As of 02:12 MDT

Weather in St. Onge, SD

39°Current weather

St. Onge, Tuesday, 13 October, 02:12

Overcast. Feels like 39°. High 47°, low 37°.

Pressure29.97 inHg
Wind0 mph N
Humidity91%
Visibility6.2 mi
Dew point36°

Monthly outlook for St. Onge, SD: average high 59°, average low 42.8°. That is 1.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 20 October (75.9°), the coolest 16 October (33.6°).

59°/42.8°
Average high / low
+1.3°
Above normal
2 / 4
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 October – 22 October60°57.6°+1.3°
23 October – 1 November57.5°53.2°+2.4°
2 November – 11 Novemberat normal48°—

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).

Wed, 1450° / 39°0.03Light rain
50 °Light rain

St. Onge, Wednesday, 14 October

Light rain. High 50°, low 39°.

Pressure30.18 inHg
Wind5.8 mph E
Humidity52%
Visibility6.2 mi
Dew point38°
Thu, 1557° / 39°0.02Light rain
57 °Light rain

St. Onge, Thursday, 15 October

Light rain. High 57°, low 39°.

Pressure30.47 inHg
Wind16.6 mph NW
Humidity40%
Visibility6.2 mi
Dew point28°
Fri, 1659° / 34°0Clear
59 °Clear

St. Onge, Friday, 16 October

Clear. High 59°, low 34°.

Pressure30.56 inHg
Wind9.3 mph E
Humidity39%
Visibility6.2 mi
Dew point20°
Sat, 1773° / 42°0Clear
73 °Clear

St. Onge, Saturday, 17 October

Clear. High 73°, low 42°.

Pressure29.97 inHg
Wind6.8 mph SE
Humidity24%
Visibility—
Dew point27°
Sun, 1868° / 52°0Mostly clear
68 °Mostly clear

St. Onge, Sunday, 18 October

Mostly clear. High 68°, low 52°.

Pressure29.97 inHg
Wind8.7 mph W
Humidity32%
Visibility—
Dew point33°
Mon, 1973° / 51°0Clear
73 °Clear

St. Onge, Monday, 19 October

Clear. High 73°, low 51°.

Pressure29.85 inHg
Wind17.2 mph SE
Humidity20%
Visibility—
Dew point25°
Tue, 2076° / 56°0Partly cloudy
76 °Partly cloudy

St. Onge, Tuesday, 20 October

Partly cloudy. High 76°, low 56°.

Pressure29.59 inHg
Wind21.5 mph SW
Humidity21%
Visibility—
Dew point31°
Wed, 2155° / 42°0.33Rain
55 °Rain

St. Onge, Wednesday, 21 October

Rain. High 55°, low 42°.

Pressure29.68 inHg
Wind15.9 mph NW
Humidity50%
Visibility—
Dew point34°
Thu, 2242° / 38°0.41Snow
42 °Snow

St. Onge, Thursday, 22 October

Snow. High 42°, low 38°.

Pressure29.91 inHg
Wind13.7 mph NW
Humidity89%
Visibility—
Dew point36°
Fri, 2351° / 40°0Mostly clear
51 °Mostly clear

St. Onge, Friday, 23 October

Mostly clear. High 51°, low 40°.

Pressure30.09 inHg
Wind20.6 mph NW
Humidity48%
Visibility—
Dew point30°
Sat, 2451° / 36°0Partly cloudy
51 °Partly cloudy

St. Onge, Saturday, 24 October

Partly cloudy. High 51°, low 36°.

Pressure30.45 inHg
Wind15.2 mph NW
Humidity46%
Visibility—
Dew point27°
Sun, 2552° / 38°0Overcast
52 °Overcast

St. Onge, Sunday, 25 October

Overcast. High 52°, low 38°.

Pressure30.27 inHg
Wind19.4 mph NW
Humidity37%
Visibility—
Dew point25°
Mon, 2666° / 42°0Partly cloudy
66 °Partly cloudy

St. Onge, Monday, 26 October

Partly cloudy. High 66°, low 42°.

Pressure30.21 inHg
Wind24.8 mph NW
Humidity38%
Visibility—
Dew point35°
Tue, 2765° / 53°0Clear
65 °Clear

St. Onge, Tuesday, 27 October

Clear. High 65°, low 53°.

Pressure30.15 inHg
Wind21.6 mph NW
Humidity36%
Visibility—
Dew point35°
Wed, 2859° / 47°0Mostly clear
59 °Mostly clear

St. Onge, Wednesday, 28 October

Mostly clear. High 59°, low 47°.

Pressure30.09 inHg
Wind8.9 mph W
Humidity43%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 1046° / 27°0.05Climate normal
46 °Climate normal

St. Onge, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high46°
Average low27°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (2007)
Record low-4° (1986)
Wed, 1144° / 26°0.02Climate normal
44 °Climate normal

St. Onge, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high44°
Average low26°
Average precipitation0.02 in
Chance of precipitation27%
Record high68° (2005)
Record low-3° (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 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.