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As of 04:12 MDT

Weather in Irwin, ID

35°Current weather

Irwin, Saturday, 17 October, 04:12

Clear. Feels like 33°. High 69°, low 34°.

Pressure30.45 inHg
Wind3.2 mph SE
Humidity83%
Visibility6.2 mi
Dew point31°
Sun, 1868° / 35°0Partly cloudy
68 °Partly cloudy

Irwin, Sunday, 18 October

Partly cloudy. High 68°, low 35°.

Pressure30.06 inHg
Wind4.6 mph S
Humidity34%
Visibility6.2 mi
Dew point26°
Mon, 1965° / 36°0Clear
65 °Clear

Irwin, Monday, 19 October

Clear. High 65°, low 36°.

Pressure29.97 inHg
Wind5.7 mph S
Humidity36%
Visibility6.2 mi
Dew point31°
Tue, 2063° / 40°0.06Light rain
63 °Light rain

Irwin, Tuesday, 20 October

Light rain. High 63°, low 40°.

Pressure30.00 inHg
Wind4.9 mph S
Humidity47%
Visibility6.2 mi
Dew point39°
Wed, 2164° / 40°0.01Light rain
64 °Light rain

Irwin, Wednesday, 21 October

Light rain. High 64°, low 40°.

Pressure30.09 inHg
Wind5.9 mph S
Humidity49%
Visibility—
Dew point40°
Thu, 2264° / 41°0.4Rain
64 °Rain

Irwin, Thursday, 22 October

Rain. High 64°, low 41°.

Pressure30.06 inHg
Wind5.1 mph SW
Humidity91%
Visibility—
Dew point49°
Fri, 2347° / 34°0.81Snow
47 °Snow

Irwin, Friday, 23 October

Snow. High 47°, low 34°.

Pressure29.77 inHg
Wind15.7 mph SW
Humidity91%
Visibility—
Dew point40°
Sat, 2443° / 32°0Light snow
43 °Light snow

Irwin, Saturday, 24 October

Light snow. High 43°, low 32°.

Pressure30.18 inHg
Wind6 mph N
Humidity59%
Visibility—
Dew point28°
Sun, 2548° / 34°0.03Snow
48 °Snow

Irwin, Sunday, 25 October

Snow. High 48°, low 34°.

Pressure30.21 inHg
Wind5.1 mph S
Humidity61%
Visibility—
Dew point30°
Mon, 2650° / 36°0Overcast
50 °Overcast

Irwin, Monday, 26 October

Overcast. High 50°, low 36°.

Pressure30.00 inHg
Wind4.9 mph SE
Humidity48%
Visibility—
Dew point27°
Tue, 2750° / 35°0.35Snow
50 °Snow

Irwin, Tuesday, 27 October

Snow. High 50°, low 35°.

Pressure29.71 inHg
Wind8.8 mph SW
Humidity43%
Visibility—
Dew point27°
Wed, 2842° / 26°0.08Light snow
42 °Light snow

Irwin, Wednesday, 28 October

Light snow. High 42°, low 26°.

Pressure30.21 inHg
Wind9.1 mph SW
Humidity66%
Visibility—
Dew point26°
Thu, 2950° / 33°0Overcast
50 °Overcast

Irwin, Thursday, 29 October

Overcast. High 50°, low 33°.

Pressure29.88 inHg
Wind8.5 mph SE
Humidity57%
Visibility—
Dew point31°
Fri, 3038° / 26°0.19Snow
38 °Snow

Irwin, Friday, 30 October

Snow. High 38°, low 26°.

Pressure29.80 inHg
Wind7.3 mph NW
Humidity92%
Visibility—
Dew point34°
Sat, 3138° / 25°0.02Light snow
38 °Light snow

Irwin, Saturday, 31 October

Light snow. High 38°, low 25°.

Pressure30.09 inHg
Wind7.9 mph N
Humidity71%
Visibility—
Dew point25°
Sun, 0144° / 27°0Mostly clear
44 °Mostly clear

Irwin, Sunday, 1 November

Mostly clear. High 44°, low 27°.

Pressure30.30 inHg
Wind4.9 mph SW
Humidity54%
Visibility—
Dew point23°

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 Irwin, 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 Irwin, 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.