As of 10:45 MDT

Weather in St. Onge, SD

44°Current weather

St. Onge, Monday, 12 October, 10:45

Overcast. Feels like 38°. High 48°, low 40°.

Pressure29.88 inHg
Wind15 mph NW
Humidity100%
Visibility6.2 mi
Dew point44°

Monthly outlook for St. Onge, SD: average high 61°, average low 44.1°. That is 2.3° above the climate normal for October. Precipitation is expected on 2 days (about 1.3 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 20 October (77.6°), the coolest 16 October (32.2°).

61°/44.1°
Average high / low
+2.3°
Above normal
2 / 4
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October63.2°57.9°+3°
22 October – 31 October57.4°53.8°+2°
1 November – 10 Novemberat normal48.6°—

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).

Tue, 1346° / 34°0Light rain
46 °Light rain

St. Onge, Tuesday, 13 October

Light rain. High 46°, low 34°.

Pressure30.09 inHg
Wind2.9 mph E
Humidity75%
Visibility6.2 mi
Dew point39°
Wed, 1456° / 43°0Overcast
56 °Overcast

St. Onge, Wednesday, 14 October

Overcast. High 56°, low 43°.

Pressure30.18 inHg
Wind5.7 mph E
Humidity59%
Visibility6.2 mi
Dew point40°
Thu, 1557° / 43°0Partly cloudy
57 °Partly cloudy

St. Onge, Thursday, 15 October

Partly cloudy. High 57°, low 43°.

Pressure30.50 inHg
Wind13.8 mph NW
Humidity38%
Visibility6.2 mi
Dew point26°
Fri, 1659° / 32°0Clear
59 °Clear

St. Onge, Friday, 16 October

Clear. High 59°, low 32°.

Pressure30.59 inHg
Wind5.9 mph W
Humidity41%
Visibility—
Dew point26°
Sat, 1772° / 40°0Clear
72 °Clear

St. Onge, Saturday, 17 October

Clear. High 72°, low 40°.

Pressure29.91 inHg
Wind6.5 mph NE
Humidity23%
Visibility—
Dew point25°
Sun, 1872° / 51°0Clear
72 °Clear

St. Onge, Sunday, 18 October

Clear. High 72°, low 51°.

Pressure29.83 inHg
Wind8.2 mph W
Humidity22%
Visibility—
Dew point27°
Mon, 1973° / 48°0Clear
73 °Clear

St. Onge, Monday, 19 October

Clear. High 73°, low 48°.

Pressure30.00 inHg
Wind19.2 mph S
Humidity27%
Visibility—
Dew point31°
Tue, 2078° / 54°0Mostly clear
78 °Mostly clear

St. Onge, Tuesday, 20 October

Mostly clear. High 78°, low 54°.

Pressure29.68 inHg
Wind20.4 mph S
Humidity21%
Visibility—
Dew point31°
Wed, 2171° / 55°0Overcast
71 °Overcast

St. Onge, Wednesday, 21 October

Overcast. High 71°, low 55°.

Pressure29.68 inHg
Wind18.1 mph S
Humidity34%
Visibility—
Dew point39°
Thu, 2254° / 44°0Overcast
54 °Overcast

St. Onge, Thursday, 22 October

Overcast. High 54°, low 44°.

Pressure30.15 inHg
Wind15 mph NW
Humidity67%
Visibility—
Dew point38°
Fri, 2354° / 47°0.66Heavy rain
54 °Heavy rain

St. Onge, Friday, 23 October

Heavy rain. High 54°, low 47°.

Pressure29.85 inHg
Wind21.6 mph SW
Humidity93%
Visibility—
Dew point48°
Sat, 2449° / 39°0.59Snow
49 °Snow

St. Onge, Saturday, 24 October

Snow. High 49°, low 39°.

Pressure29.83 inHg
Wind38.1 mph NW
Humidity94%
Visibility—
Dew point39°
Sun, 2558° / 39°0Clear
58 °Clear

St. Onge, Sunday, 25 October

Clear. High 58°, low 39°.

Pressure30.47 inHg
Wind17.4 mph W
Humidity39%
Visibility—
Dew point28°
Mon, 2668° / 45°0Clear
68 °Clear

St. Onge, Monday, 26 October

Clear. High 68°, low 45°.

Pressure30.27 inHg
Wind12.8 mph NW
Humidity18%
Visibility—
Dew point19°
Tue, 2762° / 51°0Clear
62 °Clear

St. Onge, Tuesday, 27 October

Clear. High 62°, low 51°.

Pressure30.30 inHg
Wind7.5 mph SW
Humidity39%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)

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.