10-day forecast for Onaka, SD: 55° to 96°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
93°
Best day: Monday, August 17
96° · 0.36 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0987° / 55°0.06
Morning56°feels 55°
Afternoon84°feels 82°
Evening81°feels 80°
Overnight66°feels 66°
87 °
Onaka, Sunday, 9 August
Light rain. High 87°, low 55°.
Pressure29.85 inHg
Wind15.9 mph NE
Humidity34%
Visibility6.2 mi
Dew point50°
Mon, 1096° / 56°0.36
Morning60°feels 59°
Afternoon92°feels 89°
Evening81°feels 82°
Overnight62°feels 59°
96 °
Onaka, Monday, 10 August
Rain. High 96°, low 56°.
Pressure29.83 inHg
Wind8 mph E
Humidity31%
Visibility6.2 mi
Dew point50°
Tue, 1189° / 63°0.06
Morning65°feels 65°
Afternoon84°feels 84°
Evening78°feels 78°
Overnight65°feels 66°
89 °
Onaka, Tuesday, 11 August
Rain. High 89°, low 63°.
Pressure29.88 inHg
Wind11.1 mph NE
Humidity52%
Visibility6.2 mi
Dew point59°
Wed, 1289° / 62°0
Morning65°feels 64°
Afternoon86°feels 83°
Evening81°feels 80°
Overnight68°feels 67°
89 °
Onaka, Wednesday, 12 August
Mostly clear. High 89°, low 62°.
Pressure29.94 inHg
Wind11.5 mph E
Humidity32%
Visibility6.2 mi
Dew point49°
Thu, 1380° / 62°0.02
Morning67°feels 67°
Afternoon79°feels 79°
Evening77°feels 77°
Overnight69°feels 69°
80 °
Onaka, Thursday, 13 August
Light rain. High 80°, low 62°.
Pressure29.97 inHg
Wind10.4 mph E
Humidity45%
Visibility—
Dew point54°
Fri, 1485° / 61°0
Morning67°feels 67°
Afternoon81°feels 80°
Evening80°feels 80°
Overnight71°feels 71°
85 °
Onaka, Friday, 14 August
Partly cloudy. High 85°, low 61°.
Pressure30.06 inHg
Wind15.4 mph S
Humidity40%
Visibility—
Dew point51°
Sat, 1573° / 63°0.17
Morning66°feels 66°
Afternoon69°feels 69°
Evening72°feels 73°
Overnight66°feels 66°
73 °
Onaka, Saturday, 15 August
Light rain. High 73°, low 63°.
Pressure30.12 inHg
Wind10.5 mph S
Humidity79%
Visibility—
Dew point61°
Sun, 1681° / 63°0.02
Morning68°feels 69°
Afternoon80°feels 80°
Evening72°feels 71°
Overnight63°feels 62°
81 °
Onaka, Sunday, 16 August
Light rain. High 81°, low 63°.
Pressure30.06 inHg
Wind13.6 mph NE
Humidity43%
Visibility—
Dew point54°
Mon, 1793° / 60°0
Morning68°feels 67°
Afternoon87°feels 87°
Evening90°feels 89°
Overnight76°feels 76°
93 °
Onaka, Monday, 17 August
Overcast. High 93°, low 60°.
Pressure29.94 inHg
Wind10.7 mph SW
Humidity42%
Visibility—
Dew point57°
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 Onaka, 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.