Lyons (Minnehaha County) — Weather
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27°C80°F· Overcast · 80% cloud cover
Feels like 28°C82°F · Low 26°C78°F · High 28°C82°F
Wind
17 km/h5 m/s10 mph from S
Humidity
77%
Pressure
1010 hPa29.82 inHgstable
UV Index
0.0Low(night)
Storm — heat
It's 27°C81°F and overcast in Lyons at the moment.
🌧️ Wet period, moderate-intensity Thursday–Friday, with rain. Total ~7.7 mm. Peak Thursday (5.5 mm). Below the monthly normal (74 mm/month).
🔥 Today's high of 28°C82°F sits 5.3°C37°F markedly warmer than the July mean (22°C72°F).
Hourly forecast
Detailed forecast for the next 60 hours
TemperaturePrecipitationWind
CAPE (J/kg)Instability Threshold
mminkm/hm/smphHumidity %
Daily Forecast
TodayS 17 km/h5 m/s10 mph(gusts 29818)77%7hToday77%S 17 km/h5 m/s10 mph (gusts 29818)7h
Today
S 17 km/h5 m/s10 mph(gusts 29818)77%7h
Today
77%
S 17 km/h5 m/s10 mph (gusts 29818)
7h
Today — Hourly Forecast
06:0315h21:04
TomorrowW 20 km/h6 m/s12 mph(gusts 341021)63%UV 312hTomorrow63%W 20 km/h6 m/s12 mph (gusts 341021)UV 312h
Tomorrow
W 20 km/h6 m/s12 mph(gusts 341021)63%UV 312h
Tomorrow
63%
W 20 km/h6 m/s12 mph (gusts 341021)
UV 3
12h
Tomorrow — Hourly Forecast
06:0415h21:03
TuesdayN 25 km/h7 m/s15 mph(gusts 431227)63%UV 310hTuesday63%N 25 km/h7 m/s15 mph (gusts 431227)UV 310h
Tuesday
N 25 km/h7 m/s15 mph(gusts 431227)63%UV 310h
Tuesday
63%
N 25 km/h7 m/s15 mph (gusts 431227)
UV 3
10h
Tuesday — Forecast Overview
06:0515h21:02
WednesdayNE 13 km/h4 m/s8 mph(gusts 31919)62%UV 39hWednesday62%NE 13 km/h4 m/s8 mph (gusts 31919)UV 39h
Wednesday
NE 13 km/h4 m/s8 mph(gusts 31919)62%UV 39h
Wednesday
62%
NE 13 km/h4 m/s8 mph (gusts 31919)
UV 3
9h
Wednesday — Forecast Overview
06:0614.9h21:01
Thursday5.5 mm0.22 in· heavyS 25 km/h7 m/s16 mph(gusts 411125)75%UV 25hThursday75%S 25 km/h7 m/s16 mph (gusts 411125)5.5 mm0.22 inUV 25h
Thursday
5.5 mm0.22 in· heavyS 25 km/h7 m/s16 mph(gusts 411125)75%UV 25h
Thursday
75%
S 25 km/h7 m/s16 mph (gusts 411125)
5.5 mm0.22 in
UV 2
5h
Thursday — Forecast Overview
06:0714.9h21:00
Friday2.2 mm0.09 inS 24 km/h7 m/s15 mph(gusts 411126)85%UV 211hFriday85%S 24 km/h7 m/s15 mph (gusts 411126)2.2 mm0.09 inUV 211h
Friday
2.2 mm0.09 inS 24 km/h7 m/s15 mph(gusts 411126)85%UV 211h
Friday
85%
S 24 km/h7 m/s15 mph (gusts 411126)
2.2 mm0.09 in
UV 2
11h
Friday — Forecast Overview
06:0814.9h20:59
SaturdayS 20 km/h6 m/s13 mph(gusts 34921)74%UV 29hSaturday74%S 20 km/h6 m/s13 mph (gusts 34921)UV 29h
Saturday
S 20 km/h6 m/s13 mph(gusts 34921)74%UV 29h
Saturday
74%
S 20 km/h6 m/s13 mph (gusts 34921)
UV 2
9h
Night
19°C66°F
Morning
24°C75°F
Afternoon
24°C75°F
Evening
36°C96°F
06:0914.8h20:58
SundayN 15 km/h4 m/s9 mph(gusts 28817)46%UV 210hSunday46%N 15 km/h4 m/s9 mph (gusts 28817)UV 210h
Sunday
N 15 km/h4 m/s9 mph(gusts 28817)46%UV 210h
Sunday
46%
N 15 km/h4 m/s9 mph (gusts 28817)
UV 2
10h
Night
28°C83°F
Morning
30°C87°F
Afternoon
30°C87°F
Evening
35°C95°F
06:1014.8h20:57
MondayNE 15 km/h4 m/s9 mph(gusts 27717)34%15hMonday34%NE 15 km/h4 m/s9 mph (gusts 27717)15h
Monday
NE 15 km/h4 m/s9 mph(gusts 27717)34%15h
Monday
34%
NE 15 km/h4 m/s9 mph (gusts 27717)
15h
Night
22°C71°F
Morning
29°C84°F
Afternoon
29°C84°F
Evening
37°C99°F
06:1114.8h20:56
TuesdaySE 24 km/h7 m/s15 mph(gusts 561535)39%15hTuesday39%SE 24 km/h7 m/s15 mph (gusts 561535)15h
Tuesday
SE 24 km/h7 m/s15 mph(gusts 561535)39%15h
Tuesday
39%
SE 24 km/h7 m/s15 mph (gusts 561535)
15h
Night
23°C74°F
Morning
30°C87°F
Afternoon
30°C87°F
Evening
40°C104°F
06:1214.7h20:55
WednesdaySE 31 km/h9 m/s19 mph(gusts 521532)54%15hWednesday54%SE 31 km/h9 m/s19 mph (gusts 521532)15h
Wednesday
SE 31 km/h9 m/s19 mph(gusts 521532)54%15h
Wednesday
54%
SE 31 km/h9 m/s19 mph (gusts 521532)
15h
Night
23°C73°F
Morning
30°C86°F
Afternoon
30°C86°F
Evening
38°C100°F
06:1314.7h20:54
Thursday0.9 mm0.03 inSE 25 km/h7 m/s15 mph(gusts 451328)60%12hThursday60%SE 25 km/h7 m/s15 mph (gusts 451328)0.9 mm0.03 in12h
Thursday
0.9 mm0.03 inSE 25 km/h7 m/s15 mph(gusts 451328)60%12h
Thursday
60%
SE 25 km/h7 m/s15 mph (gusts 451328)
0.9 mm0.03 in
12h
Night
25°C78°F
Morning
29°C84°F
Afternoon
29°C84°F
Evening
34°C94°F
06:1414.6h20:53
Friday0.6 mm0.02 inE 18 km/h5 m/s11 mph(gusts 32920)52%15hFriday52%E 18 km/h5 m/s11 mph (gusts 32920)0.6 mm0.02 in15h
Friday
0.6 mm0.02 inE 18 km/h5 m/s11 mph(gusts 32920)52%15h
Friday
52%
E 18 km/h5 m/s11 mph (gusts 32920)
0.6 mm0.02 in
15h
Night
23°C73°F
Morning
28°C83°F
Afternoon
28°C83°F
Evening
38°C100°F
06:1514.6h20:52
Saturday8.6 mm0.34 in· heavySE 25 km/h7 m/s16 mph(gusts 451328)71%12hSaturday71%SE 25 km/h7 m/s16 mph (gusts 451328)8.6 mm0.34 in12h
Saturday
8.6 mm0.34 in· heavySE 25 km/h7 m/s16 mph(gusts 451328)71%12h
Saturday
71%
SE 25 km/h7 m/s16 mph (gusts 451328)
8.6 mm0.34 in
12h
Night
26°C78°F
Morning
24°C75°F
Afternoon
24°C75°F
Evening
34°C93°F
06:1614.6h20:51
SundaySE 24 km/h7 m/s15 mph(gusts 521432)49%14hSunday49%SE 24 km/h7 m/s15 mph (gusts 521432)14h
Sunday
SE 24 km/h7 m/s15 mph(gusts 521432)49%14h
Sunday
49%
SE 24 km/h7 m/s15 mph (gusts 521432)
14h
Night
25°C77°F
Morning
28°C83°F
Afternoon
28°C83°F
Evening
42°C107°F
06:1714.5h20:49
MondayN 42 km/h12 m/s26 mph(gusts 691943)60%12hMonday60%N 42 km/h12 m/s26 mph (gusts 691943)12h
Monday
N 42 km/h12 m/s26 mph(gusts 691943)60%12h
Monday
60%
N 42 km/h12 m/s26 mph (gusts 691943)
12h
Night
30°C85°F
Morning
24°C76°F
Afternoon
24°C76°F
Evening
24°C75°F
06:1814.5h20:48
Sunrise
06:03
Civil Dawn 05:33
Sunset
21:03
Civil Dusk 21:33
Today vs. seasonal normal
-1.2°C-2.1°F
Lyons is located in South Dakota, United States. Elevation: 470m. Annual average temperature: 7°C. Annual precipitation: 608mm.
Frequently Asked Questions
What is the weather like in Lyons today?
Today in Lyons, United States, the temperature is 27°C with Overcast. The high is 28°C and the low is 26°C.
What is the 16-day forecast for Lyons?
The 16-day forecast for Lyons shows the warmest day is Sunday at 42°C, while the coolest night is Wednesday at 13°C. 5 day(s) have precipitation expected.
What time is sunrise and sunset in Lyons?
In Lyons, sunrise is at 06:03 and sunset is at 21:03. Day length is approximately 14h 59m.
How accurate is the weather forecast for Lyons?
Our forecasts for Lyons use the DWD ICON model, one of the world's most advanced weather prediction systems. Accuracy is typically 85-90% for 1-3 day forecasts. Lyons has an annual average temperature of 7°C and receives 608mm of precipitation per year.
Last updated: 07/19/2026, 10:00 PM
July climate in Lyons
Normals for July: average 22°C (16–29°C), around 74 mm of rain across the month. About 15°C warmer than the annual average of 7°C.
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