As of 18:15 CDT

Weather in Argonne, SD

85°Current weather

Argonne, Saturday, 10 October, 18:15

Clear. Feels like 83°. High 86°, low 64°.

Pressure29.53 inHg
Wind13.7 mph S
Humidity38%
Visibility6.2 mi
Dew point55°

Monthly outlook for Argonne, SD: average high 61.3°, average low 43.7°. That is 1.9° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 10 October (86.4°), the coolest 17 October (24.8°).

61.3°/43.7°
Average high / low
+1.9°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 October – 19 October61.9°59°+1.6°
20 October – 29 October60.5°55.2°+2.9°
30 October – 8 Novemberat normal49.3°—

October records over 66 years

89.6°3 October 2025All-time high
10.4°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Carthage (8 mi).

Sun, 1182° / 63°0Overcast
82 °Overcast

Argonne, Sunday, 11 October

Overcast. High 82°, low 63°.

Pressure29.65 inHg
Wind11.9 mph S
Humidity41%
Visibility6.2 mi
Dew point53°
Mon, 1271° / 53°0Overcast
71 °Overcast

Argonne, Monday, 12 October

Overcast. High 71°, low 53°.

Pressure29.71 inHg
Wind8.9 mph N
Humidity67%
Visibility6.2 mi
Dew point56°
Tue, 1359° / 50°0Light rain
59 °Light rain

Argonne, Tuesday, 13 October

Light rain. High 59°, low 50°.

Pressure30.03 inHg
Wind7.9 mph N
Humidity60%
Visibility6.2 mi
Dew point40°
Wed, 1461° / 45°0Clear
61 °Clear

Argonne, Wednesday, 14 October

Clear. High 61°, low 45°.

Pressure30.27 inHg
Wind4.9 mph N
Humidity56%
Visibility6.2 mi
Dew point40°
Thu, 1560° / 49°0Overcast
60 °Overcast

Argonne, Thursday, 15 October

Overcast. High 60°, low 49°.

Pressure30.33 inHg
Wind8.9 mph N
Humidity53%
Visibility—
Dew point42°
Fri, 1651° / 31°0Overcast
51 °Overcast

Argonne, Friday, 16 October

Overcast. High 51°, low 31°.

Pressure30.47 inHg
Wind23.7 mph NW
Humidity56%
Visibility—
Dew point25°
Sat, 1739° / 25°0Clear
39 °Clear

Argonne, Saturday, 17 October

Clear. High 39°, low 25°.

Pressure30.62 inHg
Wind17.6 mph NW
Humidity38%
Visibility—
Dew point11°
Sun, 1848° / 26°0Partly cloudy
48 °Partly cloudy

Argonne, Sunday, 18 October

Partly cloudy. High 48°, low 26°.

Pressure30.45 inHg
Wind20.1 mph S
Humidity28%
Visibility—
Dew point10°
Mon, 1962° / 39°0Clear
62 °Clear

Argonne, Monday, 19 October

Clear. High 62°, low 39°.

Pressure30.15 inHg
Wind19.1 mph S
Humidity42%
Visibility—
Dew point31°
Tue, 2071° / 47°0Clear
71 °Clear

Argonne, Tuesday, 20 October

Clear. High 71°, low 47°.

Pressure30.00 inHg
Wind16 mph S
Humidity37%
Visibility—
Dew point38°
Wed, 2169° / 51°0Overcast
69 °Overcast

Argonne, Wednesday, 21 October

Overcast. High 69°, low 51°.

Pressure29.94 inHg
Wind15.1 mph S
Humidity40%
Visibility—
Dew point38°
Thu, 2253° / 46°0.02Light rain
53 °Light rain

Argonne, Thursday, 22 October

Light rain. High 53°, low 46°.

Pressure30.36 inHg
Wind17.8 mph NW
Humidity45%
Visibility—
Dew point30°
Fri, 2351° / 36°0Mostly clear
51 °Mostly clear

Argonne, Friday, 23 October

Mostly clear. High 51°, low 36°.

Pressure30.47 inHg
Wind9.7 mph N
Humidity50%
Visibility—
Dew point29°
Sat, 2455° / 34°0Clear
55 °Clear

Argonne, Saturday, 24 October

Clear. High 55°, low 34°.

Pressure30.27 inHg
Wind11.9 mph SE
Humidity46%
Visibility—
Dew point29°
Sun, 2564° / 42°0Overcast
64 °Overcast

Argonne, Sunday, 25 October

Overcast. High 64°, low 42°.

Pressure30.09 inHg
Wind12.3 mph S
Humidity42%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2655° / 38°0.02Climate normal
55 °Climate normal

Argonne, Monday, 26 October

Climate normal for this date — 60-year average.

Average high55°
Average low38°
Average precipitation0.02 in
Chance of precipitation12%
Record high78° (1989)
Record low11° (2020)
Tue, 2754° / 38°0.07Climate normal
54 °Climate normal

Argonne, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.07 in
Chance of precipitation28%
Record high72° (1999)
Record low10° (2020)
Wed, 2853° / 37°0.04Climate normal
53 °Climate normal

Argonne, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.04 in
Chance of precipitation12%
Record high73° (2016)
Record low17° (2017)
Thu, 2952° / 37°0.06Climate normal
52 °Climate normal

Argonne, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.06 in
Chance of precipitation22%
Record high68° (1978)
Record low19° (1991)
Fri, 3051° / 37°0.1Climate normal
51 °Climate normal

Argonne, Friday, 30 October

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.1 in
Chance of precipitation33%
Record high70° (1965)
Record low17° (1991)
Sat, 3151° / 35°0.05Climate normal
51 °Climate normal

Argonne, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high51°
Average low35°
Average precipitation0.05 in
Chance of precipitation17%
Record high72° (1990)
Record low15° (2019)
Sun, 0150° / 35°0.05Climate normal
50 °Climate normal

Argonne, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.05 in
Chance of precipitation25%
Record high71° (1990)
Record low17° (2002)
Mon, 0249° / 34°0.04Climate normal
49 °Climate normal

Argonne, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°
Average low34°
Average precipitation0.04 in
Chance of precipitation10%
Record high72° (2022)
Record low10° (1991)
Tue, 0349° / 34°0.02Climate normal
49 °Climate normal

Argonne, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low34°
Average precipitation0.02 in
Chance of precipitation13%
Record high73° (1978)
Record low7° (1991)
Wed, 0449° / 32°0.01Climate normal
49 °Climate normal

Argonne, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low32°
Average precipitation0.01 in
Chance of precipitation8%
Record high70° (2015)
Record low-5° (1991)
Thu, 0549° / 33°0.04Climate normal
49 °Climate normal

Argonne, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°
Average low33°
Average precipitation0.04 in
Chance of precipitation23%
Record high73° (2001)
Record low12° (2003)
Fri, 0648° / 33°0.03Climate normal
48 °Climate normal

Argonne, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°
Average low33°
Average precipitation0.03 in
Chance of precipitation17%
Record high76° (2020)
Record low2° (2003)
Sat, 0749° / 32°0.02Climate normal
49 °Climate normal

Argonne, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high49°
Average low32°
Average precipitation0.02 in
Chance of precipitation12%
Record high73° (2020)
Record low3° (1991)
Sun, 0847° / 32°0.06Climate normal
47 °Climate normal

Argonne, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high47°
Average low32°
Average precipitation0.06 in
Chance of precipitation17%
Record high73° (1999)
Record low9° (1991)

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 Argonne, 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 Argonne, 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.