Lyons (Minnehaha County) — Weather
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Sign InLive· Clear within 100 kmJust updated
30°C86°F· Clear · 26% cloud cover
Feels like 34°C93°F · Low 23°C74°F · High 32°C89°F
Wind
18 km/h5 m/s11 mph from W
Humidity
65%
Pressure
1007 hPa29.74 inHgstable
UV Index
3.8Moderate
Storm — heat
It's 30°C86°F and clear skies in Lyons at the moment.
🔥 Today's high of 32°C90°F sits 9.3°C37°F markedly warmer than the July mean (22°C72°F).
🌧️ Long-range outlook (in 12 days): Local instability on Saturday, with rain. Total ~1.5 mm. Below the monthly normal (74 mm/month). Confidence drops at this range — details may shift before then.
Hourly forecast
Detailed forecast for the next 60 hours
TemperaturePrecipitationWind
CAPE (J/kg)Instability Threshold
Now
30°C86°F
1811
65
12:00
31°C88°F
1710
61
13:00
31°C88°F
1710
63
14:00
31°C88°F
1710
66
15:00
32°C89°F
1711
64
16:00
31°C89°F
1912
53
17:00
31°C87°F
1711
43
18:00
30°C86°F
159
50
19:00
29°C84°F
149
51
20:00
27°C81°F
127
60
21:00
26°C78°F
106
66
22:00
24°C76°F
106
67
23:00
23°C74°F
128
67
00:00
23°C73°F
1610
68
01:00
22°C71°F
149
72
02:00
21°C70°F
127
75
03:00
20°C69°F
149
78
04:00
20°C67°F
138
82
05:00
19°C66°F
128
85
06:00
18°C64°F
149
88
07:00
18°C64°F
149
90
08:00
19°C66°F
1710
87
09:00
20°C68°F
2516
79
10:00
20°C68°F
2415
68
11:00
21°C70°F
2415
66
12:00
22°C72°F
2415
61
13:00
23°C74°F
2415
57
14:00
24°C75°F
2415
53
15:00
24°C76°F
2314
53
16:00
24°C76°F
2315
51
17:00
24°C76°F
2314
49
18:00
24°C76°F
2113
49
19:00
24°C75°F
1811
50
20:00
22°C72°F
127
56
21:00
20°C69°F
74
65
22:00
19°C65°F
64
73
23:00
18°C64°F
64
77
00:00
17°C62°F
64
79
03:00
15°C58°F
53
83
06:00
13°C56°F
42
88
09:00
17°C63°F
64
77
12:00
21°C71°F
64
58
15:00
24°C75°F
21
48
18:00
24°C76°F
75
47
21:00
20°C68°F
42
69
mminkm/hm/smphHumidity %
Daily Forecast
TodayNW 19 km/h5 m/s12 mph(gusts 341021)60%UV 56hTodayOvercast60%NW 19 km/h5 m/s12 mph (gusts 341021)UV 56h
Today
NW 19 km/h5 m/s12 mph(gusts 341021)60%UV 56h
Today
Overcast
60%
NW 19 km/h5 m/s12 mph (gusts 341021)
UV 5
6h
Today — Hourly Forecast
Now
30°C86°F
18511
12:00
31°C88°F
17510
13:00
31°C88°F
17510
14:00
31°C88°F
17510
15:00
32°C89°F
17511
16:00
31°C89°F
19512
17:00
31°C87°F
17511
18:00
30°C86°F
1549
19:00
29°C84°F
1449
20:00
27°C81°F
1237
21:00
26°C78°F
1036
22:00
24°C76°F
1036
23:00
23°C74°F
1238
06:0415h21:03
TomorrowN 25 km/h7 m/s16 mph(gusts 431227)68%UV 310hTomorrowPartly cloudy68%N 25 km/h7 m/s16 mph (gusts 431227)UV 310h
Tomorrow
N 25 km/h7 m/s16 mph(gusts 431227)68%UV 310h
Tomorrow
Partly cloudy
68%
N 25 km/h7 m/s16 mph (gusts 431227)
UV 3
10h
Tomorrow — Hourly Forecast
00:00
23°C73°F
16410
01:00
22°C71°F
1449
02:00
21°C70°F
1237
03:00
20°C69°F
1449
04:00
20°C67°F
1348
05:00
19°C66°F
1238
06:00
18°C64°F
1449
07:00
18°C64°F
1449
08:00
19°C66°F
17510
09:00
20°C68°F
25716
10:00
20°C68°F
24715
11:00
21°C70°F
24715
12:00
22°C72°F
24715
13:00
23°C74°F
24715
14:00
24°C75°F
24715
15:00
24°C76°F
23614
16:00
24°C76°F
23715
17:00
24°C76°F
23614
18:00
24°C76°F
21613
19:00
24°C75°F
18511
20:00
22°C72°F
1237
21:00
20°C69°F
724
22:00
19°C65°F
624
23:00
18°C64°F
624
06:0515h21:02
WednesdayNE 7 km/h2 m/s5 mph(gusts 1348)69%UV 37hWednesdayOvercast69%NE 7 km/h2 m/s5 mph (gusts 1348)UV 37h
Wednesday
NE 7 km/h2 m/s5 mph(gusts 1348)69%UV 37h
Wednesday
Overcast
69%
NE 7 km/h2 m/s5 mph (gusts 1348)
UV 3
7h
Wednesday — Forecast Overview
00:00
17°C62°F
624
03:00
15°C58°F
523
06:00
13°C56°F
412
09:00
17°C63°F
624
12:00
21°C71°F
624
15:00
24°C75°F
211
18:00
24°C76°F
725
21:00
20°C68°F
412
06:0614.9h21:01
ThursdayS 20 km/h5 m/s12 mph(gusts 34921)76%UV 24hThursdayDrizzle76%S 20 km/h5 m/s12 mph (gusts 34921)UV 24h
Thursday
S 20 km/h5 m/s12 mph(gusts 34921)76%UV 24h
Thursday
Drizzle
76%
S 20 km/h5 m/s12 mph (gusts 34921)
UV 2
4h
Thursday — Forecast Overview
00:00
17°C62°F
412
03:00
14°C58°F
211
06:00
13°C56°F
412
09:00
19°C65°F
1137
12:00
23°C73°F
18511
15:00
23°C73°F
16510
18:00
22°C72°F
1549
21:00
20°C67°F
19512
06:0714.9h21:00
FridayS 22 km/h6 m/s14 mph(gusts 381123)74%UV 213hFridayDrizzle74%S 22 km/h6 m/s14 mph (gusts 381123)UV 213h
Friday
S 22 km/h6 m/s14 mph(gusts 381123)74%UV 213h
Friday
Drizzle
74%
S 22 km/h6 m/s14 mph (gusts 381123)
UV 2
13h
Friday — Forecast Overview
00:00
16°C60°F
1348
03:00
15°C60°F
1338
06:00
15°C58°F
1549
09:00
16°C60°F
17510
12:00
23°C73°F
19512
15:00
27°C80°F
19512
18:00
27°C80°F
21613
06:0814.9h20:59
SaturdayS 21 km/h6 m/s13 mph(gusts 361023)71%UV 38hSaturdayOvercast71%S 21 km/h6 m/s13 mph (gusts 361023)UV 38h
Saturday
S 21 km/h6 m/s13 mph(gusts 361023)71%UV 38h
Saturday
Overcast
71%
S 21 km/h6 m/s13 mph (gusts 361023)
UV 3
8h
Night21°C70°F
21°C70°FMorning25°C78°F
25°C78°FAfternoon25°C78°F
25°C78°FEvening36°C97°F
36°C97°F06:0914.8h20:58
SundaySW 16 km/h5 m/s10 mph(gusts 30818)67%UV 310hSundayDrizzle67%SW 16 km/h5 m/s10 mph (gusts 30818)UV 310h
Sunday
SW 16 km/h5 m/s10 mph(gusts 30818)67%UV 310h
Sunday
Drizzle
67%
SW 16 km/h5 m/s10 mph (gusts 30818)
UV 3
10h
Night27°C81°F
27°C81°FMorning29°C84°F
29°C84°FAfternoon29°C84°F
29°C84°FEvening37°C99°F
37°C99°F06:1014.8h20:57
Monday0.7 mm0.03 inSE 23 km/h6 m/s14 mph(gusts 401125)60%UV 36hMondayLight rain60%SE 23 km/h6 m/s14 mph (gusts 401125)0.7 mm0.03 inUV 36h
Monday
0.7 mm0.03 inSE 23 km/h6 m/s14 mph(gusts 401125)60%UV 36h
Monday
Light rain
60%
SE 23 km/h6 m/s14 mph (gusts 401125)
0.7 mm0.03 in
UV 3
6h
Night28°C82°F
28°C82°FMorning29°C84°F
29°C84°FAfternoon29°C84°F
29°C84°FEvening34°C92°F
34°C92°F06:1114.8h20:56
Extended Forecast (GFS)TuesdayS 29 km/h8 m/s18 mph(gusts 511432)30%13hTuesdayDrizzle30%S 29 km/h8 m/s18 mph (gusts 511432)13h
Tuesday
S 29 km/h8 m/s18 mph(gusts 511432)30%13h
Tuesday
Drizzle
30%
S 29 km/h8 m/s18 mph (gusts 511432)
13h
Night26°C79°F
26°C79°FMorning31°C88°F
31°C88°FAfternoon31°C88°F
31°C88°FEvening40°C103°F
40°C103°F06:1214.7h20:55
WednesdaySE 20 km/h6 m/s13 mph(gusts 431227)41%15hWednesdayClear41%SE 20 km/h6 m/s13 mph (gusts 431227)15h
Wednesday
SE 20 km/h6 m/s13 mph(gusts 431227)41%15h
Wednesday
Clear
41%
SE 20 km/h6 m/s13 mph (gusts 431227)
15h
Night24°C75°F
24°C75°FMorning30°C85°F
30°C85°FAfternoon30°C85°F
30°C85°FEvening42°C108°F
42°C108°F06:1314.7h20:54
ThursdayNE 38 km/h11 m/s24 mph(gusts 581636)44%13hThursdayClear44%NE 38 km/h11 m/s24 mph (gusts 581636)13h
Thursday
NE 38 km/h11 m/s24 mph(gusts 581636)44%13h
Thursday
Clear
44%
NE 38 km/h11 m/s24 mph (gusts 581636)
13h
Night28°C82°F
28°C82°FMorning33°C92°F
33°C92°FAfternoon33°C92°F
33°C92°FEvening34°C94°F
34°C94°F06:1414.6h20:53
FridayN 15 km/h4 m/s10 mph(gusts 30819)22%13hFridayClear22%N 15 km/h4 m/s10 mph (gusts 30819)13h
Friday
N 15 km/h4 m/s10 mph(gusts 30819)22%13h
Friday
Clear
22%
N 15 km/h4 m/s10 mph (gusts 30819)
13h
Night20°C69°F
20°C69°FMorning28°C82°F
28°C82°FAfternoon28°C82°F
28°C82°FEvening36°C96°F
36°C96°F06:1514.6h20:52
Saturday1.5 mm0.06 inSE 30 km/h8 m/s19 mph(gusts 601737)40%9hSaturdayLight rain40%SE 30 km/h8 m/s19 mph (gusts 601737)1.5 mm0.06 in9h
Saturday
1.5 mm0.06 inSE 30 km/h8 m/s19 mph(gusts 601737)40%9h
Saturday
Light rain
40%
SE 30 km/h8 m/s19 mph (gusts 601737)
1.5 mm0.06 in
9h
Night22°C71°F
22°C71°FMorning29°C83°F
29°C83°FAfternoon29°C83°F
29°C83°FEvening35°C95°F
35°C95°F06:1614.6h20:51
SundayNW 29 km/h8 m/s18 mph(gusts 481330)42%14hSundayDrizzle42%NW 29 km/h8 m/s18 mph (gusts 481330)14h
Sunday
NW 29 km/h8 m/s18 mph(gusts 481330)42%14h
Sunday
Drizzle
42%
NW 29 km/h8 m/s18 mph (gusts 481330)
14h
Night25°C76°F
25°C76°FMorning28°C83°F
28°C83°FAfternoon28°C83°F
28°C83°FEvening33°C92°F
33°C92°F06:1714.5h20:49
MondayN 26 km/h7 m/s16 mph(gusts 501431)41%10hMondayPartly cloudy41%N 26 km/h7 m/s16 mph (gusts 501431)10h
Monday
N 26 km/h7 m/s16 mph(gusts 501431)41%10h
Monday
Partly cloudy
41%
N 26 km/h7 m/s16 mph (gusts 501431)
10h
Night18°C64°F
18°C64°FMorning19°C66°F
19°C66°FAfternoon19°C66°F
19°C66°FEvening31°C88°F
31°C88°F06:1814.5h20:48
TuesdaySE 31 km/h9 m/s20 mph39%15hTuesdayClear39%SE 31 km/h9 m/s20 mph15h
Tuesday
SE 31 km/h9 m/s20 mph39%15h
Tuesday
Clear
39%
SE 31 km/h9 m/s20 mph
15h
Night18°C64°F
18°C64°FMorning26°C80°F
26°C80°FAfternoon26°C80°F
26°C80°FEvening34°C94°F
34°C94°F06:1914.5h20:47
Sunrise
06:04
Civil Dawn 05:34
Sunset
21:03
Civil Dusk 21:33
Today vs. seasonal normal
+2.8°C+5.1°F
Lyons is located in South Dakota, United States. Elevation: 470m. Annual average temperature: 7.1°C. Annual precipitation: 608mm.
Frequently Asked Questions
What is the weather like in Lyons today?
Today in Lyons, United States, the temperature is 30°C with Clear. The high is 32°C and the low is 23°C.
What is the 16-day forecast for Lyons?
The 16-day forecast for Lyons shows the warmest day is Wednesday at 44°C, while the coolest night is Thursday at 13°C. 7 day(s) have precipitation expected.
What time is sunrise and sunset in Lyons?
In Lyons, sunrise is at 06:04 and sunset is at 21:03. Day length is approximately 14h 58m.
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 7.1°C and receives 608mm of precipitation per year.
Last updated: 07/20/2026, 11:00 AM
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 7.1°C.
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