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As of 02:03 MDT

Weather in Keystone, WY

42°Current weather

Keystone, Friday, 9 October, 02:03

Clear. Feels like 42°. High 66°, low 39°.

Pressure30.06 inHg
Wind2.3 mph W
Humidity62%
Visibility6.2 mi
Dew point30°
Sat, 1062° / 40°0.07Light rain
62 °Light rain

Keystone, Saturday, 10 October

Light rain. High 62°, low 40°.

Pressure29.77 inHg
Wind15.3 mph SW
Humidity38%
Visibility6.2 mi
Dew point30°
Sun, 1156° / 40°0.08Light rain
56 °Light rain

Keystone, Sunday, 11 October

Light rain. High 56°, low 40°.

Pressure29.80 inHg
Wind12.6 mph SW
Humidity50%
Visibility6.2 mi
Dew point35°
Mon, 1251° / 39°0.03Light rain
51 °Light rain

Keystone, Monday, 12 October

Light rain. High 51°, low 39°.

Pressure29.88 inHg
Wind17.7 mph SW
Humidity50%
Visibility6.2 mi
Dew point31°
Tue, 1351° / 34°0.2Rain
51 °Rain

Keystone, Tuesday, 13 October

Rain. High 51°, low 34°.

Pressure29.94 inHg
Wind10 mph E
Humidity53%
Visibility—
Dew point30°
Wed, 1440° / 31°0.21Snow
40 °Snow

Keystone, Wednesday, 14 October

Snow. High 40°, low 31°.

Pressure29.85 inHg
Wind17.3 mph W
Humidity88%
Visibility—
Dew point30°
Thu, 1539° / 25°0.48Snow
39 °Snow

Keystone, Thursday, 15 October

Snow. High 39°, low 25°.

Pressure29.94 inHg
Wind15.1 mph W
Humidity61%
Visibility—
Dew point26°
Fri, 1627° / 14°0.28Snow
27 °Snow

Keystone, Friday, 16 October

Snow. High 27°, low 14°.

Pressure30.50 inHg
Wind12.3 mph E
Humidity85%
Visibility—
Dew point20°
Sat, 1743° / 12°0Clear
43 °Clear

Keystone, Saturday, 17 October

Clear. High 43°, low 12°.

Pressure30.30 inHg
Wind6 mph SW
Humidity67%
Visibility—
Dew point26°
Sun, 1839° / 24°0.02Light snow
39 °Light snow

Keystone, Sunday, 18 October

Light snow. High 39°, low 24°.

Pressure30.24 inHg
Wind13.6 mph E
Humidity60%
Visibility—
Dew point25°
Mon, 1936° / 27°0.09Light snow
36 °Light snow

Keystone, Monday, 19 October

Light snow. High 36°, low 27°.

Pressure30.18 inHg
Wind9.4 mph W
Humidity92%
Visibility—
Dew point31°
Tue, 2047° / 24°0Clear
47 °Clear

Keystone, Tuesday, 20 October

Clear. High 47°, low 24°.

Pressure30.15 inHg
Wind8.5 mph SW
Humidity57%
Visibility—
Dew point26°
Wed, 2149° / 27°0Partly cloudy
49 °Partly cloudy

Keystone, Wednesday, 21 October

Partly cloudy. High 49°, low 27°.

Pressure30.12 inHg
Wind11.7 mph W
Humidity44%
Visibility—
Dew point23°
Thu, 2248° / 28°0Clear
48 °Clear

Keystone, Thursday, 22 October

Clear. High 48°, low 28°.

Pressure30.30 inHg
Wind8.2 mph W
Humidity32%
Visibility—
Dew point16°
Fri, 2352° / 28°0Clear
52 °Clear

Keystone, Friday, 23 October

Clear. High 52°, low 28°.

Pressure30.12 inHg
Wind21.1 mph W
Humidity24%
Visibility—
Dew point13°
Sat, 2450° / 31°0Clear
50 °Clear

Keystone, Saturday, 24 October

Clear. High 50°, low 31°.

Pressure30.15 inHg
Wind11.9 mph SW
Humidity36%
Visibility—
Dew point22°

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.