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As of 13:10 MDT

Weather in Keystone, SD

48°Current weather

Keystone, Wednesday, 14 October, 13:10

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

Pressure30.12 inHg
Wind4.9 mph SE
Humidity72%
Visibility6.2 mi
Dew point39°

10-day forecast for Keystone, SD: 28° to 73°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.

73°
Best day: Tuesday, October 20
51° · 0.53 in
Worst day: Friday, October 23

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

Thu, 1544° / 31°0Clear
MorningOvercast39°feels 31°
AfternoonClear44°feels 37°
EveningPartly cloudy33°feels 22°
OvernightOvercast42°feels 38°
44 °Clear

Keystone, Thursday, 15 October

Clear. High 44°, low 31°.

Pressure30.36 inHg
Wind15.6 mph NW
Humidity44%
Visibility6.2 mi
Dew point18°
Fri, 1655° / 28°0Clear
MorningClear31°feels 24°
AfternoonClear54°feels 50°
EveningClear45°feels 39°
OvernightClear31°feels 21°
55 °Clear

Keystone, Friday, 16 October

Clear. High 55°, low 28°.

Pressure30.65 inHg
Wind5.7 mph SE
Humidity40%
Visibility6.2 mi
Dew point7°
Sat, 1773° / 48°0Clear
MorningClear53°feels 50°
AfternoonMostly clear72°feels 70°
EveningOvercast51°feels 48°
OvernightClear50°feels 47°
73 °Clear

Keystone, Saturday, 17 October

Clear. High 73°, low 48°.

Pressure30.03 inHg
Wind2.6 mph SE
Humidity21%
Visibility6.2 mi
Dew point29°
Sun, 1860° / 39°0Overcast
MorningClear52°feels 49°
AfternoonOvercast59°feels 56°
EveningOvercast49°feels 49°
OvernightOvercast41°feels 37°
60 °Overcast

Keystone, Sunday, 18 October

Overcast. High 60°, low 39°.

Pressure30.12 inHg
Wind11.2 mph N
Humidity36%
Visibility6.2 mi
Dew point33°
Mon, 1969° / 37°0Overcast
MorningOvercast46°feels 43°
AfternoonOvercast63°feels 60°
EveningOvercast54°feels 51°
OvernightOvercast46°feels 43°
69 °Overcast

Keystone, Monday, 19 October

Overcast. High 69°, low 37°.

Pressure29.91 inHg
Wind7.1 mph SW
Humidity32%
Visibility—
Dew point31°
Tue, 2073° / 49°0Clear
MorningClear57°feels 54°
AfternoonClear70°feels 68°
EveningClear57°feels 54°
OvernightClear53°feels 49°
73 °Clear

Keystone, Tuesday, 20 October

Clear. High 73°, low 49°.

Pressure29.80 inHg
Wind10.6 mph W
Humidity17%
Visibility—
Dew point23°
Wed, 2161° / 45°0Overcast
MorningOvercast53°feels 51°
AfternoonOvercast59°feels 56°
EveningOvercast48°feels 46°
OvernightOvercast46°feels 44°
61 °Overcast

Keystone, Wednesday, 21 October

Overcast. High 61°, low 45°.

Pressure30.00 inHg
Wind9.4 mph NE
Humidity34%
Visibility—
Dew point31°
Thu, 2263° / 43°0Overcast
MorningOvercast47°feels 44°
AfternoonOvercast59°feels 57°
EveningOvercast56°feels 54°
OvernightOvercast51°feels 48°
63 °Overcast

Keystone, Thursday, 22 October

Overcast. High 63°, low 43°.

Pressure30.03 inHg
Wind15.3 mph S
Humidity37%
Visibility—
Dew point31°
Fri, 2351° / 38°0.53Snow
MorningSnow51°feels 50°
AfternoonSnow48°feels 46°
EveningSnow38°feels 28°
OvernightSnow41°feels 32°
51 °Snow

Keystone, Friday, 23 October

Snow. High 51°, low 38°.

Pressure29.65 inHg
Wind25 mph NW
Humidity92%
Visibility—
Dew point48°

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.