As of 14:57 MDT

Weather in St. Onge, SD

57°Current weather

St. Onge, Sunday, 11 October, 14:57

Overcast. Feels like 55°. High 57°, low 48°.

Pressure29.80 inHg
Wind9 mph E
Humidity70%
Visibility6.2 mi
Dew point49°

Monthly outlook for St. Onge, SD: average high 58.5°, average low 42.2°. That is 0.7° above the climate normal for October. Precipitation is expected on 6 days (about 0.6 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 20 October (75.8°), the coolest 24 October (29.3°).

58.5°/42.2°
Average high / low
+0.7°
Above normal
6 / 4
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October62.1°58.1°+2.2°
21 October – 30 October52.6°54.6°-1.1°
31 October – 9 Novemberat normal49°—

October records over 66 years

89.8°4 October 1963All-time high
-4.2°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Whitewood (7 mi).

Mon, 1253° / 45°0.04Light rain
53 °Light rain

St. Onge, Monday, 12 October

Light rain. High 53°, low 45°.

Pressure29.91 inHg
Wind17.4 mph NW
Humidity72%
Visibility6.2 mi
Dew point42°
Tue, 1349° / 41°0.06Light rain
49 °Light rain

St. Onge, Tuesday, 13 October

Light rain. High 49°, low 41°.

Pressure30.09 inHg
Wind4.1 mph E
Humidity87%
Visibility3.7 mi
Dew point42°
Wed, 1455° / 46°0.14Rain
55 °Rain

St. Onge, Wednesday, 14 October

Rain. High 55°, low 46°.

Pressure30.15 inHg
Wind10.8 mph E
Humidity62%
Visibility6.2 mi
Dew point40°
Thu, 1555° / 42°0.19Rain
55 °Rain

St. Onge, Thursday, 15 October

Rain. High 55°, low 42°.

Pressure30.47 inHg
Wind17.2 mph NW
Humidity44%
Visibility6.2 mi
Dew point26°
Fri, 1657° / 32°0Clear
57 °Clear

St. Onge, Friday, 16 October

Clear. High 57°, low 32°.

Pressure30.59 inHg
Wind4.3 mph W
Humidity40%
Visibility—
Dew point24°
Sat, 1774° / 41°0Clear
74 °Clear

St. Onge, Saturday, 17 October

Clear. High 74°, low 41°.

Pressure29.97 inHg
Wind9.1 mph SW
Humidity26%
Visibility—
Dew point28°
Sun, 1872° / 56°0Clear
72 °Clear

St. Onge, Sunday, 18 October

Clear. High 72°, low 56°.

Pressure29.94 inHg
Wind7.5 mph S
Humidity25%
Visibility—
Dew point31°
Mon, 1973° / 52°0Clear
73 °Clear

St. Onge, Monday, 19 October

Clear. High 73°, low 52°.

Pressure29.94 inHg
Wind18.5 mph SE
Humidity24%
Visibility—
Dew point31°
Tue, 2076° / 53°0Overcast
76 °Overcast

St. Onge, Tuesday, 20 October

Overcast. High 76°, low 53°.

Pressure29.53 inHg
Wind25.7 mph SW
Humidity21%
Visibility—
Dew point30°
Wed, 2166° / 45°0Clear
66 °Clear

St. Onge, Wednesday, 21 October

Clear. High 66°, low 45°.

Pressure29.83 inHg
Wind11.7 mph W
Humidity14%
Visibility—
Dew point10°
Thu, 2261° / 45°0.01Light rain
61 °Light rain

St. Onge, Thursday, 22 October

Light rain. High 61°, low 45°.

Pressure29.88 inHg
Wind11.7 mph E
Humidity22%
Visibility—
Dew point17°
Fri, 2345° / 36°0.07Light rain
45 °Light rain

St. Onge, Friday, 23 October

Light rain. High 45°, low 36°.

Pressure30.39 inHg
Wind23 mph NW
Humidity53%
Visibility—
Dew point28°
Sat, 2442° / 29°0.02Light snow
42 °Light snow

St. Onge, Saturday, 24 October

Light snow. High 42°, low 29°.

Pressure30.56 inHg
Wind14.7 mph NW
Humidity60%
Visibility—
Dew point23°
Sun, 2561° / 33°0Clear
61 °Clear

St. Onge, Sunday, 25 October

Clear. High 61°, low 33°.

Pressure30.06 inHg
Wind24.1 mph NW
Humidity13%
Visibility—
Dew point7°
Mon, 2640° / 30°0Overcast
40 °Overcast

St. Onge, Monday, 26 October

Overcast. High 40°, low 30°.

Pressure30.45 inHg
Wind17.5 mph NW
Humidity40%
Visibility—
Dew point14°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2754° / 34°0.04Climate normal
54 °Climate normal

St. Onge, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high54°
Average low34°
Average precipitation0.04 in
Chance of precipitation27%
Record high76° (2016)
Record low16° (2023)
Wed, 2854° / 35°0.06Climate normal
54 °Climate normal

St. Onge, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high54°
Average low35°
Average precipitation0.06 in
Chance of precipitation22%
Record high76° (1985)
Record low10° (1991)
Thu, 2952° / 34°0.11Climate normal
52 °Climate normal

St. Onge, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high52°
Average low34°
Average precipitation0.11 in
Chance of precipitation37%
Record high77° (1968)
Record low1° (1991)
Fri, 3050° / 33°0.04Climate normal
50 °Climate normal

St. Onge, Friday, 30 October

Climate normal for this date — 60-year average.

Average high50°
Average low33°
Average precipitation0.04 in
Chance of precipitation27%
Record high77° (1968)
Record low-4° (1991)
Sat, 3150° / 33°0.05Climate normal
50 °Climate normal

St. Onge, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high50°
Average low33°
Average precipitation0.05 in
Chance of precipitation23%
Record high74° (1999)
Record low-3° (1991)
Sun, 0150° / 32°0.08Climate normal
50 °Climate normal

St. Onge, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high50°
Average low32°
Average precipitation0.08 in
Chance of precipitation25%
Record high72° (1965)
Record low-5° (2002)
Mon, 0249° / 32°0.04Climate normal
49 °Climate normal

St. Onge, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°
Average low32°
Average precipitation0.04 in
Chance of precipitation25%
Record high75° (2008)
Record low-5° (1991)
Tue, 0349° / 32°0.04Climate normal
49 °Climate normal

St. Onge, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low32°
Average precipitation0.04 in
Chance of precipitation22%
Record high74° (2020)
Record low0° (1991)
Wed, 0451° / 31°0.02Climate normal
51 °Climate normal

St. Onge, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high51°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high75° (1978)
Record low9° (2002)
Thu, 0550° / 31°0.04Climate normal
50 °Climate normal

St. Onge, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high50°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high74° (2020)
Record low4° (2003)
Fri, 0649° / 30°0.06Climate normal
49 °Climate normal

St. Onge, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low30°
Average precipitation0.06 in
Chance of precipitation18%
Record high73° (2020)
Record low2° (2003)
Sat, 0750° / 31°0.04Climate normal
50 °Climate normal

St. Onge, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high50°
Average low31°
Average precipitation0.04 in
Chance of precipitation17%
Record high75° (1999)
Record low3° (1991)
Sun, 0848° / 30°0.06Climate normal
48 °Climate normal

St. Onge, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high48°
Average low30°
Average precipitation0.06 in
Chance of precipitation20%
Record high77° (1999)
Record low6° (2000)
Mon, 0944° / 28°0.07Climate normal
44 °Climate normal

St. Onge, Monday, 9 November

Climate normal for this date — 60-year average.

Average high44°
Average low28°
Average precipitation0.07 in
Chance of precipitation28%
Record high70° (2001)
Record low-4° (1966)

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 St. Onge, 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 St. Onge, 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.