Monthly outlook for Mayfield, SD: average high 64°, average low 47.9°. That is 1.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 10 October (84.4°), the coolest 24 October (30°).
64°/47.9°
Average high / low
+1.5°
Above normal
2 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
66.2°
62.2°
+2.2°
19 October – 28 October
60.4°
58.6°
+1°
29 October – 7 November
at normal
52.7°
—
October records over 66 years
93°3 October 2025All-time high
5°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Yankton (14 mi).
Sat, 1084° / 65°0
84 °
Mayfield, Saturday, 10 October
Clear. High 84°, low 65°.
Pressure29.68 inHg
Wind16.3 mph S
Humidity42%
Visibility6.2 mi
Dew point54°
Sun, 1183° / 64°0
83 °
Mayfield, Sunday, 11 October
Overcast. High 83°, low 64°.
Pressure29.68 inHg
Wind10.6 mph S
Humidity44%
Visibility6.2 mi
Dew point54°
Mon, 1274° / 56°0
74 °
Mayfield, Monday, 12 October
Clear. High 74°, low 56°.
Pressure29.74 inHg
Wind10.9 mph N
Humidity64%
Visibility6.2 mi
Dew point53°
Tue, 1360° / 52°0
60 °
Mayfield, Tuesday, 13 October
Overcast. High 60°, low 52°.
Pressure30.06 inHg
Wind12.8 mph NW
Humidity60%
Visibility—
Dew point43°
Wed, 1462° / 51°0.26
62 °
Mayfield, Wednesday, 14 October
Rain. High 62°, low 51°.
Pressure30.06 inHg
Wind10.5 mph E
Humidity58%
Visibility—
Dew point45°
Thu, 1563° / 54°0.37
63 °
Mayfield, Thursday, 15 October
Rain. High 63°, low 54°.
Pressure29.83 inHg
Wind21.1 mph NW
Humidity90%
Visibility—
Dew point59°
Fri, 1648° / 39°0
48 °
Mayfield, Friday, 16 October
Overcast. High 48°, low 39°.
Pressure30.18 inHg
Wind28.3 mph NW
Humidity45%
Visibility—
Dew point26°
Sat, 1748° / 31°0
48 °
Mayfield, Saturday, 17 October
Clear. High 48°, low 31°.
Pressure30.50 inHg
Wind17.1 mph NW
Humidity32%
Visibility—
Dew point14°
Sun, 1861° / 41°0
61 °
Mayfield, Sunday, 18 October
Partly cloudy. High 61°, low 41°.
Pressure30.12 inHg
Wind15.6 mph S
Humidity30%
Visibility—
Dew point25°
Mon, 1965° / 44°0
65 °
Mayfield, Monday, 19 October
Overcast. High 65°, low 44°.
Pressure30.12 inHg
Wind11.6 mph SE
Humidity33%
Visibility—
Dew point30°
Tue, 2070° / 47°0
70 °
Mayfield, Tuesday, 20 October
Overcast. High 70°, low 47°.
Pressure30.00 inHg
Wind16.3 mph S
Humidity33%
Visibility—
Dew point34°
Wed, 2165° / 54°0
65 °
Mayfield, Wednesday, 21 October
Overcast. High 65°, low 54°.
Pressure30.09 inHg
Wind13.7 mph N
Humidity44%
Visibility—
Dew point40°
Thu, 2261° / 49°0
61 °
Mayfield, Thursday, 22 October
Partly cloudy. High 61°, low 49°.
Pressure29.97 inHg
Wind25 mph NW
Humidity32%
Visibility—
Dew point29°
Fri, 2348° / 38°0
48 °
Mayfield, Friday, 23 October
Clear. High 48°, low 38°.
Pressure30.30 inHg
Wind23.2 mph NW
Humidity36%
Visibility—
Dew point19°
Sat, 2453° / 30°0
53 °
Mayfield, Saturday, 24 October
Mostly clear. High 53°, low 30°.
Pressure30.27 inHg
Wind10.6 mph S
Humidity34%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2557° / 41°0.05
57 °
Mayfield, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.05 in
Chance of precipitation17%
Record high79° (1989)
Record low23° (2020)
Mon, 2658° / 40°0.03
58 °
Mayfield, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.03 in
Chance of precipitation15%
Record high78° (1989)
Record low11° (2020)
Tue, 2756° / 40°0.07
56 °
Mayfield, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.07 in
Chance of precipitation20%
Record high81° (1999)
Record low5° (2020)
Wed, 2856° / 39°0.03
56 °
Mayfield, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.03 in
Chance of precipitation15%
Record high80° (2016)
Record low22° (2017)
Thu, 2955° / 39°0.07
55 °
Mayfield, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.07 in
Chance of precipitation23%
Record high73° (1990)
Record low23° (1991)
Fri, 3054° / 39°0.15
54 °
Mayfield, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.15 in
Chance of precipitation27%
Record high73° (1965)
Record low18° (1991)
Sat, 3154° / 37°0.06
54 °
Mayfield, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.06 in
Chance of precipitation25%
Record high76° (1990)
Record low15° (2002)
Sun, 0153° / 37°0.06
53 °
Mayfield, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation15%
Record high74° (1990)
Record low16° (2002)
Mon, 0252° / 37°0.04
52 °
Mayfield, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.04 in
Chance of precipitation15%
Record high76° (2005)
Record low11° (1991)
Tue, 0352° / 36°0.06
52 °
Mayfield, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.06 in
Chance of precipitation23%
Record high74° (1978)
Record low6° (1991)
Wed, 0452° / 35°0.02
52 °
Mayfield, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.02 in
Chance of precipitation12%
Record high73° (1975)
Record low-6° (1991)
Thu, 0553° / 36°0.04
53 °
Mayfield, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.04 in
Chance of precipitation20%
Record high74° (2001)
Record low12° (1990)
Fri, 0652° / 35°0.03
52 °
Mayfield, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.03 in
Chance of precipitation12%
Record high76° (2020)
Record low9° (1991)
Sat, 0752° / 35°0.02
52 °
Mayfield, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.02 in
Chance of precipitation12%
Record high74° (2001)
Record low-9° (1991)
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 Mayfield, 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 Mayfield, 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.