Stephan, SD Weather Forecast | 5 Day
Updated: Sun Sep 20th 2026 11:45 PM CDT
Ask About Weather
Test our Weather Chatbot. It provides up to 10 days of forecast information!
Scattered Showers
Sun 9-20-26
- HI: 59°F
- LO: 52°F
- Rainfall: 91% | est. 0.66in
- Snowfall: 0%
- Wind
11.4 mph - Humidity
92% avg. - UV Index
0.9 - Air Quality
- Sunrise
07:22 AM - Sunset
07:39 PM - Moonrise
05:13 PM - Moonset
01:04 AM - Moon Phase
Waxing Gibbous
Scattered Showers
Weather Tomorrow, Mon 9-21-26
Scattered Showers with a high of 52°F and a low of 46°F. It will likey rain, having a 83% chance of a downpour with an estimated 0.1in. Wind will be moderate, blowing around 12mph on average and gusts of 19.3mph at 10 AM. High humidity with average of 92% is anticipated, the maximum being 96% at 2 AM and 87% being its lowest at 3 PM. Barometric pressure is its highest of 30.24inHg at 10 PM, a lowest point of 30.14inHg at 12 AM with an avg 30.18inHg.
- HI: 52°F
- LO: 46°F
- Rainfall: 83% | est. 0.1in
- Snowfall: 0%
- Wind
11.4 mph - Humidity
92% avg. - UV Index
0.7 - Air QualityGood
- Sunrise
07:23 AM - Sunset
07:37 PM - Moonrise
05:41 PM - Moonset
02:08 AM - Moon Phase
Waxing Gibbous
Overcast
Tue 9-22-26
Overcast with a high of 56°F and a low of 44°F. There's a moderate 36% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 16mph on average and gusts of 30.2mph at 11 PM. High humidity with average of 86% is anticipated, the maximum being 97% at 4 AM and 70% being its lowest at 3 PM. Barometric pressure is its highest of 30.25inHg at 1 AM, a lowest point of 30.13inHg at 5 PM with an avg 30.2inHg.
- HI: 56°F
- LO: 44°F
- Rainfall: 36% | est. 0.01in
- Snowfall: 0%
- Wind
15.4 mph - Humidity
86% avg. - UV Index
3.3 - Air QualityGood
- Sunrise
07:25 AM - Sunset
07:35 PM - Moonrise
06:03 PM - Moonset
03:14 AM - Moon Phase
Waxing Gibbous
Overcast
Wed 9-23-26
Overcast with a high of 69°F and a low of 50°F. Rainfall expected to have a 71% chance with an estimated 0.06in. Winds will be strong at speeds peaking at 23mph and gusts of 36.7mph at 7 AM. High humidity with average of 83% is anticipated, the maximum being 94% at 6 AM and 67% being its lowest at 1 PM. Barometric pressure is its highest of 30.14inHg at 12 AM, a lowest point of 30inHg at 6 PM with an avg 30.08inHg.
- HI: 69°F
- LO: 50°F
- Rainfall: 71% | est. 0.06in
- Snowfall: 0%
- Wind
22.1 mph - Humidity
83% avg. - UV Index
3.7 - Air QualityGood
- Sunrise
07:26 AM - Sunset
07:34 PM - Moonrise
06:23 PM - Moonset
04:19 AM - Moon Phase
Waxing Gibbous
Overcast
Thu 9-24-26
Overcast with a high of 67°F and a low of 58°F. There's a moderate 40% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 17mph on average and gusts of 35.1mph at 12 AM. High humidity with average of 86% is anticipated, the maximum being 93% at 5 AM and 74% being its lowest at 3 PM. Barometric pressure is its highest of 30.11inHg at 9 PM, a lowest point of 30.06inHg at 4 PM with an avg 30.08inHg.
- HI: 67°F
- LO: 58°F
- Rainfall: 40% | est. 0.01in
- Snowfall: 0%
- Wind
16.3 mph - Humidity
86% avg. - UV Index
2.6 - Air QualityGood
- Sunrise
07:27 AM - Sunset
07:32 PM - Moonrise
06:41 PM - Moonset
05:23 AM - Moon Phase
Full Moon
Scattered Showers
Fri 9-25-26
Scattered Showers with a high of 58°F and a low of 53°F. Rainfall expected to have a 56% chance with an estimated 0.02in. Wind will be moderate, blowing around 14mph on average and gusts of 22.8mph at 2 AM. High humidity with average of 94% is anticipated, the maximum being 96% at 11 PM and 91% being its lowest at 12 AM. Barometric pressure is its highest of 30.1inHg at 12 AM, a lowest point of 29.9inHg at 11 PM with an avg 30inHg.
- HI: 58°F
- LO: 53°F
- Rainfall: 56% | est. 0.02in
- Snowfall: 0%
- Wind
13.2 mph - Humidity
94% avg. - UV Index
3 - Air QualityGood
- Sunrise
07:28 AM - Sunset
07:30 PM - Moonrise
06:58 PM - Moonset
06:28 AM - Moon Phase
Full Moon
This 5-Day weather forecast is valid for ZIP code 57346, accurately covering the area of Stephan, SD.
Currently
 |
52°F |
30.13 inHg.
Barometer 95%
Humidity E 14.4 mph Wind |
| Light Drizzle | ||
National Outlook
Heavy Rain and Storms to Hit the Midwest, Ohio Valley, and Mid-Atlantic - 09-20 to 09-22
Sun Sep 20th 2026, 8:18am PDT
Read
Floods in the Southern High Plains and Storms in the East 09-23 to 09-27
Extended Forecast
Sun Sep 20th 2026, 8:19am PDT
Read
Sun Sep 20th 2026, 8:19am PDT
5 Day Forecast Nearby
More Local Information
Bookmark and Share
