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As of 21:47 MDT

Weather in Lacy, SD

71°Current weather

Lacy, Friday, 9 October, 21:47

Clear. Feels like 70°. High 83°, low 46°.

Pressure29.53 inHg
Wind13.1 mph S
Humidity50%
Visibility6.2 mi
Dew point51°
Sat, 1087° / 60°0Clear
87 °Clear

Lacy, Saturday, 10 October

Clear. High 87°, low 60°.

Pressure29.47 inHg
Wind7.8 mph W
Humidity32%
Visibility6.2 mi
Dew point49°
Sun, 1162° / 52°0Overcast
62 °Overcast

Lacy, Sunday, 11 October

Overcast. High 62°, low 52°.

Pressure29.74 inHg
Wind13.9 mph N
Humidity75%
Visibility6.2 mi
Dew point53°
Mon, 1256° / 49°0.26Rain
56 °Rain

Lacy, Monday, 12 October

Rain. High 56°, low 49°.

Pressure29.85 inHg
Wind7.4 mph N
Humidity78%
Visibility6.2 mi
Dew point47°
Tue, 1350° / 45°0Overcast
50 °Overcast

Lacy, Tuesday, 13 October

Overcast. High 50°, low 45°.

Pressure30.12 inHg
Wind5.7 mph N
Humidity68%
Visibility6.2 mi
Dew point40°
Wed, 1457° / 42°0Clear
57 °Clear

Lacy, Wednesday, 14 October

Clear. High 57°, low 42°.

Pressure30.30 inHg
Wind4.3 mph E
Humidity61%
Visibility—
Dew point40°
Thu, 1557° / 48°0.15Rain
57 °Rain

Lacy, Thursday, 15 October

Rain. High 57°, low 48°.

Pressure30.24 inHg
Wind30.7 mph NW
Humidity69%
Visibility—
Dew point45°
Fri, 1644° / 33°0Overcast
44 °Overcast

Lacy, Friday, 16 October

Overcast. High 44°, low 33°.

Pressure30.33 inHg
Wind38.9 mph NW
Humidity58%
Visibility—
Dew point27°
Sat, 1747° / 28°0Clear
47 °Clear

Lacy, Saturday, 17 October

Clear. High 47°, low 28°.

Pressure30.47 inHg
Wind18.6 mph SE
Humidity41%
Visibility—
Dew point17°
Sun, 1860° / 43°0Overcast
60 °Overcast

Lacy, Sunday, 18 October

Overcast. High 60°, low 43°.

Pressure30.00 inHg
Wind14.9 mph S
Humidity37%
Visibility—
Dew point29°
Mon, 1962° / 42°0Mostly clear
62 °Mostly clear

Lacy, Monday, 19 October

Mostly clear. High 62°, low 42°.

Pressure30.03 inHg
Wind19.6 mph SE
Humidity40%
Visibility—
Dew point31°
Tue, 2063° / 51°0Overcast
63 °Overcast

Lacy, Tuesday, 20 October

Overcast. High 63°, low 51°.

Pressure29.71 inHg
Wind14.8 mph SE
Humidity59%
Visibility—
Dew point45°
Wed, 2159° / 50°0Overcast
59 °Overcast

Lacy, Wednesday, 21 October

Overcast. High 59°, low 50°.

Pressure29.94 inHg
Wind19.5 mph NW
Humidity46%
Visibility—
Dew point35°
Thu, 2264° / 44°0Mostly clear
64 °Mostly clear

Lacy, Thursday, 22 October

Mostly clear. High 64°, low 44°.

Pressure29.88 inHg
Wind14 mph SE
Humidity37%
Visibility—
Dew point31°
Fri, 2354° / 43°0.21Rain
54 °Rain

Lacy, Friday, 23 October

Rain. High 54°, low 43°.

Pressure30.03 inHg
Wind22 mph NW
Humidity48%
Visibility—
Dew point32°
Sat, 2456° / 40°0Clear
56 °Clear

Lacy, Saturday, 24 October

Clear. High 56°, low 40°.

Pressure30.12 inHg
Wind17.2 mph NW
Humidity35%
Visibility—
Dew point26°

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 Lacy, 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 Lacy, 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.