Lyons (Minnehaha County) — Weather
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Sign InLive· Clear within 100 kmJust updated
24°C76°F· Clear · 40% cloud cover
Feels like 26°C79°F · Low 24°C75°F · High 32°C90°F
Wind
17 km/h5 m/s10 mph from S
Humidity
91%
Pressure
1009 hPa29.79 inHgstable
UV Index
0.0Low(night)
Storm — heat
It's 24°C75°F and clear skies in Lyons at the moment.
🔥 Today's high of 32°C90°F sits 9.9°C48°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
24°C76°F
1710
91
05:00
24°C75°F
1610
90
06:00
24°C75°F
159
88
07:00
24°C75°F
159
85
08:00
25°C77°F
1610
83
09:00
27°C80°F
1610
78
10:00
29°C83°F
1811
71
11:00
30°C87°F
1912
63
12:00
32°C89°F
1711
59
13:00
32°C90°F
159
60
14:00
32°C90°F
1610
62
15:00
32°C90°F
1811
63
16:00
32°C90°F
1912
51
17:00
31°C88°F
1711
40
18:00
30°C87°F
149
47
19:00
30°C85°F
96
54
20:00
28°C82°F
106
55
21:00
26°C78°F
117
58
22:00
24°C75°F
106
68
23:00
24°C75°F
138
68
00:00
23°C74°F
1610
67
01:00
22°C72°F
138
71
02:00
21°C70°F
106
76
03:00
20°C69°F
127
79
04:00
20°C68°F
138
81
05:00
19°C66°F
128
86
06:00
18°C65°F
138
90
07:00
19°C65°F
149
91
08:00
20°C67°F
1811
85
09:00
20°C68°F
2314
77
10:00
21°C69°F
2415
71
11:00
22°C71°F
2113
67
12:00
23°C73°F
2314
60
13:00
24°C75°F
2314
55
14:00
25°C76°F
2213
51
15:00
25°C77°F
2113
50
16:00
25°C77°F
2214
50
17:00
25°C77°F
2013
50
18:00
25°C76°F
1912
50
19:00
24°C76°F
1710
50
20:00
23°C74°F
117
56
21:00
21°C70°F
75
66
22:00
19°C66°F
74
74
23:00
18°C64°F
64
79
00:00
17°C63°F
53
81
03:00
15°C59°F
32
86
06:00
14°C57°F
32
90
09:00
19°C66°F
32
75
12:00
24°C74°F
21
57
15:00
26°C78°F
42
48
mminkm/hm/smphHumidity %
Daily Forecast
TodayNW 19 km/h5 m/s12 mph(gusts 33920)67%UV 39hTodayPartly cloudy67%NW 19 km/h5 m/s12 mph (gusts 33920)UV 39h
Today
NW 19 km/h5 m/s12 mph(gusts 33920)67%UV 39h
Today
Partly cloudy
67%
NW 19 km/h5 m/s12 mph (gusts 33920)
UV 3
9h
Today — Hourly Forecast
Now
24°C76°F
17510
05:00
24°C75°F
16410
06:00
24°C75°F
1549
07:00
24°C75°F
1549
08:00
25°C77°F
16410
09:00
27°C80°F
16410
10:00
29°C83°F
18511
11:00
30°C87°F
19512
12:00
32°C89°F
17511
13:00
32°C90°F
1549
14:00
32°C90°F
16510
15:00
32°C90°F
18511
16:00
32°C90°F
19512
17:00
31°C88°F
17511
18:00
30°C87°F
1449
19:00
30°C85°F
936
20:00
28°C82°F
1036
21:00
26°C78°F
1137
22:00
24°C75°F
1036
23:00
24°C75°F
1348
06:0415h21:03
TomorrowN 24 km/h7 m/s15 mph(gusts 401125)68%UV 38hTomorrowOvercast68%N 24 km/h7 m/s15 mph (gusts 401125)UV 38h
Tomorrow
N 24 km/h7 m/s15 mph(gusts 401125)68%UV 38h
Tomorrow
Overcast
68%
N 24 km/h7 m/s15 mph (gusts 401125)
UV 3
8h
Tomorrow — Hourly Forecast
00:00
23°C74°F
16410
01:00
22°C72°F
1348
02:00
21°C70°F
1036
03:00
20°C69°F
1237
04:00
20°C68°F
1348
05:00
19°C66°F
1238
06:00
18°C65°F
1348
07:00
19°C65°F
1449
08:00
20°C67°F
18511
09:00
20°C68°F
23614
10:00
21°C69°F
24715
11:00
22°C71°F
21613
12:00
23°C73°F
23614
13:00
24°C75°F
23614
14:00
25°C76°F
22613
15:00
25°C77°F
21613
16:00
25°C77°F
22614
17:00
25°C77°F
20613
18:00
25°C76°F
19512
19:00
24°C76°F
17510
20:00
23°C74°F
1137
21:00
21°C70°F
725
22:00
19°C66°F
724
23:00
18°C64°F
624
06:0515h21:02
WednesdayNE 5 km/h2 m/s3 mph(gusts 936)69%UV 24hWednesdayOvercast69%NE 5 km/h2 m/s3 mph (gusts 936)UV 24h
Wednesday
NE 5 km/h2 m/s3 mph(gusts 936)69%UV 24h
Wednesday
Overcast
69%
NE 5 km/h2 m/s3 mph (gusts 936)
UV 2
4h
Wednesday — Forecast Overview
00:00
17°C63°F
523
03:00
15°C59°F
312
06:00
14°C57°F
312
09:00
19°C66°F
312
12:00
24°C74°F
201
15:00
26°C78°F
412
18:00
26°C79°F
312
21:00
21°C70°F
413
06:0614.9h21:01
ThursdayS 24 km/h7 m/s15 mph(gusts 411126)78%UV 29hThursdayDrizzle78%S 24 km/h7 m/s15 mph (gusts 411126)UV 29h
Thursday
S 24 km/h7 m/s15 mph(gusts 411126)78%UV 29h
Thursday
Drizzle
78%
S 24 km/h7 m/s15 mph (gusts 411126)
UV 2
9h
Thursday — Forecast Overview
00:00
17°C63°F
413
03:00
16°C61°F
1137
06:00
16°C62°F
1237
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 21 km/h6 m/s13 mph(gusts 351022)75%UV 214hFridayDrizzle75%S 21 km/h6 m/s13 mph (gusts 351022)UV 214h
Friday
S 21 km/h6 m/s13 mph(gusts 351022)75%UV 214h
Friday
Drizzle
75%
S 21 km/h6 m/s13 mph (gusts 351022)
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 21 km/h6 m/s13 mph(gusts 351022)70%UV 28hSaturdayOvercast70%S 21 km/h6 m/s13 mph (gusts 351022)UV 28h
Saturday
S 21 km/h6 m/s13 mph(gusts 351022)70%UV 28h
Saturday
Overcast
70%
S 21 km/h6 m/s13 mph (gusts 351022)
UV 2
8h
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
+3.4°C+6.2°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 24°C with Clear. The high is 32°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 Monday 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 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: 07/20/2026, 04:00 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°C.
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