Monthly outlook for Ferney, SD: average high 59.7°, average low 43.9°. That is 1.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 10 October (87.2°), the coolest 17 October (25.3°).
59.7°/43.9°
Average high / low
+1.4°
Above normal
5 / 3
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
60.6°
58.2°
+1.3°
19 October – 28 October
58.2°
54.6°
+2°
29 October – 7 November
at normal
48.3°
—
October records over 66 years
87.6°3 October 2025All-time high
0.1°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Groton (8 mi).
Sat, 1087° / 59°0
87 °
Ferney, Saturday, 10 October
Clear. High 87°, low 59°.
Pressure29.50 inHg
Wind18.3 mph S
Humidity36%
Visibility6.2 mi
Dew point50°
Sun, 1167° / 50°0
67 °
Ferney, Sunday, 11 October
Overcast. High 67°, low 50°.
Pressure29.74 inHg
Wind13.8 mph NE
Humidity64%
Visibility6.2 mi
Dew point54°
Mon, 1255° / 49°0.39
55 °
Ferney, Monday, 12 October
Heavy rain. High 55°, low 49°.
Pressure29.88 inHg
Wind6.7 mph N
Humidity91%
Visibility1.4 mi
Dew point48°
Tue, 1355° / 47°0
55 °
Ferney, Tuesday, 13 October
Overcast. High 55°, low 47°.
Pressure30.09 inHg
Wind7.2 mph N
Humidity69%
Visibility6.2 mi
Dew point41°
Wed, 1459° / 47°0
59 °
Ferney, Wednesday, 14 October
Mostly clear. High 59°, low 47°.
Pressure30.30 inHg
Wind5.1 mph N
Humidity52%
Visibility—
Dew point38°
Thu, 1558° / 43°0.08
58 °
Ferney, Thursday, 15 October
Light rain. High 58°, low 43°.
Pressure30.24 inHg
Wind10.4 mph W
Humidity65%
Visibility—
Dew point44°
Fri, 1648° / 35°0.15
48 °
Ferney, Friday, 16 October
Snow. High 48°, low 35°.
Pressure30.03 inHg
Wind27.3 mph NW
Humidity78%
Visibility—
Dew point34°
Sat, 1742° / 25°0
42 °
Ferney, Saturday, 17 October
Clear. High 42°, low 25°.
Pressure30.56 inHg
Wind16.6 mph S
Humidity45%
Visibility—
Dew point17°
Sun, 1858° / 38°0
58 °
Ferney, Sunday, 18 October
Overcast. High 58°, low 38°.
Pressure30.00 inHg
Wind20.9 mph S
Humidity36%
Visibility—
Dew point24°
Mon, 1963° / 40°0
63 °
Ferney, Monday, 19 October
Overcast. High 63°, low 40°.
Pressure30.12 inHg
Wind14.4 mph SE
Humidity34%
Visibility—
Dew point28°
Tue, 2063° / 50°0.06
63 °
Ferney, Tuesday, 20 October
Light rain. High 63°, low 50°.
Pressure29.80 inHg
Wind17.8 mph S
Humidity63%
Visibility—
Dew point45°
Wed, 2161° / 50°0.01
61 °
Ferney, Wednesday, 21 October
Light rain. High 61°, low 50°.
Pressure29.85 inHg
Wind13.1 mph N
Humidity62%
Visibility—
Dew point46°
Thu, 2260° / 43°0
60 °
Ferney, Thursday, 22 October
Clear. High 60°, low 43°.
Pressure29.97 inHg
Wind7.4 mph SE
Humidity47%
Visibility—
Dew point35°
Fri, 2351° / 45°0.34
51 °
Ferney, Friday, 23 October
Rain. High 51°, low 45°.
Pressure29.94 inHg
Wind14.8 mph NW
Humidity92%
Visibility—
Dew point44°
Sat, 2452° / 36°0
52 °
Ferney, Saturday, 24 October
Mostly clear. High 52°, low 36°.
Pressure30.12 inHg
Wind11.8 mph NW
Humidity52%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2554° / 37°0.04
54 °
Ferney, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.04 in
Chance of precipitation17%
Record high79° (1989)
Record low15° (2020)
Mon, 2654° / 37°0.03
54 °
Ferney, Monday, 26 October
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.03 in
Chance of precipitation13%
Record high77° (1989)
Record low0° (2020)
Tue, 2753° / 37°0.04
53 °
Ferney, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.04 in
Chance of precipitation25%
Record high69° (1966)
Record low7° (2020)
Wed, 2852° / 36°0.03
52 °
Ferney, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.03 in
Chance of precipitation18%
Record high71° (2016)
Record low18° (2017)
Thu, 2951° / 35°0.08
51 °
Ferney, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.08 in
Chance of precipitation32%
Record high67° (2007)
Record low18° (2020)
Fri, 3050° / 35°0.07
50 °
Ferney, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.07 in
Chance of precipitation25%
Record high70° (1965)
Record low16° (1991)
Sat, 3150° / 33°0.06
50 °
Ferney, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.06 in
Chance of precipitation18%
Record high73° (2016)
Record low18° (2019)
Sun, 0149° / 34°0.05
49 °
Ferney, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.05 in
Chance of precipitation25%
Record high74° (1990)
Record low14° (1984)
Mon, 0248° / 32°0.03
48 °
Ferney, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.03 in
Chance of precipitation18%
Record high72° (2022)
Record low10° (1991)
Tue, 0347° / 33°0.04
47 °
Ferney, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.04 in
Chance of precipitation15%
Record high72° (1978)
Record low7° (1991)
Wed, 0447° / 31°0.02
47 °
Ferney, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.02 in
Chance of precipitation13%
Record high68° (1978)
Record low6° (1995)
Thu, 0547° / 32°0.03
47 °
Ferney, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.03 in
Chance of precipitation13%
Record high70° (2016)
Record low9° (2003)
Fri, 0646° / 31°0.03
46 °
Ferney, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.03 in
Chance of precipitation15%
Record high73° (2020)
Record low3° (2003)
Sat, 0747° / 30°0.04
47 °
Ferney, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.04 in
Chance of precipitation12%
Record high69° (2020)
Record low3° (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 Ferney, 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 Ferney, 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.