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As of 23:15 MDT

Weather in Keystone, WY

47°Current weather

Keystone, Friday, 9 October, 23:15

Clear. Feels like 46°. High 69°, low 38°.

Pressure29.88 inHg
Wind3 mph S
Humidity52%
Visibility6.2 mi
Dew point31°
Sat, 1062° / 41°0.05Light rain
62 °Light rain

Keystone, Saturday, 10 October

Light rain. High 62°, low 41°.

Pressure29.77 inHg
Wind17 mph SW
Humidity39%
Visibility6.2 mi
Dew point31°
Sun, 1159° / 42°0.11Light rain
59 °Light rain

Keystone, Sunday, 11 October

Light rain. High 59°, low 42°.

Pressure29.80 inHg
Wind14.1 mph SW
Humidity57%
Visibility6.2 mi
Dew point38°
Mon, 1255° / 38°0Mostly clear
55 °Mostly clear

Keystone, Monday, 12 October

Mostly clear. High 55°, low 38°.

Pressure29.83 inHg
Wind17.4 mph SW
Humidity44%
Visibility6.2 mi
Dew point29°
Tue, 1353° / 35°0.19Rain
53 °Rain

Keystone, Tuesday, 13 October

Rain. High 53°, low 35°.

Pressure29.85 inHg
Wind11.1 mph SW
Humidity42%
Visibility6.2 mi
Dew point29°
Wed, 1442° / 33°0.5Snow
42 °Snow

Keystone, Wednesday, 14 October

Snow. High 42°, low 33°.

Pressure30.06 inHg
Wind11.7 mph E
Humidity78%
Visibility—
Dew point35°
Thu, 1543° / 24°0.1Snow
43 °Snow

Keystone, Thursday, 15 October

Snow. High 43°, low 24°.

Pressure30.24 inHg
Wind11.7 mph N
Humidity61%
Visibility—
Dew point27°
Fri, 1636° / 21°0.02Light snow
36 °Light snow

Keystone, Friday, 16 October

Light snow. High 36°, low 21°.

Pressure30.39 inHg
Wind13.2 mph NW
Humidity65%
Visibility—
Dew point22°
Sat, 1752° / 21°0Clear
52 °Clear

Keystone, Saturday, 17 October

Clear. High 52°, low 21°.

Pressure30.24 inHg
Wind16.7 mph W
Humidity29%
Visibility—
Dew point14°
Sun, 1852° / 33°0Overcast
52 °Overcast

Keystone, Sunday, 18 October

Overcast. High 52°, low 33°.

Pressure30.03 inHg
Wind17 mph W
Humidity46%
Visibility—
Dew point28°
Mon, 1951° / 34°0.04Snow
51 °Snow

Keystone, Monday, 19 October

Snow. High 51°, low 34°.

Pressure29.85 inHg
Wind12.4 mph NW
Humidity45%
Visibility—
Dew point29°
Tue, 2042° / 29°0.15Snow
42 °Snow

Keystone, Tuesday, 20 October

Snow. High 42°, low 29°.

Pressure29.80 inHg
Wind17.8 mph W
Humidity62%
Visibility—
Dew point29°
Wed, 2135° / 19°0.09Light snow
35 °Light snow

Keystone, Wednesday, 21 October

Light snow. High 35°, low 19°.

Pressure30.18 inHg
Wind23.6 mph W
Humidity55%
Visibility—
Dew point15°
Thu, 2248° / 23°0Clear
48 °Clear

Keystone, Thursday, 22 October

Clear. High 48°, low 23°.

Pressure29.88 inHg
Wind17.6 mph SW
Humidity27%
Visibility—
Dew point13°
Fri, 2330° / 17°0.23Snow
30 °Snow

Keystone, Friday, 23 October

Snow. High 30°, low 17°.

Pressure30.30 inHg
Wind18.2 mph W
Humidity65%
Visibility—
Dew point17°
Sat, 2436° / 14°0Clear
36 °Clear

Keystone, Saturday, 24 October

Clear. High 36°, low 14°.

Pressure30.33 inHg
Wind14.5 mph W
Humidity41%
Visibility—
Dew point10°

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 Keystone, WY 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 Keystone, WY 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.