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As of 12:02 MDT

Weather in Allen, SD

89°Current weather

Allen, Saturday, 8 August, 12:02

Clear. Feels like 87°. High 99°, low 63°.

Pressure29.77 inHg
Wind9.1 mph S
Humidity28%
Visibility6.2 mi
Dew point50°
Sun, 0992° / 67°0Overcast
92 °Overcast

Allen, Sunday, 9 August

Overcast. High 92°, low 67°.

Pressure29.80 inHg
Wind12 mph NE
Humidity32%
Visibility6.2 mi
Dew point54°
Mon, 10105° / 65°0Clear
105 °Clear

Allen, Monday, 10 August

Clear. High 105°, low 65°.

Pressure29.71 inHg
Wind8.1 mph S
Humidity23%
Visibility6.2 mi
Dew point52°
Tue, 1191° / 64°0.06Light rain
91 °Light rain

Allen, Tuesday, 11 August

Light rain. High 91°, low 64°.

Pressure29.85 inHg
Wind11.3 mph NE
Humidity38%
Visibility6.2 mi
Dew point58°
Wed, 1293° / 62°0.29Rain
93 °Rain

Allen, Wednesday, 12 August

Rain. High 93°, low 62°.

Pressure29.83 inHg
Wind9.3 mph SE
Humidity34%
Visibility6.2 mi
Dew point57°
Thu, 1376° / 58°0Overcast
76 °Overcast

Allen, Thursday, 13 August

Overcast. High 76°, low 58°.

Pressure30.15 inHg
Wind11.8 mph SE
Humidity37%
Visibility—
Dew point41°
Fri, 1488° / 63°0.02Light rain
88 °Light rain

Allen, Friday, 14 August

Light rain. High 88°, low 63°.

Pressure29.91 inHg
Wind23.6 mph S
Humidity39%
Visibility—
Dew point52°
Sat, 1586° / 70°0.22Rain
86 °Rain

Allen, Saturday, 15 August

Rain. High 86°, low 70°.

Pressure29.88 inHg
Wind20.1 mph S
Humidity42%
Visibility—
Dew point58°
Sun, 1686° / 65°0.08Light rain
86 °Light rain

Allen, Sunday, 16 August

Light rain. High 86°, low 65°.

Pressure29.94 inHg
Wind10.2 mph NW
Humidity54%
Visibility—
Dew point60°
Mon, 1789° / 69°0.04Light rain
89 °Light rain

Allen, Monday, 17 August

Light rain. High 89°, low 69°.

Pressure30.00 inHg
Wind10.6 mph E
Humidity35%
Visibility—
Dew point51°
Tue, 1888° / 67°0.04Light rain
88 °Light rain

Allen, Tuesday, 18 August

Light rain. High 88°, low 67°.

Pressure29.94 inHg
Wind14.1 mph N
Humidity29%
Visibility—
Dew point48°
Wed, 1973° / 61°0.07Light rain
73 °Light rain

Allen, Wednesday, 19 August

Light rain. High 73°, low 61°.

Pressure30.24 inHg
Wind13.7 mph E
Humidity75%
Visibility—
Dew point55°
Thu, 2082° / 60°0.01Light rain
82 °Light rain

Allen, Thursday, 20 August

Light rain. High 82°, low 60°.

Pressure30.15 inHg
Wind23 mph S
Humidity37%
Visibility—
Dew point46°
Fri, 2192° / 65°0Partly cloudy
92 °Partly cloudy

Allen, Friday, 21 August

Partly cloudy. High 92°, low 65°.

Pressure29.88 inHg
Wind21.6 mph S
Humidity39%
Visibility—
Dew point56°
Sat, 2293° / 70°0.09Light rain
93 °Light rain

Allen, Saturday, 22 August

Light rain. High 93°, low 70°.

Pressure29.83 inHg
Wind13.7 mph S
Humidity37%
Visibility—
Dew point56°
Sun, 2391° / 70°0.37Rain
91 °Rain

Allen, Sunday, 23 August

Rain. High 91°, low 70°.

Pressure29.80 inHg
Wind15.2 mph SE
Humidity31%
Visibility—
Dew point54°

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 Allen, 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 Allen, 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.