As of 08:32 MDT

Weather in Roy Summit, ID

51°

Roy Summit, Sunday, 11 October, 08:32

Rain. Feels like 50°. High 58°, low 48°.

Pressure29.56 inHg

Wind4.4 mph SE

Humidity87%

Visibility1.2 mi

Dew point47°

See detailed hourly forecast

Mon, 1252° / 44°

0.11

52 °

Roy Summit, Monday, 12 October

Light rain. High 52°, low 44°.

Pressure29.91 inHg

Wind5.8 mph N

Humidity90%

Visibility6.2 mi

Dew point35°

Tue, 1343° / 37°

0.2

43 °

Roy Summit, Tuesday, 13 October

Rain. High 43°, low 37°.

Pressure30.03 inHg

Wind7.3 mph NW

Humidity88%

Visibility1.9 mi

Dew point37°

Wed, 1452° / 39°

0.01

52 °

Roy Summit, Wednesday, 14 October

Light rain. High 52°, low 39°.

Pressure30.15 inHg

Wind8 mph NW

Humidity59%

Visibility6.2 mi

Dew point31°

Thu, 1560° / 38°

60 °

Roy Summit, Thursday, 15 October

Clear. High 60°, low 38°.

Pressure30.42 inHg

Wind6.2 mph N

Humidity47%

Visibility—

Dew point33°

Fri, 1662° / 37°

62 °

Roy Summit, Friday, 16 October

Clear. High 62°, low 37°.

Pressure30.45 inHg

Wind7.3 mph SE

Humidity40%

Visibility—

Dew point31°

Sat, 1762° / 44°

62 °

Roy Summit, Saturday, 17 October

Clear. High 62°, low 44°.

Pressure30.24 inHg

Wind12.5 mph S

Humidity48%

Visibility—

Dew point37°

Sun, 1864° / 47°

64 °

Roy Summit, Sunday, 18 October

Overcast. High 64°, low 47°.

Pressure30.09 inHg

Wind11.5 mph S

Humidity40%

Visibility—

Dew point35°

Mon, 1964° / 49°

64 °

Roy Summit, Monday, 19 October

Clear. High 64°, low 49°.

Pressure30.00 inHg

Wind14 mph S

Humidity40%

Visibility—

Dew point35°

Tue, 2053° / 40°

53 °

Roy Summit, Tuesday, 20 October

Light rain. High 53°, low 40°.

Pressure30.12 inHg

Wind14.7 mph NW

Humidity50%

Visibility—

Dew point28°

Wed, 2157° / 39°

57 °

Roy Summit, Wednesday, 21 October

Clear. High 57°, low 39°.

Pressure30.06 inHg

Wind4.3 mph NE

Humidity30%

Visibility—

Dew point21°

Thu, 2259° / 42°

59 °

Roy Summit, Thursday, 22 October

Clear. High 59°, low 42°.

Pressure30.12 inHg

Wind6 mph N

Humidity28%

Visibility—

Dew point21°

Fri, 2361° / 44°

61 °

Roy Summit, Friday, 23 October

Clear. High 61°, low 44°.

Pressure30.09 inHg

Wind13.6 mph S

Humidity38%

Visibility—

Dew point31°

Sat, 2464° / 47°

64 °

Roy Summit, Saturday, 24 October

Clear. High 64°, low 47°.

Pressure30.06 inHg

Wind11 mph S

Humidity35%

Visibility—

Dew point31°

Sun, 2562° / 44°

62 °

Roy Summit, Sunday, 25 October

Partly cloudy. High 62°, low 44°.

Pressure30.30 inHg

Wind8.2 mph N

Humidity21%

Visibility—

Dew point16°

Mon, 2661° / 42°

61 °

Roy Summit, Monday, 26 October

Clear. High 61°, low 42°.

Pressure30.15 inHg

Wind7.1 mph N

Humidity18%

Visibility—

Dew point12°

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.