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As of 13:45 CDT

Weather in Thomas, SD

80°Current weather

Thomas, Saturday, 8 August, 13:45

Clear. Feels like 80°. High 84°, low 54°.

Pressure29.91 inHg
Wind11.5 mph S
Humidity42%
Visibility6.2 mi
Dew point55°
Sun, 0982° / 61°0.14Rain
82 °Rain

Thomas, Sunday, 9 August

Rain. High 82°, low 61°.

Pressure29.83 inHg
Wind13.3 mph NE
Humidity52%
Visibility6.2 mi
Dew point63°
Mon, 1097° / 58°0.12Rain
97 °Rain

Thomas, Monday, 10 August

Rain. High 97°, low 58°.

Pressure29.83 inHg
Wind10.8 mph E
Humidity36%
Visibility6.2 mi
Dew point57°
Tue, 1192° / 63°0.01Light rain
92 °Light rain

Thomas, Tuesday, 11 August

Light rain. High 92°, low 63°.

Pressure29.83 inHg
Wind7.6 mph NE
Humidity43%
Visibility6.2 mi
Dew point60°
Wed, 1291° / 62°0.06Light rain
91 °Light rain

Thomas, Wednesday, 12 August

Light rain. High 91°, low 62°.

Pressure29.88 inHg
Wind9.4 mph E
Humidity32%
Visibility6.2 mi
Dew point52°
Thu, 1380° / 55°0Overcast
80 °Overcast

Thomas, Thursday, 13 August

Overcast. High 80°, low 55°.

Pressure30.06 inHg
Wind12.8 mph NE
Humidity33%
Visibility—
Dew point43°
Fri, 1487° / 55°0Clear
87 °Clear

Thomas, Friday, 14 August

Clear. High 87°, low 55°.

Pressure30.15 inHg
Wind14.7 mph SE
Humidity20%
Visibility—
Dew point34°
Sat, 1582° / 63°0Overcast
82 °Overcast

Thomas, Saturday, 15 August

Overcast. High 82°, low 63°.

Pressure30.09 inHg
Wind18.8 mph S
Humidity50%
Visibility—
Dew point51°
Sun, 1694° / 65°0.62Heavy rain
94 °Heavy rain

Thomas, Sunday, 16 August

Heavy rain. High 94°, low 65°.

Pressure29.91 inHg
Wind24.9 mph N
Humidity36%
Visibility—
Dew point59°
Mon, 1788° / 63°0Overcast
88 °Overcast

Thomas, Monday, 17 August

Overcast. High 88°, low 63°.

Pressure30.03 inHg
Wind8.9 mph SE
Humidity45%
Visibility—
Dew point58°
Tue, 1896° / 65°0.04Light rain
96 °Light rain

Thomas, Tuesday, 18 August

Light rain. High 96°, low 65°.

Pressure29.91 inHg
Wind10.1 mph NW
Humidity35%
Visibility—
Dew point57°
Wed, 1970° / 63°0.11Light rain
70 °Light rain

Thomas, Wednesday, 19 August

Light rain. High 70°, low 63°.

Pressure30.00 inHg
Wind15.4 mph NE
Humidity68%
Visibility—
Dew point57°
Thu, 2084° / 60°0Mostly clear
84 °Mostly clear

Thomas, Thursday, 20 August

Mostly clear. High 84°, low 60°.

Pressure30.00 inHg
Wind8.4 mph NE
Humidity35%
Visibility—
Dew point50°
Fri, 2194° / 65°0.01Light rain
94 °Light rain

Thomas, Friday, 21 August

Light rain. High 94°, low 65°.

Pressure29.88 inHg
Wind8.7 mph SW
Humidity26%
Visibility—
Dew point47°
Sat, 2273° / 54°0.04Light rain
73 °Light rain

Thomas, Saturday, 22 August

Light rain. High 73°, low 54°.

Pressure30.12 inHg
Wind16.8 mph NE
Humidity31%
Visibility—
Dew point36°
Sun, 2379° / 48°0Overcast
79 °Overcast

Thomas, Sunday, 23 August

Overcast. High 79°, low 48°.

Pressure30.18 inHg
Wind9.7 mph E
Humidity24%
Visibility—
Dew point32°

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 Thomas, 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 Thomas, 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.