02 AM Moonset: 07:45 PM Moon Phase ( Waxing Crescent ) |
|
| 19 February 2026 Thursday |  Blizzard |
-2.8 ° C (27°F) |
1.4 ° C (34.6°F) |
-0.1 ° C (31.8°F) |
% 87 | 76% | 1 | Sunrise:07:27 AM Sunset: 06:07 PM |
Moonrise:08:21 AM Moonset: 08:59 PM Moon Phase ( Waxing Crescent ) |
|
| 20 February 2026 Friday |  Moderate or heavy snow showers |
-11.1 ° C (12°F) |
-8 ° C (17.6°F) |
-8.7 ° C (16.4°F) |
% 83 | 81% | 1 | Sunrise:07:26 AM Sunset: 06:09 PM |
Moonrise:08:40 AM Moonset: 10:14 PM Moon Phase ( Waxing Crescent ) |
|
| 21 February 2026 Saturday | Mist |
-18.9 ° C (-2.1°F) |
-12.1 ° C (10.2°F) |
-15.5 ° C (4.1°F) |
% 92 | 0% | 1 | Sunrise:07:24 AM Sunset: 06:10 PM |
Moonrise:09:01 AM Moonset: 11:33 PM Moon Phase ( Waxing Crescent ) |
|
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