As of 02:56 MDT

Weather in Lacy, SD

47°

Lacy, Monday, 12 October, 02:56

Overcast. Feels like 44°. High 58°, low 47°.

Pressure29.77 inHg

Wind5.4 mph NE

Humidity89%

Visibility6.2 mi

Dew point44°

See detailed hourly forecast

Tue, 1352° / 43°

0.25

52 °

Lacy, Tuesday, 13 October

Rain. High 52°, low 43°.

Pressure30.09 inHg

Wind7.9 mph NW

Humidity67%

Visibility6.2 mi

Dew point38°

Wed, 1457° / 42°

0.09

57 °

Lacy, Wednesday, 14 October

Rain. High 57°, low 42°.

Pressure30.24 inHg

Wind5.1 mph SE

Humidity59%

Visibility4.4 mi

Dew point41°

Thu, 1559° / 47°

0.01

59 °

Lacy, Thursday, 15 October

Light rain. High 59°, low 47°.

Pressure30.33 inHg

Wind17.3 mph N

Humidity44%

Visibility6.2 mi

Dew point38°

Fri, 1654° / 39°

54 °

Lacy, Friday, 16 October

Clear. High 54°, low 39°.

Pressure30.74 inHg

Wind14.1 mph S

Humidity58%

Visibility—

Dew point34°

Sat, 1769° / 44°

69 °

Lacy, Saturday, 17 October

Overcast. High 69°, low 44°.

Pressure29.94 inHg

Wind14.4 mph S

Humidity37%

Visibility—

Dew point34°

Sun, 1876° / 53°

76 °

Lacy, Sunday, 18 October

Partly cloudy. High 76°, low 53°.

Pressure29.83 inHg

Wind7 mph E

Humidity19%

Visibility—

Dew point26°

Mon, 1972° / 55°

72 °

Lacy, Monday, 19 October

Clear. High 72°, low 55°.

Pressure30.03 inHg

Wind9.3 mph SE

Humidity31%

Visibility—

Dew point35°

Tue, 2076° / 50°

76 °

Lacy, Tuesday, 20 October

Clear. High 76°, low 50°.

Pressure29.88 inHg

Wind18.9 mph S

Humidity40%

Visibility—

Dew point42°

Wed, 2176° / 59°

0.01

76 °

Lacy, Wednesday, 21 October

Light rain. High 76°, low 59°.

Pressure29.83 inHg

Wind14.4 mph S

Humidity48%

Visibility—

Dew point51°

Thu, 2266° / 52°

0.04

66 °

Lacy, Thursday, 22 October

Light rain. High 66°, low 52°.

Pressure30.06 inHg

Wind10.8 mph N

Humidity45%

Visibility—

Dew point38°

Fri, 2362° / 46°

62 °

Lacy, Friday, 23 October

Clear. High 62°, low 46°.

Pressure30.45 inHg

Wind16.5 mph SE

Humidity29%

Visibility—

Dew point24°

Sat, 2466° / 52°

0.28

66 °

Lacy, Saturday, 24 October

Light rain. High 66°, low 52°.

Pressure29.83 inHg

Wind19.2 mph S

Humidity72%

Visibility—

Dew point54°

Sun, 2560° / 48°

0.03

60 °

Lacy, Sunday, 25 October

Light rain. High 60°, low 48°.

Pressure30.21 inHg

Wind28.7 mph N

Humidity30%

Visibility—

Dew point24°

Mon, 2665° / 45°

65 °

Lacy, Monday, 26 October

Clear. High 65°, low 45°.

Pressure30.12 inHg

Wind11.4 mph S

Humidity24%

Visibility—

Dew point22°

Tue, 2774° / 52°

74 °

Lacy, Tuesday, 27 October

Clear. High 74°, low 52°.

Pressure29.83 inHg

Wind12.8 mph S

Humidity30%

Visibility—

Dew point34°

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.