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Next week to bring another uptick in temps, humidity in the Northeast. Get the forecast. Chevron right

Lemmon, SD

89°F
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Lemmon

South Dakota

89°
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Lemmon, SD Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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August

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
26
Sunshine and a few clouds
84°
60°
27
Sunny
91°
55°
28
Mostly sunny
84°
59°
29
Sunny
89°
64°
30
Plenty of sunshine
92°
65°
31
A t-storm around in the p.m.
93°
63°
1
A couple of t-storms; warm
94°
54°
2
A shower and thunderstorm
87°
58°
3
A couple of afternoon showers
84°
58°
4
A.M. t-storms; cloudy, humid
83°
57°
5
Sun and some clouds
84°
55°
6
A little afternoon rain
82°
55°
7
Times of clouds and sun
83°
56°
8
Times of clouds and sun
82°
56°
9
Times of clouds and sun
85°
61°
10
Partly sunny
88°
64°
11
Sunshine and very warm
91°
63°
12
Partly sunny and very warm
92°
61°
13
Times of clouds and sun
88°
62°
14
A couple of t-storms; humid
90°
53°
15
A couple of morning t-storms
83°
53°
16
Sun breaking through at times
81°
55°
17
Plenty of sunshine
83°
58°
18
Plenty of sunshine
88°
57°
19
A few morning showers
82°
54°
20
Partly sunny, a stray t-storm
88°
57°
21
Partly sunny
88°
58°
22
A t-storm around in the p.m.
87°
55°
23
Becoming cloudy
88°
55°
24
Partly sunny and less humid
80°
51°
25
Mainly cloudy
79°
55°
26
Sunny much of the time
83°
59°
27
A t-storm around in the p.m.
86°
58°
28
Humid; an a.m. t-storm or two
80°
50°
29
Mostly sunny and less humid
85°
49°
30
A few morning showers
77°
48°
31
A little rain in the morning
76°
49°
1
Rain in the morning; clouds
75°
55°
2
A t-storm around in the p.m.
78°
51°
3
Partly sunny
81°
57°
4
Sunny
82°
56°
5
Glimpses of blue sky
85°
57°

Temperature Graph

°F
100° 88° 76° 64° 52° Aug
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

August Weather in Lemmon

Lemmon's August 2026 forecast shows daily high temperatures ranging from 75° to 94°, with overnight lows between 48° and 65°. The average high for August is 85° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Lemmon. See also: September | October | November.

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Weather Near Lemmon:

  • Rapid City, SD
  • Sheridan, WY
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