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As of 12:08 MDT

Weather in Roy Summit, ID

88°Current weather

Roy Summit, Saturday, 8 August, 12:08

Overcast. Feels like 84°. High 95°, low 63°.

Pressure29.91 inHg
Wind6.3 mph W
Humidity19%
Visibility6.2 mi
Dew point39°
Sun, 0995° / 63°0Mostly clear
95 °Mostly clear

Roy Summit, Sunday, 9 August

Mostly clear. High 95°, low 63°.

Pressure29.83 inHg
Wind5.5 mph SW
Humidity13%
Visibility6.2 mi
Dew point32°
Mon, 1092° / 66°0Light rain
92 °Light rain

Roy Summit, Monday, 10 August

Light rain. High 92°, low 66°.

Pressure29.85 inHg
Wind12.9 mph S
Humidity23%
Visibility6.2 mi
Dew point45°
Tue, 1194° / 65°0Mostly clear
94 °Mostly clear

Roy Summit, Tuesday, 11 August

Mostly clear. High 94°, low 65°.

Pressure29.88 inHg
Wind5.3 mph W
Humidity9%
Visibility6.2 mi
Dew point23°
Wed, 1288° / 72°0Overcast
88 °Overcast

Roy Summit, Wednesday, 12 August

Overcast. High 88°, low 72°.

Pressure29.85 inHg
Wind13 mph NW
Humidity10%
Visibility6.2 mi
Dew point24°
Thu, 1391° / 66°0Overcast
91 °Overcast

Roy Summit, Thursday, 13 August

Overcast. High 91°, low 66°.

Pressure29.83 inHg
Wind11.1 mph W
Humidity18%
Visibility—
Dew point36°
Fri, 1479° / 69°0.09Light rain
79 °Light rain

Roy Summit, Friday, 14 August

Light rain. High 79°, low 69°.

Pressure29.94 inHg
Wind13.9 mph S
Humidity46%
Visibility—
Dew point52°
Sat, 1582° / 62°0.1Light rain
82 °Light rain

Roy Summit, Saturday, 15 August

Light rain. High 82°, low 62°.

Pressure30.06 inHg
Wind15.6 mph NW
Humidity38%
Visibility—
Dew point45°
Sun, 1685° / 60°0.16Rain
85 °Rain

Roy Summit, Sunday, 16 August

Rain. High 85°, low 60°.

Pressure30.03 inHg
Wind14.4 mph SW
Humidity26%
Visibility—
Dew point42°
Mon, 1787° / 62°0Overcast
87 °Overcast

Roy Summit, Monday, 17 August

Overcast. High 87°, low 62°.

Pressure30.06 inHg
Wind11 mph S
Humidity33%
Visibility—
Dew point46°
Tue, 1884° / 65°0.13Light rain
84 °Light rain

Roy Summit, Tuesday, 18 August

Light rain. High 84°, low 65°.

Pressure30.03 inHg
Wind10.9 mph S
Humidity43%
Visibility—
Dew point52°
Wed, 1987° / 65°0.05Light rain
87 °Light rain

Roy Summit, Wednesday, 19 August

Light rain. High 87°, low 65°.

Pressure29.94 inHg
Wind12.2 mph S
Humidity33%
Visibility—
Dew point48°
Thu, 2089° / 67°0Overcast
89 °Overcast

Roy Summit, Thursday, 20 August

Overcast. High 89°, low 67°.

Pressure29.91 inHg
Wind17.7 mph S
Humidity32%
Visibility—
Dew point49°
Fri, 2186° / 66°0.02Light rain
86 °Light rain

Roy Summit, Friday, 21 August

Light rain. High 86°, low 66°.

Pressure30.00 inHg
Wind19 mph S
Humidity45%
Visibility—
Dew point54°
Sat, 2287° / 64°0.02Light rain
87 °Light rain

Roy Summit, Saturday, 22 August

Light rain. High 87°, low 64°.

Pressure29.94 inHg
Wind7.7 mph SW
Humidity31%
Visibility—
Dew point47°
Sun, 2385° / 65°0.01Light rain
85 °Light rain

Roy Summit, Sunday, 23 August

Light rain. High 85°, low 65°.

Pressure29.97 inHg
Wind13.6 mph NW
Humidity29%
Visibility—
Dew point43°

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 Roy Summit, ID 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 Roy Summit, ID 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.