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As of 23:45 MDT

Weather in Roy Summit, ID

48°Current weather

Roy Summit, Sunday, 11 October, 23:45

Overcast. Feels like 47°. High 58°, low 46°.

Pressure29.77 inHg
Wind3.2 mph N
Humidity93%
Visibility6.2 mi
Dew point46°
Mon, 1248° / 43°0.27Rain
48 °Rain

Roy Summit, Monday, 12 October

Rain. High 48°, low 43°.

Pressure29.94 inHg
Wind5.8 mph NW
Humidity93%
Visibility1.4 mi
Dew point35°
Tue, 1345° / 35°0.08Snow
45 °Snow

Roy Summit, Tuesday, 13 October

Snow. High 45°, low 35°.

Pressure30.15 inHg
Wind8.8 mph NW
Humidity90%
Visibility3.9 mi
Dew point33°
Wed, 1452° / 35°0Clear
52 °Clear

Roy Summit, Wednesday, 14 October

Clear. High 52°, low 35°.

Pressure30.15 inHg
Wind9.2 mph NW
Humidity60%
Visibility6.2 mi
Dew point31°
Thu, 1562° / 39°0Clear
62 °Clear

Roy Summit, Thursday, 15 October

Clear. High 62°, low 39°.

Pressure30.45 inHg
Wind3.4 mph NE
Humidity52%
Visibility6.2 mi
Dew point35°
Fri, 1660° / 38°0Clear
60 °Clear

Roy Summit, Friday, 16 October

Clear. High 60°, low 38°.

Pressure30.45 inHg
Wind7.5 mph SE
Humidity43%
Visibility—
Dew point32°
Sat, 1762° / 42°0Clear
62 °Clear

Roy Summit, Saturday, 17 October

Clear. High 62°, low 42°.

Pressure30.18 inHg
Wind11.2 mph S
Humidity49%
Visibility—
Dew point36°
Sun, 1863° / 47°0Partly cloudy
63 °Partly cloudy

Roy Summit, Sunday, 18 October

Partly cloudy. High 63°, low 47°.

Pressure30.03 inHg
Wind11.8 mph S
Humidity41%
Visibility—
Dew point34°
Mon, 1960° / 48°0.01Light rain
60 °Light rain

Roy Summit, Monday, 19 October

Light rain. High 60°, low 48°.

Pressure29.88 inHg
Wind17.2 mph S
Humidity38%
Visibility—
Dew point31°
Tue, 2045° / 37°0.02Snow
45 °Snow

Roy Summit, Tuesday, 20 October

Snow. High 45°, low 37°.

Pressure30.03 inHg
Wind17.7 mph W
Humidity57%
Visibility—
Dew point27°
Wed, 2145° / 30°0Mostly clear
45 °Mostly clear

Roy Summit, Wednesday, 21 October

Mostly clear. High 45°, low 30°.

Pressure30.27 inHg
Wind16.2 mph W
Humidity49%
Visibility—
Dew point21°
Thu, 2251° / 34°0Clear
51 °Clear

Roy Summit, Thursday, 22 October

Clear. High 51°, low 34°.

Pressure30.36 inHg
Wind10.4 mph S
Humidity42%
Visibility—
Dew point24°
Fri, 2357° / 40°0Clear
57 °Clear

Roy Summit, Friday, 23 October

Clear. High 57°, low 40°.

Pressure30.00 inHg
Wind14.7 mph S
Humidity35%
Visibility—
Dew point24°
Sat, 2456° / 41°0Overcast
56 °Overcast

Roy Summit, Saturday, 24 October

Overcast. High 56°, low 41°.

Pressure29.77 inHg
Wind17.3 mph NW
Humidity30%
Visibility—
Dew point23°
Sun, 2550° / 33°0Clear
50 °Clear

Roy Summit, Sunday, 25 October

Clear. High 50°, low 33°.

Pressure30.00 inHg
Wind7.4 mph N
Humidity26%
Visibility—
Dew point11°
Mon, 2655° / 36°0Partly cloudy
55 °Partly cloudy

Roy Summit, Monday, 26 October

Partly cloudy. High 55°, low 36°.

Pressure30.06 inHg
Wind4.1 mph N
Humidity22%
Visibility—
Dew point11°

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.