Lyons (Minnehaha County) — Weather
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26°C78°F· Partly cloudy · 45% cloud cover
Feels like 27°C81°F · Low 26°C78°F · High 26°C78°F
Wind
17 km/h5 m/s11 mph from S
Humidity
85%
Pressure
1010 hPa29.83 inHgstable
UV Index
0.0Low(night)
Storm — heat
It's 26°C79°F and partly cloudy 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 26°C79°F sits 3.3°C37°F warmer than the July mean (22°C72°F).
Hourly forecast
Detailed forecast for the next 60 hours
TemperaturePrecipitationWind
CAPE (J/kg)Instability Threshold
Now
26°C78°F
1711
85
00:00
25°C77°F
1811
88
01:00
25°C77°F
1811
90
02:00
25°C76°F
1811
91
03:00
24°C76°F
1811
91
04:00
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
03:00
20°C69°F
127
79
06:00
18°C65°F
138
90
09:00
20°C68°F
2314
77
12:00
23°C73°F
2314
60
15:00
25°C77°F
2113
50
18:00
25°C76°F
1912
50
21:00
21°C70°F
75
66
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
mminkm/hm/smphHumidity %
Daily Forecast
TodayS 17 km/h5 m/s11 mph(gusts 30818)85%8hTodayPartly cloudy85%S 17 km/h5 m/s11 mph (gusts 30818)8h
Today
S 17 km/h5 m/s11 mph(gusts 30818)85%8h
Today
Partly cloudy
85%
S 17 km/h5 m/s11 mph (gusts 30818)
8h
06:0315h21:04
TomorrowW 19 km/h5 m/s12 mph(gusts 33920)71%UV 39hTomorrowPartly cloudy71%W 19 km/h5 m/s12 mph (gusts 33920)UV 39h
Tomorrow
W 19 km/h5 m/s12 mph(gusts 33920)71%UV 39h
Tomorrow
Partly cloudy
71%
W 19 km/h5 m/s12 mph (gusts 33920)
UV 3
9h
Tomorrow — Hourly Forecast
00:00
25°C77°F
18511
01:00
25°C77°F
18511
02:00
25°C76°F
18511
03:00
24°C76°F
18511
04:00
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
TuesdayN 24 km/h7 m/s15 mph(gusts 401125)68%UV 38hTuesdayPartly cloudy68%N 24 km/h7 m/s15 mph (gusts 401125)UV 38h
Tuesday
N 24 km/h7 m/s15 mph(gusts 401125)68%UV 38h
Tuesday
Partly cloudy
68%
N 24 km/h7 m/s15 mph (gusts 401125)
UV 3
8h
Tuesday — Forecast Overview
00:00
23°C74°F
16410
03:00
20°C69°F
1237
06:00
18°C65°F
1348
09:00
20°C68°F
23614
12:00
23°C73°F
23614
15:00
25°C77°F
21613
18:00
25°C76°F
19512
21:00
21°C70°F
725
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
Thursday5.5 mm0.22 in· heavyS 25 km/h7 m/s16 mph(gusts 411126)78%UV 26hThursdayLight rain78%S 25 km/h7 m/s16 mph (gusts 411126)5.5 mm0.22 inUV 26h
Thursday
5.5 mm0.22 in· heavyS 25 km/h7 m/s16 mph(gusts 411126)78%UV 26h
Thursday
Light rain
78%
S 25 km/h7 m/s16 mph (gusts 411126)
5.5 mm0.22 in
UV 2
6h
Thursday — Forecast Overview
00:00
17°C63°F
413
03:00
20°C68°F
1348
06:00
17°C63°F
16510
09:00
17°C63°F
16410
12:00
24°C76°F
25716
15:00
25°C78°F
22614
18:00
20°C67°F
1348
21:00
17°C63°F
1549
06:0714.9h21:00
Friday2.2 mm0.09 inS 20 km/h6 m/s13 mph(gusts 351022)83%UV 213hFridayLight rain83%S 20 km/h6 m/s13 mph (gusts 351022)2.2 mm0.09 inUV 213h
Friday
2.2 mm0.09 inS 20 km/h6 m/s13 mph(gusts 351022)83%UV 213h
Friday
Light rain
83%
S 20 km/h6 m/s13 mph (gusts 351022)
2.2 mm0.09 in
UV 2
13h
Friday — Forecast Overview
00:00
17°C62°F
16410
03:00
17°C62°F
825
06:00
17°C62°F
936
09:00
17°C63°F
1448
12:00
21°C69°F
1448
19:00
30°C85°F
17511
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
Extended Forecast (GFS)Monday0.9 mm0.04 inNE 17 km/h5 m/s11 mph(gusts 28817)47%UV 212hMondayLight rain47%NE 17 km/h5 m/s11 mph (gusts 28817)0.9 mm0.04 inUV 212h
Monday
0.9 mm0.04 inNE 17 km/h5 m/s11 mph(gusts 28817)47%UV 212h
Monday
Light rain
47%
NE 17 km/h5 m/s11 mph (gusts 28817)
0.9 mm0.04 in
UV 2
12h
Night28°C82°F
28°C82°FMorning29°C84°F
29°C84°FAfternoon29°C84°F
29°C84°FEvening37°C99°F
37°C99°F06:1114.8h20:56
TuesdaySE 24 km/h7 m/s15 mph(gusts 561535)39%15hTuesdayClear39%SE 24 km/h7 m/s15 mph (gusts 561535)15h
Tuesday
SE 24 km/h7 m/s15 mph(gusts 561535)39%15h
Tuesday
Clear
39%
SE 24 km/h7 m/s15 mph (gusts 561535)
15h
Night23°C74°F
23°C74°FMorning30°C87°F
30°C87°FAfternoon30°C87°F
30°C87°FEvening40°C104°F
40°C104°F06:1214.7h20:55
WednesdaySE 31 km/h9 m/s19 mph(gusts 521532)54%15hWednesdayClear54%SE 31 km/h9 m/s19 mph (gusts 521532)15h
Wednesday
SE 31 km/h9 m/s19 mph(gusts 521532)54%15h
Wednesday
Clear
54%
SE 31 km/h9 m/s19 mph (gusts 521532)
15h
Night23°C73°F
23°C73°FMorning30°C86°F
30°C86°FAfternoon30°C86°F
30°C86°FEvening38°C100°F
38°C100°F06:1314.7h20:54
Thursday0.9 mm0.03 inSE 25 km/h7 m/s15 mph(gusts 451328)60%12hThursdayDrizzle60%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
Drizzle
60%
SE 25 km/h7 m/s15 mph (gusts 451328)
0.9 mm0.03 in
12h
Night25°C78°F
25°C78°FMorning29°C84°F
29°C84°FAfternoon29°C84°F
29°C84°FEvening34°C94°F
34°C94°F06:1414.6h20:53
Friday0.6 mm0.02 inE 18 km/h5 m/s11 mph(gusts 32920)52%15hFridayDrizzle52%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
Drizzle
52%
E 18 km/h5 m/s11 mph (gusts 32920)
0.6 mm0.02 in
15h
Night23°C73°F
23°C73°FMorning28°C83°F
28°C83°FAfternoon28°C83°F
28°C83°FEvening38°C100°F
38°C100°F06:1514.6h20:52
Saturday8.6 mm0.34 in· heavySE 25 km/h7 m/s16 mph(gusts 451328)71%12hSaturdayPartly cloudy71%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
Partly cloudy
71%
SE 25 km/h7 m/s16 mph (gusts 451328)
8.6 mm0.34 in
12h
Night26°C78°F
26°C78°FMorning24°C75°F
24°C75°FAfternoon24°C75°F
24°C75°FEvening34°C93°F
34°C93°F06:1614.6h20:51
SundaySE 24 km/h7 m/s15 mph(gusts 521432)49%14hSundayClear49%SE 24 km/h7 m/s15 mph (gusts 521432)14h
Sunday
SE 24 km/h7 m/s15 mph(gusts 521432)49%14h
Sunday
Clear
49%
SE 24 km/h7 m/s15 mph (gusts 521432)
14h
Night25°C77°F
25°C77°FMorning28°C83°F
28°C83°FAfternoon28°C83°F
28°C83°FEvening42°C107°F
42°C107°F06:1714.5h20:49
MondayN 42 km/h12 m/s26 mph(gusts 691943)60%12hMondayOvercast60%N 42 km/h12 m/s26 mph (gusts 691943)12h
Monday
N 42 km/h12 m/s26 mph(gusts 691943)60%12h
Monday
Overcast
60%
N 42 km/h12 m/s26 mph (gusts 691943)
12h
Night30°C85°F
30°C85°FMorning24°C76°F
24°C76°FAfternoon24°C76°F
24°C76°FEvening24°C75°F
24°C75°F06:1814.5h20:48
Sunrise
06:03
Civil Dawn 05:33
Sunset
21:03
Civil Dusk 21:33
Today vs. seasonal normal
-3.2°C-5.8°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 26°C with Partly cloudy. The high is 26°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 14°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: 07/19/2026, 11:00 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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