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As of 13:22 CDT

Weather in Altamont, SD

77°Current weather

Altamont, Saturday, 8 August, 13:22

Clear. Feels like 77°. High 84°, low 53°.

Pressure29.97 inHg
Wind10.4 mph SW
Humidity57%
Visibility6.2 mi
Dew point59°
Sun, 0981° / 61°0.15Rain
81 °Rain

Altamont, Sunday, 9 August

Rain. High 81°, low 61°.

Pressure29.83 inHg
Wind12.7 mph NE
Humidity58%
Visibility6.2 mi
Dew point63°
Mon, 1092° / 57°0.02Light rain
92 °Light rain

Altamont, Monday, 10 August

Light rain. High 92°, low 57°.

Pressure29.85 inHg
Wind11.3 mph E
Humidity48%
Visibility6.2 mi
Dew point60°
Tue, 1182° / 61°1.92Heavy rain
82 °Heavy rain

Altamont, Tuesday, 11 August

Heavy rain. High 82°, low 61°.

Pressure29.88 inHg
Wind6.1 mph N
Humidity65%
Visibility6.2 mi
Dew point64°
Wed, 1282° / 63°0.04Light rain
82 °Light rain

Altamont, Wednesday, 12 August

Light rain. High 82°, low 63°.

Pressure29.91 inHg
Wind6.2 mph N
Humidity43%
Visibility6.2 mi
Dew point55°
Thu, 1371° / 50°0.01Light rain
71 °Light rain

Altamont, Thursday, 13 August

Light rain. High 71°, low 50°.

Pressure30.12 inHg
Wind11.9 mph N
Humidity45%
Visibility—
Dew point43°
Fri, 1480° / 54°0Clear
80 °Clear

Altamont, Friday, 14 August

Clear. High 80°, low 54°.

Pressure30.09 inHg
Wind10.7 mph SE
Humidity31%
Visibility—
Dew point40°
Sat, 1576° / 61°0Overcast
76 °Overcast

Altamont, Saturday, 15 August

Overcast. High 76°, low 61°.

Pressure30.06 inHg
Wind11.6 mph SE
Humidity43%
Visibility—
Dew point50°
Sun, 1670° / 65°0.13Light rain
70 °Light rain

Altamont, Sunday, 16 August

Light rain. High 70°, low 65°.

Pressure30.00 inHg
Wind11.3 mph SE
Humidity82%
Visibility—
Dew point63°
Mon, 1772° / 60°0.09Light rain
72 °Light rain

Altamont, Monday, 17 August

Light rain. High 72°, low 60°.

Pressure29.97 inHg
Wind10.6 mph N
Humidity74%
Visibility—
Dew point61°
Tue, 1885° / 58°0.02Light rain
85 °Light rain

Altamont, Tuesday, 18 August

Light rain. High 85°, low 58°.

Pressure29.88 inHg
Wind16.6 mph N
Humidity59%
Visibility—
Dew point59°
Wed, 1973° / 54°0Mostly clear
73 °Mostly clear

Altamont, Wednesday, 19 August

Mostly clear. High 73°, low 54°.

Pressure30.21 inHg
Wind11.4 mph NE
Humidity44%
Visibility—
Dew point46°
Thu, 2075° / 48°0Partly cloudy
75 °Partly cloudy

Altamont, Thursday, 20 August

Partly cloudy. High 75°, low 48°.

Pressure30.30 inHg
Wind11.3 mph E
Humidity29%
Visibility—
Dew point35°
Fri, 2185° / 53°0Mostly clear
85 °Mostly clear

Altamont, Friday, 21 August

Mostly clear. High 85°, low 53°.

Pressure30.09 inHg
Wind19.2 mph SW
Humidity33%
Visibility—
Dew point44°
Sat, 2289° / 62°0Overcast
89 °Overcast

Altamont, Saturday, 22 August

Overcast. High 89°, low 62°.

Pressure29.94 inHg
Wind14.3 mph SW
Humidity29%
Visibility—
Dew point47°
Sun, 2390° / 62°0.13Rain
90 °Rain

Altamont, Sunday, 23 August

Rain. High 90°, low 62°.

Pressure29.88 inHg
Wind15 mph SW
Humidity40%
Visibility—
Dew point55°

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 Altamont, 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 Altamont, 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.