Monthly outlook for Hayes, SD: average high 62.9°, average low 45°. That is 3.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (81.7°), the coolest 26 October (33.4°).
62.9°/45°
Average high / low
+3.5°
Above normal
2 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
65.7°
58.6°
+3.9°
27 October – 5 November
58.1°
52.1°
+3.3°
6 November – 15 November
at normal
46.3°
—
October records over 66 years
93.2°3 October 1967All-time high
0.3°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Sansarc (9 mi).
Sun, 1868° / 43°0
68 °
Hayes, Sunday, 18 October
Clear. High 68°, low 43°.
Pressure30.00 inHg
Wind12.3 mph N
Humidity43%
Visibility6.2 mi
Dew point42°
Mon, 1961° / 44°0
61 °
Hayes, Monday, 19 October
Clear. High 61°, low 44°.
Pressure30.15 inHg
Wind6.8 mph E
Humidity62%
Visibility6.2 mi
Dew point45°
Tue, 2070° / 45°0
70 °
Hayes, Tuesday, 20 October
Clear. High 70°, low 45°.
Pressure30.03 inHg
Wind9.4 mph SE
Humidity61%
Visibility6.2 mi
Dew point50°
Wed, 2167° / 50°0
67 °
Hayes, Wednesday, 21 October
Clear. High 67°, low 50°.
Pressure30.15 inHg
Wind9.4 mph NW
Humidity69%
Visibility—
Dew point51°
Thu, 2273° / 49°0
73 °
Hayes, Thursday, 22 October
Partly cloudy. High 73°, low 49°.
Pressure30.06 inHg
Wind16.5 mph SE
Humidity70%
Visibility—
Dew point54°
Fri, 2382° / 64°0.01
82 °
Hayes, Friday, 23 October
Light rain. High 82°, low 64°.
Pressure29.47 inHg
Wind20.8 mph S
Humidity39%
Visibility—
Dew point51°
Sat, 2459° / 42°0
59 °
Hayes, Saturday, 24 October
Clear. High 59°, low 42°.
Pressure30.03 inHg
Wind26.4 mph W
Humidity47%
Visibility—
Dew point31°
Sun, 2549° / 38°0
49 °
Hayes, Sunday, 25 October
Light rain. High 49°, low 38°.
Pressure30.33 inHg
Wind17.4 mph NW
Humidity31%
Visibility—
Dew point16°
Mon, 2658° / 33°0
58 °
Hayes, Monday, 26 October
Overcast. High 58°, low 33°.
Pressure30.18 inHg
Wind18.6 mph SE
Humidity28%
Visibility—
Dew point17°
Tue, 2764° / 48°0
64 °
Hayes, Tuesday, 27 October
Overcast. High 64°, low 48°.
Pressure29.74 inHg
Wind18.8 mph S
Humidity39%
Visibility—
Dew point33°
Wed, 2854° / 45°0.09
54 °
Hayes, Wednesday, 28 October
Light rain. High 54°, low 45°.
Pressure29.62 inHg
Wind29.2 mph NW
Humidity63%
Visibility—
Dew point41°
Thu, 2970° / 42°0
70 °
Hayes, Thursday, 29 October
Mostly clear. High 70°, low 42°.
Pressure29.88 inHg
Wind10.9 mph S
Humidity27%
Visibility—
Dew point24°
Fri, 3058° / 51°0
58 °
Hayes, Friday, 30 October
Overcast. High 58°, low 51°.
Pressure29.56 inHg
Wind15 mph N
Humidity36%
Visibility—
Dew point30°
Sat, 3150° / 45°0.08
50 °
Hayes, Saturday, 31 October
Light rain. High 50°, low 45°.
Pressure29.59 inHg
Wind24.6 mph NW
Humidity45%
Visibility—
Dew point27°
Sun, 0153° / 38°0
53 °
Hayes, Sunday, 1 November
Clear. High 53°, low 38°.
Pressure29.97 inHg
Wind15.4 mph NW
Humidity29%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0251° / 34°0.02
51 °
Hayes, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.02 in
Chance of precipitation10%
Record high77° (2022)
Record low5° (1991)
Tue, 0350° / 35°0.04
50 °
Hayes, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation17%
Record high71° (1978)
Record low3° (1991)
Wed, 0451° / 33°0.01
51 °
Hayes, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.01 in
Chance of precipitation8%
Record high79° (1978)
Record low8° (1991)
Thu, 0551° / 33°0.05
51 °
Hayes, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.05 in
Chance of precipitation18%
Record high73° (1975)
Record low6° (2003)
Fri, 0650° / 32°0.03
50 °
Hayes, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.03 in
Chance of precipitation13%
Record high74° (2020)
Record low4° (2003)
Sat, 0750° / 31°0.04
50 °
Hayes, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high71° (1999)
Record low-1° (1971)
Sun, 0849° / 32°0.07
49 °
Hayes, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.07 in
Chance of precipitation15%
Record high78° (1999)
Record low10° (2000)
Mon, 0945° / 30°0.04
45 °
Hayes, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.04 in
Chance of precipitation20%
Record high68° (2016)
Record low5° (2000)
Tue, 1045° / 28°0.05
45 °
Hayes, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.05 in
Chance of precipitation23%
Record high68° (1989)
Record low-3° (1986)
Wed, 1143° / 27°0.02
43 °
Hayes, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high68° (2005)
Record low-10° (1986)
Thu, 1245° / 28°0.03
45 °
Hayes, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.03 in
Chance of precipitation15%
Record high70° (2016)
Record low-5° (1986)
Fri, 1346° / 29°0.03
46 °
Hayes, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high72° (1990)
Record low-16° (1986)
Sat, 1445° / 29°0.02
45 °
Hayes, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.02 in
Chance of precipitation12%
Record high69° (2025)
Record low-2° (2014)
Sun, 1544° / 28°0.02
44 °
Hayes, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.02 in
Chance of precipitation17%
Record high64° (2001)
Record low4° (2014)
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 Hayes, 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 Hayes, 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.