Sioux Falls, SD Hourly Forecast
South Dakota, United States 🇺🇸
58°
Overcast
Feels like 54°
Updated 4 min ago
Sioux Falls temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 2 AM - around 64°
- Coolest hour: 9 AM - around 56°
- Highest rain chance: 1 AM (43%) - pack accordingly
- UV peak: 12 PM at index 5 - sun protection recommended
- Windiest: 11 AM at 14 mph
Sioux Falls hourly weather - Wednesday, September 16
In Sioux Falls, expect a high near 63°F (17°C) around 11 AM and a low of 56°F (13°C) near 9 AM; precipitation risk peaks at 39% around 11 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 3 AM | Overcast | 58° | 54° | 18% | 6 mph ESE | 70% | 0 | |
| 4 AM | Overcast | 58° | 54° | 19% | 6 mph ESE | 71% | 0 | |
| 5 AM | Overcast | 58° | 53° | 17% | 7 mph E | 67% | 0 | |
| 6 AM | Partly Cloudy | 57° | 52° | 7% | 7 mph ESE | 67% | 0 | |
| 7 AM | Partly Cloudy | 56° | 52° | 8% | 8 mph E | 69% | 0 | |
| 8 AM | Overcast | 58° | 54° | 17% | 6 mph E | 68% | 0 | |
| 9 AM | Overcast | 56° | 49° | 15% | 10 mph ESE | 60% | 1 | |
| 10 AM | Overcast | 59° | 51° | 11% | 12 mph ESE | 53% | 2 | |
| 11 AM | Overcast | 63° | 54° | 12% | 14 mph SE | 50% | 3 | |
| 12 PM | Overcast | 61° | 53° | 13% | 13 mph SE | 55% | 5 | |
| 1 PM | Overcast | 60° | 52° | 14% | 12 mph SE | 59% | 4 | |
| 2 PM | Patchy rain nearby | 60° | 53° | 17% | 10 mph SE | 62% | 2 | |
| 3 PM | Overcast | 59° | 52° | 15% | 10 mph SE | 63% | 1 | |
| 4 PM | Patchy rain nearby | 58° | 52° | 19% | 11 mph SE | 69% | 0 | |
| 5 PM | Overcast | 56° | 51° | 24% | 11 mph SE | 80% | 0 | |
| 6 PM | Overcast | 56° | 51° | 26% | 10 mph SE | 83% | 0 | |
| 7 PM | Patchy rain nearby | 56° | 52° | 27% | 9 mph SSE | 85% | 0 | |
| 8 PM | Overcast | 56° | 53° | 30% | 7 mph SSE | 90% | 0 | |
| 9 PM | Overcast | 56° | 54° | 32% | 6 mph SSE | 94% | 0 | |
| 10 PM | Mist | 58° | 56° | 38% | 6 mph SSE | 96% | 0 | |
| 11 PM | Mist | 60° | 60° | 39% | 6 mph SSE | 97% | 0 |
Sioux Falls hourly weather - Thursday, September 17
In Sioux Falls, expect a high near 71°F (22°C) around 4 PM and a low of 61°F (16°C) near 12 AM; precipitation risk peaks at 79% around 6 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Fog | 61° | 62° | 42% | 6 mph SSE | 97% | 0 | |
| 1 AM | Fog | 63° | 65° | 43% | 5 mph S | 99% | 0 | |
| 2 AM | Fog | 64° | 66° | 43% | 4 mph S | 98% | 0 | |
| 3 AM | Fog | 64° | 68° | 43% | 3 mph S | 99% | 0 | |
| 4 AM | Fog | 65° | 68° | 43% | 2 mph SSE | 99% | 0 | |
| 5 AM | Fog | 65° | 68° | 43% | 2 mph SE | 99% | 0 | |
| 6 AM | Fog | 65° | 68° | 43% | 3 mph SE | 99% | 0 | |
| 7 AM | Fog | 64° | 67° | 43% | 4 mph SE | 99% | 0 | |
| 8 AM | Mist | 62° | 63° | 38% | 5 mph E | 96% | 0 | |
| 9 AM | Overcast | 63° | 63° | 31% | 6 mph E | 93% | 1 | |
| 10 AM | Overcast | 65° | 64° | 29% | 9 mph E | 89% | 2 | |
| 11 AM | Patchy rain nearby | 69° | 68° | 30% | 9 mph ESE | 77% | 2 | |
| 12 PM | Light rain shower | 68° | 68° | 57% | 7 mph ESE | 81% | 3 | |
| 1 PM | Light rain shower | 67° | 70° | 71% | 4 mph E | 90% | 2 | |
| 2 PM | Light rain shower | 68° | 72° | 76% | 3 mph SE | 95% | 3 | |
| 3 PM | Patchy rain nearby | 68° | 68° | 38% | 9 mph E | 86% | 2 | |
| 4 PM | Light rain shower | 71° | 70° | 55% | 11 mph E | 78% | 1 | |
| 5 PM | Light rain shower | 66° | 65° | 58% | 10 mph E | 94% | 1 | |
| 6 PM | Light rain shower | 67° | 65° | 79% | 12 mph E | 91% | 0 | |
| 7 PM | Light rain shower | 66° | 64° | 66% | 11 mph E | 95% | 0 | |
| 8 PM | Light rain shower | 66° | 65° | 72% | 10 mph ENE | 96% | 0 | |
| 9 PM | Light rain shower | 64° | 60° | 73% | 14 mph ENE | 97% | 0 | |
| 10 PM | Light rain shower | 64° | 59° | 75% | 15 mph ENE | 97% | 0 | |
| 11 PM | Light rain shower | 64° | 60° | 76% | 15 mph E | 96% | 0 |
Sioux Falls hourly weather - Friday, September 18
In Sioux Falls, expect a high near 82°F (28°C) around 4 PM and a low of 63°F (17°C) near 11 PM; precipitation risk peaks at 79% around 2 AM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Light rain shower | 64° | 58° | 76% | 18 mph E | 97% | 0 | |
| 1 AM | Light rain shower | 64° | 62° | 77% | 12 mph E | 97% | 0 | |
| 2 AM | Light rain shower | 64° | 60° | 79% | 16 mph E | 98% | 0 | |
| 3 AM | Patchy rain nearby | 64° | 59° | 36% | 17 mph ESE | 98% | 0 | |
| 4 AM | Light rain shower | 64° | 60° | 65% | 16 mph ESE | 98% | 0 | |
| 5 AM | Overcast | 64° | 62° | 35% | 13 mph ESE | 98% | 0 | |
| 6 AM | Overcast | 64° | 63° | 34% | 11 mph E | 98% | 0 | |
| 7 AM | Light rain shower | 65° | 63° | 53% | 12 mph E | 99% | 0 | |
| 8 AM | Overcast | 64° | 62° | 34% | 12 mph ESE | 98% | 0 | |
| 9 AM | Patchy rain nearby | 65° | 64° | 45% | 11 mph ESE | 97% | 1 | |
| 10 AM | Patchy rain nearby | 66° | 65° | 33% | 10 mph ESE | 97% | 1 | |
| 11 AM | Patchy rain nearby | 68° | 68° | 24% | 10 mph ESE | 90% | 3 | |
| 12 PM | Patchy rain nearby | 73° | 74° | 22% | 8 mph ESE | 79% | 2 | |
| 1 PM | Patchy rain nearby | 77° | 79° | 14% | 6 mph ESE | 66% | 4 | |
| 2 PM | Sunny | 80° | 81° | 3% | 6 mph SSE | 58% | 6 | |
| 3 PM | Sunny | 81° | 82° | 3% | 5 mph S | 54% | 5 | |
| 4 PM | Sunny | 82° | 83° | 3% | 8 mph SW | 53% | 3 | |
| 5 PM | Sunny | 80° | 82° | 4% | 10 mph WSW | 57% | 2 | |
| 6 PM | Partly Cloudy | 76° | 74° | 9% | 13 mph W | 70% | 1 | |
| 7 PM | Sunny | 70° | 69° | 11% | 12 mph NNW | 84% | 0 | |
| 8 PM | Cloudy | 65° | 63° | 30% | 12 mph NNE | 98% | 0 | |
| 9 PM | Mist | 63° | 63° | 39% | 8 mph NE | 97% | 0 | |
| 10 PM | Fog | 63° | 66° | 51% | 2 mph ENE | 98% | 0 | |
| 11 PM | Fog | 63° | 66° | 49% | 1 mph N | 98% | 0 |
Quick answers for the hours ahead
What is the warmest hour in Sioux Falls today?
2 AM is forecast to be the warmest, at about 64°F (18°C) with fog.
Will it rain in Sioux Falls tonight?
A small chance: precipitation risk peaks at 39% around 11 PM.
When is the UV index highest in Sioux Falls today?
Around 12 PM, when it reaches 5. From UV 3 upward, sun protection is recommended.
Sioux Falls hour-by-hour: what to expect
Over the next 24 hours in Sioux Falls, temperatures range from 56°F (13°C) around 9 AM up to 64°F (18°C) near 2 AM - about 12°F (7°C) below the typical September high of 76°F (24°C).
Precipitation is a real possibility: the chance of rain peaks at 43% around 1 AM.
The “feels like” column blends humidity and wind into an apparent temperature - see how it works in our feels-like temperature guide. Planning further ahead? Check the Sioux Falls 14-day forecast or the monthly climate averages.