10-day forecast for Erwin, SD: 56° to 99°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
91°
Best day: Wednesday, August 12
99° · 0.44 in
Worst day: Tuesday, August 18
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1085° / 59°0.13
Morning62°feels 61°
Afternoon82°feels 80°
Evening85°feels 84°
Overnight66°feels 64°
85 °
Erwin, Monday, 10 August
Rain. High 85°, low 59°.
Pressure29.85 inHg
Wind9.3 mph SE
Humidity41%
Visibility6.2 mi
Dew point58°
Tue, 1190° / 62°0.09
Morning65°feels 65°
Afternoon89°feels 88°
Evening82°feels 82°
Overnight64°feels 64°
90 °
Erwin, Tuesday, 11 August
Rain. High 90°, low 62°.
Pressure29.83 inHg
Wind8.9 mph NE
Humidity39%
Visibility6.2 mi
Dew point57°
Wed, 1291° / 61°0
Morning66°feels 64°
Afternoon89°feels 85°
Evening79°feels 79°
Overnight67°feels 65°
91 °
Erwin, Wednesday, 12 August
Clear. High 91°, low 61°.
Pressure29.91 inHg
Wind9 mph SE
Humidity24%
Visibility6.2 mi
Dew point45°
Thu, 1368° / 61°0.01
Morning64°feels 63°
Afternoon67°feels 66°
Evening67°feels 67°
Overnight67°feels 66°
68 °
Erwin, Thursday, 13 August
Light rain. High 68°, low 61°.
Pressure30.06 inHg
Wind12 mph E
Humidity50%
Visibility—
Dew point47°
Fri, 1480° / 56°0
Morning63°feels 63°
Afternoon78°feels 78°
Evening68°feels 67°
Overnight64°feels 64°
80 °
Erwin, Friday, 14 August
Overcast. High 80°, low 56°.
Pressure30.09 inHg
Wind13.8 mph S
Humidity28%
Visibility—
Dew point41°
Sat, 1574° / 60°0.01
Morning61°feels 61°
Afternoon66°feels 66°
Evening73°feels 74°
Overnight68°feels 68°
74 °
Erwin, Saturday, 15 August
Light rain. High 74°, low 60°.
Pressure30.12 inHg
Wind9.6 mph SE
Humidity85%
Visibility—
Dew point59°
Sun, 1689° / 63°0
Morning69°feels 69°
Afternoon86°feels 83°
Evening84°feels 81°
Overnight69°feels 68°
89 °
Erwin, Sunday, 16 August
Overcast. High 89°, low 63°.
Pressure30.12 inHg
Wind8.8 mph N
Humidity27%
Visibility—
Dew point45°
Mon, 1785° / 62°0.04
Morning68°feels 68°
Afternoon82°feels 83°
Evening79°feels 81°
Overnight71°feels 71°
85 °
Erwin, Monday, 17 August
Light rain. High 85°, low 62°.
Pressure29.97 inHg
Wind16.7 mph SE
Humidity52%
Visibility—
Dew point60°
Tue, 1899° / 69°0.44
Morning76°feels 78°
Afternoon94°feels 96°
Evening92°feels 95°
Overnight71°feels 71°
99 °
Erwin, Tuesday, 18 August
Rain. High 99°, low 69°.
Pressure29.74 inHg
Wind14 mph S
Humidity39%
Visibility—
Dew point62°
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 Erwin, 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.