10-day forecast for Stephan, SD: 57° to 101°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
100°
Best day: Sunday, August 16
101° · 0.97 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0991° / 63°0
Morning67°feels 66°
Afternoon87°feels 85°
Evening86°feels 84°
Overnight71°feels 71°
91 °
Stephan, Sunday, 9 August
Mostly clear. High 91°, low 63°.
Pressure29.80 inHg
Wind18.1 mph NE
Humidity47%
Visibility6.2 mi
Dew point62°
Mon, 10101° / 65°0.97
Morning72°feels 72°
Afternoon96°feels 94°
Evening87°feels 86°
Overnight70°feels 69°
101 °
Stephan, Monday, 10 August
Heavy rain. High 101°, low 65°.
Pressure29.80 inHg
Wind7 mph E
Humidity34%
Visibility6.2 mi
Dew point57°
Tue, 1191° / 66°0
Morning68°feels 68°
Afternoon88°feels 86°
Evening85°feels 84°
Overnight69°feels 70°
91 °
Stephan, Tuesday, 11 August
Partly cloudy. High 91°, low 66°.
Pressure29.85 inHg
Wind10.4 mph NE
Humidity43%
Visibility6.2 mi
Dew point58°
Wed, 1294° / 70°0.08
Morning73°feels 73°
Afternoon91°feels 91°
Evening84°feels 84°
Overnight73°feels 73°
94 °
Stephan, Wednesday, 12 August
Light rain. High 94°, low 70°.
Pressure29.83 inHg
Wind7.2 mph SE
Humidity43%
Visibility6.2 mi
Dew point62°
Thu, 1383° / 61°0.02
Morning65°feels 65°
Afternoon78°feels 78°
Evening80°feels 79°
Overnight69°feels 67°
83 °
Stephan, Thursday, 13 August
Light rain. High 83°, low 61°.
Pressure30.06 inHg
Wind12.9 mph NE
Humidity38%
Visibility—
Dew point48°
Fri, 1489° / 62°0
Morning69°feels 68°
Afternoon85°feels 85°
Evening87°feels 85°
Overnight76°feels 75°
89 °
Stephan, Friday, 14 August
Mostly clear. High 89°, low 62°.
Pressure30.06 inHg
Wind17 mph S
Humidity42%
Visibility—
Dew point56°
Sat, 1594° / 69°0
Morning74°feels 73°
Afternoon89°feels 88°
Evening92°feels 92°
Overnight79°feels 80°
94 °
Stephan, Saturday, 15 August
Overcast. High 94°, low 69°.
Pressure29.97 inHg
Wind15.7 mph S
Humidity40%
Visibility—
Dew point58°
Sun, 16100° / 71°0.01
Morning78°feels 78°
Afternoon95°feels 96°
Evening93°feels 94°
Overnight72°feels 73°
100 °
Stephan, Sunday, 16 August
Light rain. High 100°, low 71°.
Pressure29.88 inHg
Wind16.1 mph NE
Humidity34%
Visibility—
Dew point59°
Mon, 1792° / 67°0.02
Morning73°feels 73°
Afternoon87°feels 86°
Evening91°feels 89°
Overnight78°feels 78°
92 °
Stephan, Monday, 17 August
Light rain. High 92°, low 67°.
Pressure30.00 inHg
Wind10.6 mph SE
Humidity40%
Visibility—
Dew point56°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Stephan, SD around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.