10-day forecast for Porcupine, SD: 63° to 101°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
101°
Best day: Monday, August 10
79° · 0.83 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 10101° / 65°0
Morning73°feels 72°
Afternoon97°feels 93°
Evening85°feels 82°
Overnight68°feels 67°
101 °
Porcupine, Monday, 10 August
Mostly clear. High 101°, low 65°.
Pressure29.74 inHg
Wind11.5 mph SE
Humidity24%
Visibility6.2 mi
Dew point52°
Tue, 11101° / 64°0
Morning70°feels 70°
Afternoon98°feels 94°
Evening88°feels 86°
Overnight74°feels 73°
101 °
Porcupine, Tuesday, 11 August
Partly cloudy. High 101°, low 64°.
Pressure29.77 inHg
Wind8.2 mph NE
Humidity30%
Visibility6.2 mi
Dew point55°
Wed, 12100° / 68°0.17
Morning77°feels 77°
Afternoon99°feels 96°
Evening79°feels 79°
Overnight74°feels 73°
100 °
Porcupine, Wednesday, 12 August
Light rain. High 100°, low 68°.
Pressure29.74 inHg
Wind13.7 mph SE
Humidity24%
Visibility6.2 mi
Dew point53°
Thu, 1377° / 64°0.05
Morning65°feels 65°
Afternoon70°feels 70°
Evening76°feels 75°
Overnight65°feels 65°
77 °
Porcupine, Thursday, 13 August
Light rain. High 77°, low 64°.
Pressure29.94 inHg
Wind21.4 mph E
Humidity82%
Visibility—
Dew point62°
Fri, 1479° / 63°0.83
Morning66°feels 66°
Afternoon73°feels 74°
Evening77°feels 77°
Overnight67°feels 68°
79 °
Porcupine, Friday, 14 August
Heavy rain. High 79°, low 63°.
Pressure29.91 inHg
Wind15 mph SE
Humidity72%
Visibility—
Dew point61°
Sat, 1582° / 67°0.14
Morning70°feels 70°
Afternoon77°feels 77°
Evening81°feels 81°
Overnight73°feels 73°
82 °
Porcupine, Saturday, 15 August
Light rain. High 82°, low 67°.
Pressure30.06 inHg
Wind8.2 mph NE
Humidity65%
Visibility—
Dew point62°
Sun, 1686° / 65°0.26
Morning73°feels 73°
Afternoon84°feels 85°
Evening80°feels 81°
Overnight66°feels 66°
86 °
Porcupine, Sunday, 16 August
Rain. High 86°, low 65°.
Pressure30.12 inHg
Wind23.5 mph N
Humidity50%
Visibility—
Dew point61°
Mon, 1797° / 64°0.07
Morning74°feels 74°
Afternoon91°feels 90°
Evening92°feels 90°
Overnight75°feels 75°
97 °
Porcupine, Monday, 17 August
Light rain. High 97°, low 64°.
Pressure29.83 inHg
Wind17.8 mph NW
Humidity35%
Visibility—
Dew point56°
Tue, 1891° / 72°0
Morning78°feels 76°
Afternoon90°feels 87°
Evening85°feels 82°
Overnight76°feels 75°
91 °
Porcupine, Tuesday, 18 August
Mostly clear. High 91°, low 72°.
Pressure29.88 inHg
Wind15.9 mph N
Humidity22%
Visibility—
Dew point45°
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 Porcupine, 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.