10-day forecast for Lacy, SD: 60° to 100°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
100°
Best day: Monday, August 10
77° · 0.7 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0991° / 64°0.02
Morning68°feels 68°
Afternoon90°feels 86°
Evening82°feels 80°
Overnight71°feels 69°
91 °
Lacy, Sunday, 9 August
Light rain. High 91°, low 64°.
Pressure29.83 inHg
Wind16.1 mph NE
Humidity33%
Visibility6.2 mi
Dew point54°
Mon, 10100° / 65°0
Morning71°feels 70°
Afternoon99°feels 96°
Evening90°feels 89°
Overnight68°feels 66°
100 °
Lacy, Monday, 10 August
Mostly clear. High 100°, low 65°.
Pressure29.74 inHg
Wind14.7 mph SE
Humidity27%
Visibility6.2 mi
Dew point55°
Tue, 1193° / 66°0
Morning72°feels 72°
Afternoon92°feels 90°
Evening85°feels 83°
Overnight68°feels 68°
93 °
Lacy, Tuesday, 11 August
Light rain. High 93°, low 66°.
Pressure29.83 inHg
Wind10.6 mph NE
Humidity35%
Visibility6.2 mi
Dew point57°
Wed, 1292° / 68°0.14
Morning73°feels 74°
Afternoon91°feels 89°
Evening84°feels 83°
Overnight72°feels 72°
92 °
Lacy, Wednesday, 12 August
Rain. High 92°, low 68°.
Pressure29.85 inHg
Wind7.7 mph SE
Humidity39%
Visibility6.2 mi
Dew point58°
Thu, 1377° / 63°0.7
Morning67°feels 67°
Afternoon76°feels 76°
Evening74°feels 74°
Overnight68°feels 68°
77 °
Lacy, Thursday, 13 August
Heavy rain. High 77°, low 63°.
Pressure29.97 inHg
Wind18.8 mph E
Humidity57%
Visibility—
Dew point58°
Fri, 1481° / 63°0
Morning67°feels 67°
Afternoon77°feels 77°
Evening77°feels 77°
Overnight69°feels 69°
81 °
Lacy, Friday, 14 August
Overcast. High 81°, low 63°.
Pressure30.03 inHg
Wind20.4 mph S
Humidity48%
Visibility—
Dew point54°
Sat, 1582° / 67°0.01
Morning70°feels 71°
Afternoon79°feels 79°
Evening80°feels 81°
Overnight72°feels 73°
82 °
Lacy, Saturday, 15 August
Light rain. High 82°, low 67°.
Pressure30.06 inHg
Wind16.7 mph S
Humidity59%
Visibility—
Dew point61°
Sun, 1683° / 67°0.06
Morning71°feels 72°
Afternoon81°feels 83°
Evening76°feels 76°
Overnight68°feels 68°
83 °
Lacy, Sunday, 16 August
Light rain. High 83°, low 67°.
Pressure30.03 inHg
Wind12.6 mph N
Humidity55%
Visibility—
Dew point62°
Mon, 1793° / 63°0.02
Morning69°feels 69°
Afternoon85°feels 86°
Evening90°feels 88°
Overnight75°feels 75°
93 °
Lacy, Monday, 17 August
Light rain. High 93°, low 63°.
Pressure29.94 inHg
Wind7.7 mph NE
Humidity51%
Visibility—
Dew point61°
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 Lacy, 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.