Monthly outlook for Midway, SD: average high 88.2°, average low 61.7°. That is 3.1° above the climate normal for August. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 August (103.4°), the coolest 21 August (53.2°).
88.2°/61.7°
Average high / low
+3.1°
Above normal
6 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
89.5°
82.6°
+3.8°
19 August – 28 August
86.1°
82.7°
+1.9°
29 August – 7 September
at normal
80.8°
—
August records over 66 years
105.8°13 August 1965All-time high
46.4°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Menno (12 mi).
Mon, 10103° / 67°0.1
103 °
Midway, Monday, 10 August
Rain. High 103°, low 67°.
Pressure29.77 inHg
Wind11 mph E
Humidity46%
Visibility6.2 mi
Dew point67°
Tue, 1199° / 65°0.01
99 °
Midway, Tuesday, 11 August
Light rain. High 99°, low 65°.
Pressure29.80 inHg
Wind10.4 mph NE
Humidity41%
Visibility6.2 mi
Dew point63°
Wed, 1292° / 66°0.29
92 °
Midway, Wednesday, 12 August
Rain. High 92°, low 66°.
Pressure29.88 inHg
Wind7.5 mph E
Humidity48%
Visibility6.2 mi
Dew point63°
Thu, 1376° / 62°0.28
76 °
Midway, Thursday, 13 August
Rain. High 76°, low 62°.
Pressure30.00 inHg
Wind15.5 mph NE
Humidity87%
Visibility—
Dew point61°
Fri, 1482° / 58°0.02
82 °
Midway, Friday, 14 August
Light rain. High 82°, low 58°.
Pressure30.09 inHg
Wind13 mph S
Humidity41%
Visibility—
Dew point52°
Sat, 1576° / 64°0
76 °
Midway, Saturday, 15 August
Overcast. High 76°, low 64°.
Pressure30.15 inHg
Wind11 mph SE
Humidity63%
Visibility—
Dew point60°
Sun, 1683° / 62°0.01
83 °
Midway, Sunday, 16 August
Light rain. High 83°, low 62°.
Pressure30.06 inHg
Wind8.5 mph SW
Humidity62%
Visibility—
Dew point62°
Mon, 1794° / 63°0
94 °
Midway, Monday, 17 August
Overcast. High 94°, low 63°.
Pressure29.97 inHg
Wind15.1 mph S
Humidity48%
Visibility—
Dew point63°
Tue, 18100° / 63°0.03
100 °
Midway, Tuesday, 18 August
Light rain. High 100°, low 63°.
Pressure29.91 inHg
Wind8 mph W
Humidity31%
Visibility—
Dew point55°
Wed, 1984° / 60°0.08
84 °
Midway, Wednesday, 19 August
Light rain. High 84°, low 60°.
Pressure30.09 inHg
Wind18.5 mph NE
Humidity36%
Visibility—
Dew point47°
Thu, 2066° / 56°0.14
66 °
Midway, Thursday, 20 August
Light rain. High 66°, low 56°.
Pressure30.15 inHg
Wind10.6 mph SE
Humidity94%
Visibility—
Dew point55°
Fri, 2182° / 53°0.02
82 °
Midway, Friday, 21 August
Light rain. High 82°, low 53°.
Pressure29.94 inHg
Wind18.1 mph S
Humidity35%
Visibility—
Dew point46°
Sat, 2294° / 61°0.01
94 °
Midway, Saturday, 22 August
Light rain. High 94°, low 61°.
Pressure29.80 inHg
Wind14.1 mph NW
Humidity31%
Visibility—
Dew point51°
Sun, 2392° / 60°0.04
92 °
Midway, Sunday, 23 August
Light rain. High 92°, low 60°.
Pressure29.94 inHg
Wind6.5 mph N
Humidity21%
Visibility—
Dew point39°
Mon, 2498° / 60°0.13
98 °
Midway, Monday, 24 August
Light rain. High 98°, low 60°.
Pressure29.74 inHg
Wind17.9 mph S
Humidity28%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 64°0.13
83 °
Midway, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.13 in
Chance of precipitation22%
Record high99° (1991)
Record low49° (1964)
Wed, 2683° / 65°0.09
83 °
Midway, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.09 in
Chance of precipitation28%
Record high99° (1973)
Record low54° (1992)
Thu, 2782° / 64°0.09
82 °
Midway, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.09 in
Chance of precipitation33%
Record high97° (1984)
Record low49° (1986)
Fri, 2882° / 64°0.1
82 °
Midway, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.1 in
Chance of precipitation27%
Record high102° (2012)
Record low46° (1986)
Sat, 2983° / 64°0.07
83 °
Midway, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low64°
Average precipitation0.07 in
Chance of precipitation20%
Record high104° (2012)
Record low52° (2018)
Sun, 3082° / 63°0.07
82 °
Midway, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low63°
Average precipitation0.07 in
Chance of precipitation22%
Record high103° (2012)
Record low50° (2009)
Mon, 3181° / 64°0.11
81 °
Midway, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation28%
Record high92° (1988)
Record low49° (1965)
Tue, 0180° / 63°0.07
80 °
Midway, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.07 in
Chance of precipitation22%
Record high96° (1970)
Record low46° (1965)
Wed, 0282° / 63°0.07
82 °
Midway, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low63°
Average precipitation0.07 in
Chance of precipitation32%
Record high98° (2023)
Record low45° (1972)
Thu, 0380° / 63°0.09
80 °
Midway, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.09 in
Chance of precipitation25%
Record high98° (2023)
Record low40° (1974)
Fri, 0481° / 62°0.08
81 °
Midway, Friday, 4 September
Climate normal for this date — 60-year average.
Average high81°
Average low62°
Average precipitation0.08 in
Chance of precipitation22%
Record high98° (2023)
Record low46° (1962)
Sat, 0580° / 62°0.07
80 °
Midway, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.07 in
Chance of precipitation27%
Record high96° (1990)
Record low42° (1962)
Sun, 0681° / 61°0.04
81 °
Midway, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high81°
Average low61°
Average precipitation0.04 in
Chance of precipitation15%
Record high100° (1970)
Record low42° (2025)
Mon, 0779° / 60°0.08
79 °
Midway, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low60°
Average precipitation0.08 in
Chance of precipitation25%
Record high94° (1978)
Record low42° (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 Midway, 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 Midway, 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.