Lyons (Minnehaha County) — Weather
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Sign InLive· Clear within 100 kmJust updated
27°C81°F· Clear · 15% cloud cover
Feels like 29°C83°F · Low 24°C74°F · High 31°C88°F
Wind
18 km/h5 m/s11 mph from SW
Humidity
78%
Pressure
1008 hPa29.75 inHgstable
UV Index
0.5Low
Storm — heat
It's 27°C81°F and clear skies in Lyons at the moment.
🔥 Today's high of 31°C88°F sits 9.0°C32°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
27°C81°F
1811
78
10:00
29°C84°F
2012
71
11:00
30°C87°F
1912
64
12:00
31°C88°F
1811
59
13:00
31°C88°F
1710
63
14:00
31°C87°F
1610
66
15:00
31°C88°F
1912
65
16:00
31°C87°F
1811
51
17:00
31°C87°F
159
44
18:00
30°C86°F
149
50
19:00
29°C84°F
149
51
20:00
27°C81°F
138
58
21:00
25°C78°F
106
67
22:00
24°C75°F
107
69
23:00
24°C74°F
148
64
00:00
23°C73°F
1610
67
01:00
22°C71°F
149
74
02:00
21°C70°F
138
75
03:00
20°C68°F
149
80
04:00
19°C67°F
138
83
05:00
19°C66°F
128
86
06:00
18°C64°F
138
90
07:00
18°C65°F
138
91
08:00
19°C67°F
1811
87
09:00
19°C67°F
2616
72
10:00
20°C68°F
2515
68
11:00
21°C70°F
2415
63
12:00
23°C73°F
2415
58
13:00
24°C74°F
2314
53
14:00
24°C76°F
2315
53
15:00
25°C76°F
2315
52
16:00
25°C77°F
2314
48
17:00
25°C77°F
2415
48
18:00
25°C76°F
2213
48
19:00
24°C75°F
1911
49
20:00
23°C73°F
138
55
21:00
21°C69°F
85
63
22:00
19°C66°F
85
70
23:00
18°C65°F
85
72
00:00
17°C63°F
85
73
03:00
14°C58°F
63
83
06:00
13°C55°F
32
89
09:00
17°C63°F
74
74
12:00
22°C71°F
11
56
15:00
24°C75°F
21
49
18:00
24°C76°F
32
50
21:00
20°C68°F
43
67
mminkm/hm/smphHumidity %
Daily Forecast
TodayNW 20 km/h6 m/s12 mph(gusts 34921)63%UV 38hTodayOvercast63%NW 20 km/h6 m/s12 mph (gusts 34921)UV 38h
Today
NW 20 km/h6 m/s12 mph(gusts 34921)63%UV 38h
Today
Overcast
63%
NW 20 km/h6 m/s12 mph (gusts 34921)
UV 3
8h
Today — Hourly Forecast
Now
27°C81°F
18511
10:00
29°C84°F
20612
11:00
30°C87°F
19512
12:00
31°C88°F
18511
13:00
31°C88°F
17510
14:00
31°C87°F
16410
15:00
31°C88°F
19512
16:00
31°C87°F
18511
17:00
31°C87°F
1549
18:00
30°C86°F
1449
19:00
29°C84°F
1449
20:00
27°C81°F
1348
21:00
25°C78°F
1036
22:00
24°C75°F
1037
23:00
24°C74°F
1448
06:0415h21:03
TomorrowN 26 km/h7 m/s16 mph(gusts 441227)67%UV 39hTomorrowOvercast67%N 26 km/h7 m/s16 mph (gusts 441227)UV 39h
Tomorrow
N 26 km/h7 m/s16 mph(gusts 441227)67%UV 39h
Tomorrow
Overcast
67%
N 26 km/h7 m/s16 mph (gusts 441227)
UV 3
9h
Tomorrow — Hourly Forecast
00:00
23°C73°F
16510
01:00
22°C71°F
1449
02:00
21°C70°F
1348
03:00
20°C68°F
1449
04:00
19°C67°F
1348
05:00
19°C66°F
1238
06:00
18°C64°F
1348
07:00
18°C65°F
1348
08:00
19°C67°F
18511
09:00
19°C67°F
26716
10:00
20°C68°F
25715
11:00
21°C70°F
24715
12:00
23°C73°F
24715
13:00
24°C74°F
23614
14:00
24°C76°F
23715
15:00
25°C76°F
23715
16:00
25°C77°F
23614
17:00
25°C77°F
24715
18:00
25°C76°F
22613
19:00
24°C75°F
19511
20:00
23°C73°F
1348
21:00
21°C69°F
825
22:00
19°C66°F
825
23:00
18°C65°F
825
06:0515h21:02
WednesdayE 8 km/h2 m/s5 mph(gusts 1449)68%UV 39hWednesdayOvercast68%E 8 km/h2 m/s5 mph (gusts 1449)UV 39h
Wednesday
E 8 km/h2 m/s5 mph(gusts 1449)68%UV 39h
Wednesday
Overcast
68%
E 8 km/h2 m/s5 mph (gusts 1449)
UV 3
9h
Wednesday — Forecast Overview
00:00
17°C63°F
825
03:00
14°C58°F
623
06:00
13°C55°F
312
09:00
17°C63°F
724
12:00
22°C71°F
101
15:00
24°C75°F
201
18:00
24°C76°F
312
21:00
20°C68°F
413
06:0614.9h21:01
ThursdayS 21 km/h6 m/s13 mph(gusts 371023)76%UV 26hThursdayDrizzle76%S 21 km/h6 m/s13 mph (gusts 371023)UV 26h
Thursday
S 21 km/h6 m/s13 mph(gusts 371023)76%UV 26h
Thursday
Drizzle
76%
S 21 km/h6 m/s13 mph (gusts 371023)
UV 2
6h
Thursday — Forecast Overview
00:00
16°C61°F
412
03:00
14°C58°F
624
06:00
14°C57°F
724
09:00
17°C63°F
16410
12:00
19°C65°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 23 km/h6 m/s14 mph(gusts 401125)74%UV 214hFridayDrizzle74%S 23 km/h6 m/s14 mph (gusts 401125)UV 214h
Friday
S 23 km/h6 m/s14 mph(gusts 401125)74%UV 214h
Friday
Drizzle
74%
S 23 km/h6 m/s14 mph (gusts 401125)
UV 2
14h
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 22 km/h6 m/s13 mph(gusts 361022)69%UV 29hSaturdayOvercast69%S 22 km/h6 m/s13 mph (gusts 361022)UV 29h
Saturday
S 22 km/h6 m/s13 mph(gusts 361022)69%UV 29h
Saturday
Overcast
69%
S 22 km/h6 m/s13 mph (gusts 361022)
UV 2
9h
Night22°C71°F
22°C71°FMorning26°C79°F
26°C79°FAfternoon26°C79°F
26°C79°FEvening38°C100°F
38°C100°F06:0914.8h20:58
SundayS 24 km/h7 m/s15 mph(gusts 411125)62%UV 211hSundayPartly cloudy62%S 24 km/h7 m/s15 mph (gusts 411125)UV 211h
Sunday
S 24 km/h7 m/s15 mph(gusts 411125)62%UV 211h
Sunday
Partly cloudy
62%
S 24 km/h7 m/s15 mph (gusts 411125)
UV 2
11h
Night27°C80°F
27°C80°FMorning29°C85°F
29°C85°FAfternoon29°C85°F
29°C85°FEvening37°C98°F
37°C98°F06:1014.8h20:57
Monday0.9 mm0.04 inNE 26 km/h7 m/s16 mph40%UV 212hMondayLight rain40%NE 26 km/h7 m/s16 mph0.9 mm0.04 inUV 212h
Monday
0.9 mm0.04 inNE 26 km/h7 m/s16 mph40%UV 212h
Monday
Light rain
40%
NE 26 km/h7 m/s16 mph
0.9 mm0.04 in
UV 2
12h
Night28°C82°F
28°C82°FMorning35°C94°F
35°C94°FAfternoon35°C94°F
35°C94°FEvening39°C102°F
39°C102°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
+2.6°C+4.6°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 27°C with Clear. The high is 31°C and the low is 24°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 Wednesday at 13°C. 6 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, 09:00 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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