As of 09:32 CDT

Weather in Yankton, SD

48°Current weather

Yankton, Thursday, 15 October, 09:32

Overcast. Feels like 45°. High 56°, low 46°.

Pressure30.12 inHg
Wind6.9 mph N
Humidity100%
Visibility4.9 mi
Dew point48°

Monthly outlook for Yankton, SD: average high 63°, average low 49.1°. That is 2.5° above the climate normal for October. Precipitation is expected on 8 days (about 2.6 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 22 October (75.8°), the coolest 17 October (37.7°).

63°/49.1°
Average high / low
+2.5°
Above normal
8 / 3
Wet days / normal
2.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October63.7°60°+2°
25 October – 3 November61.9°54.6°+4°
4 November – 13 Novemberat normal49.1°—

October records over 66 years

93°3 October 2025All-time high
5°27 October 2020All-time low
Fri, 1652° / 40°0Clear
52 °Clear

Yankton, Friday, 16 October

Clear. High 52°, low 40°.

Pressure30.65 inHg
Wind17.3 mph N
Humidity54%
Visibility6.2 mi
Dew point30°
Sat, 1761° / 38°0Clear
61 °Clear

Yankton, Saturday, 17 October

Clear. High 61°, low 38°.

Pressure30.39 inHg
Wind12.3 mph S
Humidity45%
Visibility6.2 mi
Dew point34°
Sun, 1864° / 44°0Clear
64 °Clear

Yankton, Sunday, 18 October

Clear. High 64°, low 44°.

Pressure30.09 inHg
Wind10.2 mph S
Humidity51%
Visibility6.2 mi
Dew point40°
Mon, 1961° / 47°0Overcast
61 °Overcast

Yankton, Monday, 19 October

Overcast. High 61°, low 47°.

Pressure30.12 inHg
Wind7 mph SE
Humidity62%
Visibility—
Dew point44°
Tue, 2068° / 46°0Clear
68 °Clear

Yankton, Tuesday, 20 October

Clear. High 68°, low 46°.

Pressure30.15 inHg
Wind8.4 mph SE
Humidity67%
Visibility—
Dew point49°
Wed, 2169° / 54°0.12Light rain
69 °Light rain

Yankton, Wednesday, 21 October

Light rain. High 69°, low 54°.

Pressure30.06 inHg
Wind18.3 mph S
Humidity73%
Visibility—
Dew point53°
Thu, 2276° / 60°0.08Light rain
76 °Light rain

Yankton, Thursday, 22 October

Light rain. High 76°, low 60°.

Pressure29.88 inHg
Wind16.5 mph S
Humidity56%
Visibility—
Dew point56°
Fri, 2367° / 61°1.08Rain
67 °Rain

Yankton, Friday, 23 October

Rain. High 67°, low 61°.

Pressure29.83 inHg
Wind20.2 mph S
Humidity86%
Visibility—
Dew point58°
Sat, 2462° / 50°0.14Light rain
62 °Light rain

Yankton, Saturday, 24 October

Light rain. High 62°, low 50°.

Pressure30.15 inHg
Wind17.5 mph NW
Humidity46%
Visibility—
Dew point38°
Sun, 2563° / 46°0Clear
63 °Clear

Yankton, Sunday, 25 October

Clear. High 63°, low 46°.

Pressure30.47 inHg
Wind15.6 mph SE
Humidity38%
Visibility—
Dew point33°
Mon, 2656° / 50°0.53Rain
56 °Rain

Yankton, Monday, 26 October

Rain. High 56°, low 50°.

Pressure30.18 inHg
Wind16.8 mph SE
Humidity90%
Visibility—
Dew point47°
Tue, 2768° / 62°0.03Light rain
68 °Light rain

Yankton, Tuesday, 27 October

Light rain. High 68°, low 62°.

Pressure29.83 inHg
Wind19.3 mph S
Humidity78%
Visibility—
Dew point60°
Wed, 2865° / 50°0.22Rain
65 °Rain

Yankton, Wednesday, 28 October

Rain. High 65°, low 50°.

Pressure29.77 inHg
Wind21.9 mph S
Humidity33%
Visibility—
Dew point31°
Thu, 2963° / 52°0Mostly clear
63 °Mostly clear

Yankton, Thursday, 29 October

Mostly clear. High 63°, low 52°.

Pressure29.83 inHg
Wind16.1 mph S
Humidity37%
Visibility—
Dew point34°
Fri, 3056° / 39°0.13Light rain
56 °Light rain

Yankton, Friday, 30 October

Light rain. High 56°, low 39°.

Pressure29.80 inHg
Wind24.6 mph NW
Humidity52%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3154° / 37°0.06Climate normal
54 °Climate normal

Yankton, 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°0.06Climate normal
53 °Climate normal

Yankton, 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°0.04Climate 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)

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.