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As of 21:34 MDT

Weather in Keystone, SD

46°Current weather

Keystone, Wednesday, 14 October, 21:34

Overcast. Feels like 46°. High 48°, low 38°.

Pressure30.12 inHg
Wind2.8 mph S
Humidity79%
Visibility2.5 mi
Dew point40°

10-day forecast for Keystone, SD: 25° to 75°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.

75°
Best day: Saturday, October 17
48° · 0.19 in
Worst day: Wednesday, October 14

Tap any day below to see morning, afternoon, evening and overnight.

Thu, 1546° / 31°0.08Rain
MorningPartly cloudy40°feels 31°
AfternoonClear46°feels 39°
EveningPartly cloudy34°feels 23°
OvernightRain45°feels 43°
46 °Rain

Keystone, Thursday, 15 October

Rain. High 46°, low 31°.

Pressure30.36 inHg
Wind15.6 mph NW
Humidity45%
Visibility6.2 mi
Dew point17°
Fri, 1655° / 25°0Clear
MorningClear28°feels 21°
AfternoonClear53°feels 50°
EveningClear43°feels 37°
OvernightClear28°feels 18°
55 °Clear

Keystone, Friday, 16 October

Clear. High 55°, low 25°.

Pressure30.62 inHg
Wind5.8 mph SE
Humidity47%
Visibility6.2 mi
Dew point20°
Sat, 1775° / 46°0Clear
MorningClear53°feels 49°
AfternoonClear75°feels 73°
EveningMostly clear51°feels 48°
OvernightClear48°feels 43°
75 °Clear

Keystone, Saturday, 17 October

Clear. High 75°, low 46°.

Pressure30.03 inHg
Wind1.7 mph S
Humidity20%
Visibility6.2 mi
Dew point27°
Sun, 1859° / 44°0Clear
MorningClear53°feels 50°
AfternoonClear59°feels 57°
EveningMostly clear46°feels 46°
OvernightPartly cloudy45°feels 40°
59 °Clear

Keystone, Sunday, 18 October

Clear. High 59°, low 44°.

Pressure30.15 inHg
Wind7.2 mph NE
Humidity38%
Visibility6.2 mi
Dew point34°
Mon, 1961° / 34°0Clear
MorningClear42°feels 41°
AfternoonClear57°feels 55°
EveningClear49°feels 46°
OvernightClear43°feels 39°
61 °Clear

Keystone, Monday, 19 October

Clear. High 61°, low 34°.

Pressure30.06 inHg
Wind8.6 mph SE
Humidity45%
Visibility—
Dew point34°
Tue, 2069° / 48°0Clear
MorningClear56°feels 53°
AfternoonClear67°feels 65°
EveningClear56°feels 54°
OvernightClear53°feels 51°
69 °Clear

Keystone, Tuesday, 20 October

Clear. High 69°, low 48°.

Pressure29.88 inHg
Wind10.6 mph SW
Humidity29%
Visibility—
Dew point33°
Wed, 2170° / 52°0Light rain
MorningLight rain57°feels 54°
AfternoonLight rain66°feels 64°
EveningLight rain57°feels 56°
OvernightLight rain54°feels 52°
70 °Light rain

Keystone, Wednesday, 21 October

Light rain. High 70°, low 52°.

Pressure29.77 inHg
Wind10.3 mph SE
Humidity31%
Visibility—
Dew point34°
Thu, 2261° / 44°0Partly cloudy
MorningPartly cloudy54°feels 53°
AfternoonPartly cloudy60°feels 58°
EveningPartly cloudy49°feels 46°
OvernightPartly cloudy45°feels 41°
61 °Partly cloudy

Keystone, Thursday, 22 October

Partly cloudy. High 61°, low 44°.

Pressure29.53 inHg
Wind18.4 mph W
Humidity46%
Visibility—
Dew point39°
Fri, 2348° / 34°0.01Light rain
MorningLight rain43°feels 37°
AfternoonLight rain46°feels 43°
EveningLight rain39°feels 32°
OvernightLight rain35°feels 27°
48 °Light rain

Keystone, Friday, 23 October

Light rain. High 48°, low 34°.

Pressure29.83 inHg
Wind12.8 mph NW
Humidity39%
Visibility—
Dew point23°

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 Keystone, 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.