10-day forecast for Opal, SD: 33° to 76°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Wednesday, October 21
63° · 1.5 in
Worst day: Friday, October 23
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 1653° / 33°0
Morning34°feels 27°
Afternoon51°feels 48°
Evening44°feels 38°
Overnight40°feels 31°
53 °
Opal, Friday, 16 October
Clear. High 53°, low 33°.
Pressure30.71 inHg
Wind5.8 mph SW
Humidity54%
Visibility6.2 mi
Dew point27°
Sat, 1772° / 36°0
Morning39°feels 36°
Afternoon71°feels 69°
Evening53°feels 51°
Overnight40°feels 37°
72 °
Opal, Saturday, 17 October
Clear. High 72°, low 36°.
Pressure30.06 inHg
Wind2.8 mph SW
Humidity28%
Visibility6.2 mi
Dew point30°
Sun, 1865° / 49°0
Morning52°feels 49°
Afternoon65°feels 63°
Evening53°feels 50°
Overnight49°feels 46°
65 °
Opal, Sunday, 18 October
Clear. High 65°, low 49°.
Pressure30.12 inHg
Wind10.7 mph N
Humidity35%
Visibility6.2 mi
Dew point36°
Mon, 1961° / 41°0
Morning46°feels 43°
Afternoon57°feels 55°
Evening54°feels 52°
Overnight45°feels 42°
61 °
Opal, Monday, 19 October
Clear. High 61°, low 41°.
Pressure30.12 inHg
Wind10 mph SE
Humidity55%
Visibility—
Dew point39°
Tue, 2068° / 44°0
Morning49°feels 46°
Afternoon62°feels 60°
Evening61°feels 60°
Overnight55°feels 52°
68 °
Opal, Tuesday, 20 October
Clear. High 68°, low 44°.
Pressure30.00 inHg
Wind14.5 mph SE
Humidity57%
Visibility—
Dew point44°
Wed, 2173° / 53°0
Morning57°feels 57°
Afternoon68°feels 68°
Evening65°feels 65°
Overnight59°feels 58°
73 °
Opal, Wednesday, 21 October
Mostly clear. High 73°, low 53°.
Pressure29.83 inHg
Wind15.8 mph S
Humidity63%
Visibility—
Dew point53°
Thu, 2276° / 57°0.03
Morning62°feels 61°
Afternoon72°feels 72°
Evening69°feels 68°
Overnight65°feels 64°
76 °
Opal, Thursday, 22 October
Light rain. High 76°, low 57°.
Pressure29.65 inHg
Wind16.1 mph S
Humidity55%
Visibility—
Dew point54°
Fri, 2363° / 41°1.5
Morning53°feels 49°
Afternoon46°feels 37°
Evening45°feels 35°
Overnight44°feels 35°
63 °
Opal, Friday, 23 October
Heavy rain. High 63°, low 41°.
Pressure29.65 inHg
Wind30.7 mph NW
Humidity81%
Visibility—
Dew point42°
Sat, 2445° / 38°0.17
Morning40°feels 28°
Afternoon43°feels 32°
Evening42°feels 32°
Overnight40°feels 30°
45 °
Opal, Saturday, 24 October
Snow. High 45°, low 38°.
Pressure30.18 inHg
Wind34.5 mph NW
Humidity48%
Visibility—
Dew point24°
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 Opal, 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.