10-day forecast for Lyons, SD: 55° to 97°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
94°
Best day: Tuesday, August 11
83° · 0.3 in
Worst day: Sunday, August 9
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0983° / 68°0.3
Morning71°feels 72°
Afternoon80°feels 80°
Evening80°feels 80°
Overnight70°feels 71°
83 °
Lyons, Sunday, 9 August
Rain. High 83°, low 68°.
Pressure29.77 inHg
Wind10.6 mph NE
Humidity54%
Visibility6.2 mi
Dew point67°
Mon, 1095° / 64°0.16
Morning68°feels 68°
Afternoon95°feels 93°
Evening86°feels 86°
Overnight69°feels 69°
95 °
Lyons, Monday, 10 August
Rain. High 95°, low 64°.
Pressure29.80 inHg
Wind6.7 mph E
Humidity34%
Visibility6.2 mi
Dew point57°
Tue, 1194° / 63°0.01
Morning68°feels 68°
Afternoon92°feels 92°
Evening83°feels 84°
Overnight72°feels 73°
94 °
Lyons, Tuesday, 11 August
Light rain. High 94°, low 63°.
Pressure29.80 inHg
Wind10.9 mph NE
Humidity47%
Visibility6.2 mi
Dew point64°
Wed, 1295° / 68°0.02
Morning72°feels 73°
Afternoon92°feels 92°
Evening86°feels 85°
Overnight72°feels 72°
95 °
Lyons, Wednesday, 12 August
Light rain. High 95°, low 68°.
Pressure29.83 inHg
Wind8 mph SE
Humidity39%
Visibility6.2 mi
Dew point61°
Thu, 1383° / 58°0.16
Morning64°feels 64°
Afternoon80°feels 80°
Evening77°feels 77°
Overnight64°feels 63°
83 °
Lyons, Thursday, 13 August
Rain. High 83°, low 58°.
Pressure30.03 inHg
Wind14.6 mph NE
Humidity31%
Visibility—
Dew point44°
Fri, 1486° / 57°0
Morning64°feels 63°
Afternoon83°feels 81°
Evening82°feels 80°
Overnight68°feels 66°
86 °
Lyons, Friday, 14 August
Clear. High 86°, low 57°.
Pressure30.15 inHg
Wind10.8 mph SE
Humidity29%
Visibility—
Dew point44°
Sat, 1583° / 62°0
Morning66°feels 66°
Afternoon79°feels 79°
Evening82°feels 82°
Overnight73°feels 74°
83 °
Lyons, Saturday, 15 August
Overcast. High 83°, low 62°.
Pressure30.09 inHg
Wind16.3 mph S
Humidity39%
Visibility—
Dew point49°
Sun, 1697° / 66°0.18
Morning74°feels 76°
Afternoon91°feels 94°
Evening83°feels 85°
Overnight67°feels 67°
97 °
Lyons, Sunday, 16 August
Rain. High 97°, low 66°.
Pressure29.94 inHg
Wind22.5 mph NE
Humidity45%
Visibility—
Dew point64°
Mon, 1788° / 66°0.12
Morning73°feels 73°
Afternoon88°feels 89°
Evening85°feels 84°
Overnight72°feels 72°
88 °
Lyons, Monday, 17 August
Rain. High 88°, low 66°.
Pressure30.03 inHg
Wind10.3 mph E
Humidity44%
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 Lyons, 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.