10-day forecast for Thomas, SD: 54° to 94°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
92°
Best day: Monday, August 17
84° · 0.35 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0982° / 62°0.17
Morning62°feels 62°
Afternoon81°feels 81°
Evening79°feels 79°
Overnight64°feels 64°
82 °
Thomas, Sunday, 9 August
Rain. High 82°, low 62°.
Pressure29.80 inHg
Wind10.2 mph NE
Humidity54%
Visibility6.2 mi
Dew point65°
Mon, 1094° / 59°0.17
Morning61°feels 60°
Afternoon90°feels 88°
Evening87°feels 86°
Overnight64°feels 62°
94 °
Thomas, Monday, 10 August
Rain. High 94°, low 59°.
Pressure29.85 inHg
Wind11.3 mph E
Humidity32%
Visibility6.2 mi
Dew point53°
Tue, 1184° / 64°0.35
Morning67°feels 67°
Afternoon83°feels 83°
Evening77°feels 77°
Overnight65°feels 65°
84 °
Thomas, Tuesday, 11 August
Heavy rain. High 84°, low 64°.
Pressure29.85 inHg
Wind10.2 mph NE
Humidity54%
Visibility6.2 mi
Dew point61°
Wed, 1284° / 61°0
Morning66°feels 65°
Afternoon84°feels 82°
Evening74°feels 73°
Overnight66°feels 64°
84 °
Thomas, Wednesday, 12 August
Clear. High 84°, low 61°.
Pressure29.94 inHg
Wind11.5 mph E
Humidity32%
Visibility6.2 mi
Dew point49°
Thu, 1373° / 61°0.02
Morning63°feels 62°
Afternoon69°feels 67°
Evening71°feels 71°
Overnight62°feels 61°
73 °
Thomas, Thursday, 13 August
Light rain. High 73°, low 61°.
Pressure30.06 inHg
Wind11.9 mph SE
Humidity49%
Visibility—
Dew point47°
Fri, 1483° / 56°0
Morning64°feels 63°
Afternoon82°feels 80°
Evening76°feels 75°
Overnight62°feels 61°
83 °
Thomas, Friday, 14 August
Overcast. High 83°, low 56°.
Pressure30.09 inHg
Wind13.9 mph E
Humidity31%
Visibility—
Dew point45°
Sat, 1583° / 60°0
Morning67°feels 66°
Afternoon81°feels 80°
Evening72°feels 72°
Overnight68°feels 68°
83 °
Thomas, Saturday, 15 August
Overcast. High 83°, low 60°.
Pressure30.12 inHg
Wind12.3 mph S
Humidity33%
Visibility—
Dew point48°
Sun, 1684° / 59°0.05
Morning66°feels 67°
Afternoon81°feels 82°
Evening75°feels 75°
Overnight65°feels 65°
84 °
Thomas, Sunday, 16 August
Light rain. High 84°, low 59°.
Pressure30.06 inHg
Wind10.9 mph NE
Humidity50%
Visibility—
Dew point58°
Mon, 1792° / 58°0.04
Morning66°feels 65°
Afternoon86°feels 87°
Evening88°feels 87°
Overnight73°feels 73°
92 °
Thomas, Monday, 17 August
Light rain. High 92°, low 58°.
Pressure29.97 inHg
Wind10.9 mph SW
Humidity47%
Visibility—
Dew point59°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Thomas, SD around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.