Monthly outlook for Mayfield, SD: average high 64.2°, average low 47.4°. That is 2.4° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 21 October (79.8°), the coolest 26 October (36.2°).
64.2°/47.4°
Average high / low
+2.4°
Above normal
5 / 3
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
67.6°
61.1°
+3.6°
22 October – 31 October
58.6°
56.5°
+1.2°
1 November – 10 November
at normal
51°
—
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).
Tue, 1360° / 45°0
60 °
Mayfield, Tuesday, 13 October
Partly cloudy. High 60°, low 45°.
Pressure30.03 inHg
Wind9 mph N
Humidity52%
Visibility6.2 mi
Dew point39°
Wed, 1463° / 46°0
63 °
Mayfield, Wednesday, 14 October
Clear. High 63°, low 46°.
Pressure30.24 inHg
Wind5.9 mph NE
Humidity50%
Visibility6.2 mi
Dew point39°
Thu, 1561° / 52°0.11
61 °
Mayfield, Thursday, 15 October
Rain. High 61°, low 52°.
Pressure30.24 inHg
Wind11.4 mph N
Humidity54%
Visibility6.2 mi
Dew point42°
Fri, 1657° / 43°0
57 °
Mayfield, Friday, 16 October
Clear. High 57°, low 43°.
Pressure30.71 inHg
Wind17.9 mph N
Humidity44%
Visibility—
Dew point31°
Sat, 1763° / 41°0
63 °
Mayfield, Saturday, 17 October
Overcast. High 63°, low 41°.
Pressure30.21 inHg
Wind17.2 mph S
Humidity36%
Visibility—
Dew point30°
Sun, 1869° / 45°0
69 °
Mayfield, Sunday, 18 October
Clear. High 69°, low 45°.
Pressure29.94 inHg
Wind15.5 mph S
Humidity34%
Visibility—
Dew point33°
Mon, 1969° / 48°0
69 °
Mayfield, Monday, 19 October
Mostly clear. High 69°, low 48°.
Pressure30.03 inHg
Wind8 mph SE
Humidity51%
Visibility—
Dew point44°
Tue, 2074° / 51°0
74 °
Mayfield, Tuesday, 20 October
Clear. High 74°, low 51°.
Pressure30.03 inHg
Wind14.5 mph SE
Humidity60%
Visibility—
Dew point53°
Wed, 2180° / 60°0.15
80 °
Mayfield, Wednesday, 21 October
Light rain. High 80°, low 60°.
Pressure29.97 inHg
Wind20.4 mph S
Humidity53%
Visibility—
Dew point56°
Thu, 2268° / 61°0.57
68 °
Mayfield, Thursday, 22 October
Rain. High 68°, low 61°.
Pressure30.00 inHg
Wind15.6 mph S
Humidity82%
Visibility—
Dew point62°
Fri, 2361° / 49°0
61 °
Mayfield, Friday, 23 October
Clear. High 61°, low 49°.
Pressure30.45 inHg
Wind10.6 mph NE
Humidity34%
Visibility—
Dew point30°
Sat, 2457° / 46°0.29
57 °
Mayfield, Saturday, 24 October
Rain. High 57°, low 46°.
Pressure30.03 inHg
Wind17.6 mph SE
Humidity66%
Visibility—
Dew point42°
Sun, 2559° / 47°0.83
59 °
Mayfield, Sunday, 25 October
Heavy rain. High 59°, low 47°.
Pressure30.03 inHg
Wind25.6 mph NW
Humidity72%
Visibility—
Dew point43°
Mon, 2652° / 36°0
52 °
Mayfield, Monday, 26 October
Clear. High 52°, low 36°.
Pressure30.18 inHg
Wind10.7 mph NW
Humidity48%
Visibility—
Dew point29°
Tue, 2754° / 37°0
54 °
Mayfield, Tuesday, 27 October
Mostly clear. High 54°, low 37°.
Pressure30.06 inHg
Wind3.6 mph W
Humidity38%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 0851° / 35°0.05
51 °
Mayfield, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.05 in
Chance of precipitation13%
Record high79° (1999)
Record low-2° (1991)
Mon, 0949° / 34°0.12
49 °
Mayfield, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.12 in
Chance of precipitation23%
Record high73° (1999)
Record low15° (2018)
Tue, 1047° / 31°0.07
47 °
Mayfield, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.07 in
Chance of precipitation22%
Record high67° (2016)
Record low8° (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 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.