Monthly outlook for Mission Hill, SD: average high 85.7°, average low 66.4°. That is 1.6° above the climate normal for August. Precipitation is expected on 9 days (about 4.0 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 11 August (97.8°), the coolest 13 August (60.4°).
85.7°/66.4°
Average high / low
+1.6°
Above normal
9 / 5
Wet days / normal
4.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
84.8°
82.7°
+1.2°
19 August – 28 August
87.1°
82.8°
+2.4°
29 August – 7 September
at normal
81.1°
—
August records over 66 years
105.1°30 August 2012All-time high
46.9°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Gayville (6 mi).
Mon, 1091° / 66°0.28
91 °
Mission Hill, Monday, 10 August
Rain. High 91°, low 66°.
Pressure29.85 inHg
Wind11.4 mph SE
Humidity36%
Visibility6.2 mi
Dew point59°
Tue, 1198° / 67°0.07
98 °
Mission Hill, Tuesday, 11 August
Light rain. High 98°, low 67°.
Pressure29.77 inHg
Wind12.2 mph NE
Humidity43%
Visibility6.2 mi
Dew point64°
Wed, 1291° / 66°0.26
91 °
Mission Hill, Wednesday, 12 August
Rain. High 91°, low 66°.
Pressure29.85 inHg
Wind9.8 mph E
Humidity49%
Visibility6.2 mi
Dew point64°
Thu, 1375° / 60°1.64
75 °
Mission Hill, Thursday, 13 August
Heavy rain. High 75°, low 60°.
Pressure30.03 inHg
Wind13.5 mph NE
Humidity95%
Visibility—
Dew point60°
Fri, 1465° / 61°0.19
65 °
Mission Hill, Friday, 14 August
Light rain. High 65°, low 61°.
Pressure30.12 inHg
Wind11.2 mph E
Humidity95%
Visibility—
Dew point61°
Sat, 1575° / 61°0
75 °
Mission Hill, Saturday, 15 August
Overcast. High 75°, low 61°.
Pressure30.12 inHg
Wind8.9 mph SE
Humidity84%
Visibility—
Dew point62°
Sun, 1683° / 66°0
83 °
Mission Hill, Sunday, 16 August
Overcast. High 83°, low 66°.
Pressure30.15 inHg
Wind3.7 mph N
Humidity64%
Visibility—
Dew point64°
Mon, 1786° / 65°0.03
86 °
Mission Hill, Monday, 17 August
Light rain. High 86°, low 65°.
Pressure29.97 inHg
Wind14 mph SE
Humidity57%
Visibility—
Dew point66°
Tue, 1897° / 70°0
97 °
Mission Hill, Tuesday, 18 August
Partly cloudy. High 97°, low 70°.
Pressure29.77 inHg
Wind13.9 mph S
Humidity53%
Visibility—
Dew point68°
Wed, 1993° / 74°0
93 °
Mission Hill, Wednesday, 19 August
Overcast. High 93°, low 74°.
Pressure29.74 inHg
Wind6.9 mph E
Humidity49%
Visibility—
Dew point66°
Thu, 2082° / 68°0.05
82 °
Mission Hill, Thursday, 20 August
Light rain. High 82°, low 68°.
Pressure29.88 inHg
Wind15 mph NE
Humidity56%
Visibility—
Dew point64°
Fri, 2184° / 64°0.09
84 °
Mission Hill, Friday, 21 August
Light rain. High 84°, low 64°.
Pressure29.94 inHg
Wind10.6 mph E
Humidity85%
Visibility—
Dew point66°
Sat, 2294° / 67°0
94 °
Mission Hill, Saturday, 22 August
Overcast. High 94°, low 67°.
Pressure29.71 inHg
Wind12.5 mph SE
Humidity51%
Visibility—
Dew point65°
Sun, 2390° / 71°0.09
90 °
Mission Hill, Sunday, 23 August
Light rain. High 90°, low 71°.
Pressure29.85 inHg
Wind11.8 mph N
Humidity73%
Visibility—
Dew point71°
Mon, 2479° / 66°1.31
79 °
Mission Hill, Monday, 24 August
Heavy rain. High 79°, low 66°.
Pressure29.97 inHg
Wind12.5 mph E
Humidity64%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 65°0.12
83 °
Mission Hill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.12 in
Chance of precipitation27%
Record high98° (1991)
Record low49° (2025)
Wed, 2683° / 66°0.1
83 °
Mission Hill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low66°
Average precipitation0.1 in
Chance of precipitation30%
Record high99° (1973)
Record low54° (1985)
Thu, 2782° / 65°0.09
82 °
Mission Hill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation30%
Record high98° (1990)
Record low51° (1986)
Fri, 2883° / 65°0.11
83 °
Mission Hill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.11 in
Chance of precipitation27%
Record high101° (1984)
Record low47° (1986)
Sat, 2983° / 64°0.06
83 °
Mission Hill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.06 in
Chance of precipitation20%
Record high102° (2012)
Record low53° (2018)
Sun, 3082° / 64°0.07
82 °
Mission Hill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.07 in
Chance of precipitation25%
Record high105° (2012)
Record low51° (2009)
Mon, 3181° / 64°0.12
81 °
Mission Hill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.12 in
Chance of precipitation28%
Record high93° (1990)
Record low49° (1965)
Tue, 0181° / 64°0.06
81 °
Mission Hill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.06 in
Chance of precipitation20%
Record high96° (1970)
Record low47° (1965)
Wed, 0282° / 63°0.09
82 °
Mission Hill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low63°
Average precipitation0.09 in
Chance of precipitation30%
Record high100° (2023)
Record low50° (1972)
Thu, 0381° / 63°0.1
81 °
Mission Hill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.1 in
Chance of precipitation25%
Record high99° (2023)
Record low42° (1974)
Fri, 0481° / 63°0.11
81 °
Mission Hill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.11 in
Chance of precipitation23%
Record high98° (2023)
Record low48° (1962)
Sat, 0580° / 63°0.07
80 °
Mission Hill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.07 in
Chance of precipitation25%
Record high96° (1990)
Record low45° (1962)
Sun, 0681° / 62°0.03
81 °
Mission Hill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.03 in
Chance of precipitation12%
Record high100° (1970)
Record low44° (2025)
Mon, 0780° / 61°0.07
80 °
Mission Hill, Monday, 7 September
Climate normal for this date — 60-year average.
Average high80°
Average low61°
Average precipitation0.07 in
Chance of precipitation22%
Record high95° (1978)
Record low44° (1986)
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 Mission Hill, 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 Mission Hill, 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.