Monthly outlook for Wessington Springs, SD: average high 85.9°, average low 64.2°. That is 1.5° above the climate normal for August. Precipitation is expected on 5 days (about 4.5 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 24 August (96.7°), the coolest 19 August (60.6°).
85.9°/64.2°
Average high / low
+1.5°
Above normal
5 / 4
Wet days / normal
4.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
84.3°
83.2°
+0.6°
19 August – 28 August
88.5°
83.2°
+3°
29 August – 7 September
at normal
81.1°
—
August records over 66 years
106.5°13 August 1965All-time high
46.2°27 August 1992All-time low
Climate normals and records are computed from the nearest reference point — Alpena (12 mi).
Mon, 1087° / 62°1.05
87 °
Wessington Springs, Monday, 10 August
Heavy rain. High 87°, low 62°.
Pressure29.85 inHg
Wind4.7 mph NE
Humidity53%
Visibility6.2 mi
Dew point65°
Tue, 1190° / 64°0.01
90 °
Wessington Springs, Tuesday, 11 August
Light rain. High 90°, low 64°.
Pressure29.83 inHg
Wind12 mph NE
Humidity52%
Visibility6.2 mi
Dew point62°
Wed, 1291° / 66°0.04
91 °
Wessington Springs, Wednesday, 12 August
Light rain. High 91°, low 66°.
Pressure29.85 inHg
Wind9.6 mph E
Humidity44%
Visibility6.2 mi
Dew point59°
Thu, 1379° / 64°1.39
79 °
Wessington Springs, Thursday, 13 August
Heavy rain. High 79°, low 64°.
Pressure29.97 inHg
Wind7.5 mph E
Humidity65%
Visibility6.2 mi
Dew point62°
Fri, 1472° / 61°0.55
72 °
Wessington Springs, Friday, 14 August
Rain. High 72°, low 61°.
Pressure30.03 inHg
Wind15.1 mph SE
Humidity63%
Visibility—
Dew point57°
Sat, 1578° / 65°0.19
78 °
Wessington Springs, Saturday, 15 August
Rain. High 78°, low 65°.
Pressure30.06 inHg
Wind8.4 mph SE
Humidity80%
Visibility—
Dew point65°
Sun, 1684° / 63°0
84 °
Wessington Springs, Sunday, 16 August
Overcast. High 84°, low 63°.
Pressure30.18 inHg
Wind7.7 mph SE
Humidity53%
Visibility—
Dew point59°
Mon, 1784° / 65°0.02
84 °
Wessington Springs, Monday, 17 August
Light rain. High 84°, low 65°.
Pressure29.94 inHg
Wind17.6 mph S
Humidity58%
Visibility—
Dew point64°
Tue, 1891° / 65°1.22
91 °
Wessington Springs, Tuesday, 18 August
Heavy rain. High 91°, low 65°.
Pressure29.74 inHg
Wind18.3 mph NW
Humidity38%
Visibility—
Dew point59°
Wed, 1980° / 61°0
80 °
Wessington Springs, Wednesday, 19 August
Mostly clear. High 80°, low 61°.
Pressure30.03 inHg
Wind9.9 mph N
Humidity53%
Visibility—
Dew point56°
Thu, 2090° / 63°0
90 °
Wessington Springs, Thursday, 20 August
Partly cloudy. High 90°, low 63°.
Pressure29.85 inHg
Wind12.4 mph S
Humidity45%
Visibility—
Dew point58°
Fri, 2191° / 70°0
91 °
Wessington Springs, Friday, 21 August
Partly cloudy. High 91°, low 70°.
Pressure29.71 inHg
Wind12.4 mph W
Humidity37%
Visibility—
Dew point56°
Sat, 2284° / 63°0
84 °
Wessington Springs, Saturday, 22 August
Mostly clear. High 84°, low 63°.
Pressure30.03 inHg
Wind11.8 mph N
Humidity33%
Visibility—
Dew point47°
Sun, 2388° / 64°0
88 °
Wessington Springs, Sunday, 23 August
Overcast. High 88°, low 64°.
Pressure30.09 inHg
Wind11 mph S
Humidity36%
Visibility—
Dew point50°
Mon, 2497° / 67°0
97 °
Wessington Springs, Monday, 24 August
Clear. High 97°, low 67°.
Pressure29.94 inHg
Wind13.5 mph S
Humidity35%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 64°0.06
83 °
Wessington Springs, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.06 in
Chance of precipitation20%
Record high99° (1991)
Record low49° (2025)
Wed, 2683° / 64°0.08
83 °
Wessington Springs, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.08 in
Chance of precipitation25%
Record high100° (1970)
Record low47° (1992)
Thu, 2783° / 63°0.04
83 °
Wessington Springs, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low63°
Average precipitation0.04 in
Chance of precipitation22%
Record high99° (1973)
Record low46° (1992)
Fri, 2883° / 64°0.11
83 °
Wessington Springs, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.11 in
Chance of precipitation32%
Record high98° (2012)
Record low47° (1986)
Sat, 2983° / 63°0.06
83 °
Wessington Springs, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low63°
Average precipitation0.06 in
Chance of precipitation22%
Record high101° (2012)
Record low49° (1988)
Sun, 3082° / 62°0.09
82 °
Wessington Springs, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low62°
Average precipitation0.09 in
Chance of precipitation23%
Record high96° (1961)
Record low50° (2009)
Mon, 3182° / 63°0.06
82 °
Wessington Springs, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low63°
Average precipitation0.06 in
Chance of precipitation20%
Record high94° (2013)
Record low48° (1992)
Tue, 0181° / 62°0.08
81 °
Wessington Springs, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.08 in
Chance of precipitation20%
Record high98° (1970)
Record low45° (1965)
Wed, 0282° / 62°0.09
82 °
Wessington Springs, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low62°
Average precipitation0.09 in
Chance of precipitation23%
Record high101° (1983)
Record low47° (1974)
Thu, 0381° / 62°0.05
81 °
Wessington Springs, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.05 in
Chance of precipitation15%
Record high98° (2023)
Record low41° (1974)
Fri, 0481° / 62°0.1
81 °
Wessington Springs, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.1 in
Chance of precipitation15%
Record high100° (2023)
Record low45° (1962)
Sat, 0580° / 62°0.08
80 °
Wessington Springs, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.08 in
Chance of precipitation20%
Record high98° (1978)
Record low43° (1965)
Sun, 0681° / 60°0.06
81 °
Wessington Springs, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high81°
Average low60°
Average precipitation0.06 in
Chance of precipitation22%
Record high101° (1970)
Record low44° (2025)
Mon, 0778° / 59°0.12
78 °
Wessington Springs, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low59°
Average precipitation0.12 in
Chance of precipitation27%
Record high96° (1978)
Record low41° (2025)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Wessington Springs, SD are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Wessington Springs, SD since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.