As of 04:19 CDT

Weather in Yankton, SD

36°Current weather

Yankton, Saturday, 17 October, 04:19

Clear. Feels like 32°. High 63°, low 35°.

Pressure30.47 inHg
Wind4.6 mph S
Humidity75%
Visibility6.2 mi
Dew point29°

Monthly outlook for Yankton, SD: average high 63.4°, average low 45.9°. That is 3.2° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 23 October (76.8°), the coolest 26 October (32.9°).

63.4°/45.9°
Average high / low
+3.2°
Above normal
4 / 3
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October64.8°59.4°+3°
27 October – 5 November61.1°53.5°+4.2°
6 November – 15 Novemberat normal48.1°—

October records over 66 years

93°3 October 2025All-time high
5°27 October 2020All-time low
Sun, 1867° / 46°0Clear
67 °Clear

Yankton, Sunday, 18 October

Clear. High 67°, low 46°.

Pressure30.09 inHg
Wind9.7 mph S
Humidity50%
Visibility6.2 mi
Dew point41°
Mon, 1963° / 45°0Overcast
63 °Overcast

Yankton, Monday, 19 October

Overcast. High 63°, low 45°.

Pressure30.18 inHg
Wind7.7 mph SE
Humidity65%
Visibility6.2 mi
Dew point46°
Tue, 2067° / 49°0Clear
67 °Clear

Yankton, Tuesday, 20 October

Clear. High 67°, low 49°.

Pressure30.18 inHg
Wind9.6 mph SE
Humidity64%
Visibility6.2 mi
Dew point49°
Wed, 2171° / 52°0Clear
71 °Clear

Yankton, Wednesday, 21 October

Clear. High 71°, low 52°.

Pressure30.12 inHg
Wind7.5 mph S
Humidity63%
Visibility—
Dew point52°
Thu, 2273° / 50°0Clear
73 °Clear

Yankton, Thursday, 22 October

Clear. High 73°, low 50°.

Pressure30.15 inHg
Wind9.5 mph SE
Humidity69%
Visibility—
Dew point55°
Fri, 2377° / 65°0.28Light rain
77 °Light rain

Yankton, Friday, 23 October

Light rain. High 77°, low 65°.

Pressure29.77 inHg
Wind24.3 mph S
Humidity63%
Visibility—
Dew point59°
Sat, 2468° / 52°0.03Light rain
68 °Light rain

Yankton, Saturday, 24 October

Light rain. High 68°, low 52°.

Pressure29.94 inHg
Wind17.7 mph NW
Humidity45%
Visibility—
Dew point39°
Sun, 2550° / 41°0.25Rain
50 °Rain

Yankton, Sunday, 25 October

Rain. High 50°, low 41°.

Pressure30.24 inHg
Wind18.5 mph NW
Humidity54%
Visibility—
Dew point30°
Mon, 2650° / 33°0Clear
50 °Clear

Yankton, Monday, 26 October

Clear. High 50°, low 33°.

Pressure30.36 inHg
Wind8.5 mph SE
Humidity38%
Visibility—
Dew point20°
Tue, 2752° / 40°0Overcast
52 °Overcast

Yankton, Tuesday, 27 October

Overcast. High 52°, low 40°.

Pressure30.06 inHg
Wind20.3 mph S
Humidity52%
Visibility—
Dew point32°
Wed, 2869° / 48°0.01Light rain
69 °Light rain

Yankton, Wednesday, 28 October

Light rain. High 69°, low 48°.

Pressure29.59 inHg
Wind31.3 mph NW
Humidity42%
Visibility—
Dew point43°
Thu, 2967° / 43°0Clear
67 °Clear

Yankton, Thursday, 29 October

Clear. High 67°, low 43°.

Pressure30.06 inHg
Wind18 mph NW
Humidity35%
Visibility—
Dew point31°
Fri, 3069° / 56°0.24Rain
69 °Rain

Yankton, Friday, 30 October

Rain. High 69°, low 56°.

Pressure29.53 inHg
Wind15.5 mph S
Humidity77%
Visibility—
Dew point57°
Sat, 3157° / 40°0.28Light rain
57 °Light rain

Yankton, Saturday, 31 October

Light rain. High 57°, low 40°.

Pressure29.35 inHg
Wind27.3 mph NW
Humidity82%
Visibility—
Dew point42°
Sun, 0153° / 39°0Clear
53 °Clear

Yankton, Sunday, 1 November

Clear. High 53°, low 39°.

Pressure30.03 inHg
Wind15.8 mph W
Humidity47%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0252° / 37°0.04Climate normal
52 °Climate normal

Yankton, 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°0.06Climate normal
52 °Climate normal

Yankton, 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°0.02Climate normal
52 °Climate normal

Yankton, 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°0.04Climate normal
53 °Climate normal

Yankton, 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°0.03Climate normal
52 °Climate normal

Yankton, 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°0.02Climate normal
52 °Climate normal

Yankton, 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°0.05Climate normal
51 °Climate normal

Yankton, 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°0.12Climate normal
49 °Climate normal

Yankton, 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°0.07Climate normal
47 °Climate normal

Yankton, 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)
Wed, 1145° / 29°0.05Climate normal
45 °Climate normal

Yankton, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high45°
Average low29°
Average precipitation0.05 in
Chance of precipitation20%
Record high73° (2005)
Record low-1° (1986)
Thu, 1245° / 29°0.05Climate normal
45 °Climate normal

Yankton, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°
Average low29°
Average precipitation0.05 in
Chance of precipitation25%
Record high69° (2005)
Record low6° (1986)
Fri, 1348° / 31°0.04Climate normal
48 °Climate normal

Yankton, Friday, 13 November

Climate normal for this date — 60-year average.

Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high72° (1999)
Record low-9° (1986)
Sat, 1447° / 32°0.02Climate normal
47 °Climate normal

Yankton, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high47°
Average low32°
Average precipitation0.02 in
Chance of precipitation15%
Record high79° (2025)
Record low11° (2000)
Sun, 1547° / 31°0.07Climate normal
47 °Climate normal

Yankton, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°
Average low31°
Average precipitation0.07 in
Chance of precipitation22%
Record high70° (2001)
Record low6° (2000)

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 Yankton, 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 Yankton, 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.