10-day forecast for Harrison, SD: 24° to 81°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
81°
Best day: Sunday, October 11
55° · 0.44 in
Worst day: Thursday, October 15
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1269° / 51°0
Morning52°feels 51°
Afternoon68°feels 67°
Evening62°feels 61°
Overnight55°feels 54°
69 °
Harrison, Monday, 12 October
Clear. High 69°, low 51°.
Pressure29.68 inHg
Wind11.1 mph NW
Humidity60%
Visibility6.2 mi
Dew point52°
Tue, 1358° / 48°0.01
Morning48°feels 44°
Afternoon55°feels 53°
Evening54°feels 51°
Overnight51°feels 50°
58 °
Harrison, Tuesday, 13 October
Light rain. High 58°, low 48°.
Pressure30.03 inHg
Wind8.1 mph N
Humidity59%
Visibility6.2 mi
Dew point39°
Wed, 1462° / 44°0.01
Morning43°feels 42°
Afternoon59°feels 57°
Evening57°feels 55°
Overnight48°feels 45°
62 °
Harrison, Wednesday, 14 October
Light rain. High 62°, low 44°.
Pressure30.24 inHg
Wind5.7 mph NE
Humidity54%
Visibility6.2 mi
Dew point40°
Thu, 1555° / 50°0.44
Morning51°feels 50°
Afternoon53°feels 52°
Evening54°feels 52°
Overnight51°feels 50°
55 °
Harrison, Thursday, 15 October
Rain. High 55°, low 50°.
Pressure30.27 inHg
Wind10.8 mph N
Humidity77%
Visibility—
Dew point46°
Fri, 1655° / 40°0
Morning44°feels 39°
Afternoon51°feels 48°
Evening46°feels 42°
Overnight40°feels 33°
55 °
Harrison, Friday, 16 October
Clear. High 55°, low 40°.
Pressure30.71 inHg
Wind16.1 mph N
Humidity48%
Visibility—
Dew point31°
Sat, 1745° / 24°0
Morning29°feels 23°
Afternoon40°feels 35°
Evening38°feels 31°
Overnight34°feels 26°
45 °
Harrison, Saturday, 17 October
Partly cloudy. High 45°, low 24°.
Pressure30.62 inHg
Wind14.7 mph SE
Humidity22%
Visibility—
Dew point3°
Sun, 1868° / 36°0
Morning44°feels 36°
Afternoon58°feels 55°
Evening56°feels 53°
Overnight49°feels 45°
68 °
Harrison, Sunday, 18 October
Overcast. High 68°, low 36°.
Pressure30.03 inHg
Wind19.7 mph S
Humidity28%
Visibility—
Dew point23°
Mon, 1974° / 50°0
Morning56°feels 55°
Afternoon69°feels 67°
Evening61°feels 59°
Overnight55°feels 54°
74 °
Harrison, Monday, 19 October
Mostly clear. High 74°, low 50°.
Pressure29.97 inHg
Wind11.3 mph SE
Humidity28%
Visibility—
Dew point33°
Tue, 2077° / 51°0
Morning58°feels 56°
Afternoon74°feels 72°
Evening62°feels 60°
Overnight56°feels 54°
77 °
Harrison, Tuesday, 20 October
Mostly clear. High 77°, low 51°.
Pressure29.74 inHg
Wind13.9 mph S
Humidity23%
Visibility—
Dew point32°
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 Harrison, 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.