As of 05:22 MDT

Weather in Grass Creek, WY

59°

Grass Creek, Sunday, 9 August, 05:22

Partly cloudy. Feels like 56°. High 90°, low 58°.

Pressure29.83 inHg

Wind6 mph SW

Humidity33%

Visibility6.2 mi

Dew point29°

See detailed hourly forecast

Mon, 1091° / 57°

91 °

Grass Creek, Monday, 10 August

Light rain. High 91°, low 57°.

Pressure29.77 inHg

Wind6.2 mph N

Humidity10%

Visibility6.2 mi

Dew point25°

Tue, 1192° / 67°

92 °

Grass Creek, Tuesday, 11 August

Clear. High 92°, low 67°.

Pressure29.85 inHg

Wind10.4 mph E

Humidity13%

Visibility6.2 mi

Dew point28°

Wed, 1284° / 65°

84 °

Grass Creek, Wednesday, 12 August

Overcast. High 84°, low 65°.

Pressure29.83 inHg

Wind8.3 mph N

Humidity21%

Visibility6.2 mi

Dew point36°

Thu, 1378° / 62°

0.04

78 °

Grass Creek, Thursday, 13 August

Light rain. High 78°, low 62°.

Pressure29.77 inHg

Wind16.8 mph NW

Humidity32%

Visibility—

Dew point44°

Fri, 1473° / 60°

0.26

73 °

Grass Creek, Friday, 14 August

Light rain. High 73°, low 60°.

Pressure29.85 inHg

Wind20.6 mph N

Humidity50%

Visibility—

Dew point52°

Sat, 1576° / 55°

76 °

Grass Creek, Saturday, 15 August

Light rain. High 76°, low 55°.

Pressure30.12 inHg

Wind10.1 mph E

Humidity46%

Visibility—

Dew point46°

Sun, 1685° / 66°

0.01

85 °

Grass Creek, Sunday, 16 August

Light rain. High 85°, low 66°.

Pressure29.94 inHg

Wind20.2 mph SW

Humidity26%

Visibility—

Dew point42°

Mon, 1786° / 66°

86 °

Grass Creek, Monday, 17 August

Partly cloudy. High 86°, low 66°.

Pressure29.91 inHg

Wind15.4 mph SW

Humidity24%

Visibility—

Dew point39°

Tue, 1885° / 65°

85 °

Grass Creek, Tuesday, 18 August

Light rain. High 85°, low 65°.

Pressure29.80 inHg

Wind13 mph SW

Humidity20%

Visibility—

Dew point37°

Wed, 1985° / 64°

85 °

Grass Creek, Wednesday, 19 August

Overcast. High 85°, low 64°.

Pressure29.91 inHg

Wind15.9 mph W

Humidity27%

Visibility—

Dew point40°

Thu, 2083° / 65°

0.06

83 °

Grass Creek, Thursday, 20 August

Light rain. High 83°, low 65°.

Pressure29.88 inHg

Wind13.7 mph NE

Humidity28%

Visibility—

Dew point42°

Fri, 2180° / 64°

0.27

80 °

Grass Creek, Friday, 21 August

Rain. High 80°, low 64°.

Pressure29.83 inHg

Wind9.6 mph NW

Humidity29%

Visibility—

Dew point43°

Sat, 2279° / 61°

0.01

79 °

Grass Creek, Saturday, 22 August

Light rain. High 79°, low 61°.

Pressure29.77 inHg

Wind19.8 mph SW

Humidity28%

Visibility—

Dew point41°

Sun, 2382° / 63°

82 °

Grass Creek, Sunday, 23 August

Overcast. High 82°, low 63°.

Pressure29.85 inHg

Wind17.8 mph W

Humidity23%

Visibility—

Dew point35°

Mon, 2481° / 60°

81 °

Grass Creek, Monday, 24 August

Clear. High 81°, low 60°.

Pressure29.85 inHg

Wind12.1 mph NE

Humidity19%

Visibility—

Dew point32°

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 Grass Creek, 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 Grass Creek, 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.