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As of 17:32 MDT

Weather in Chestnut, MT

73°Current weather

Chestnut, Thursday, 8 October, 17:32

Overcast. Feels like 71°. High 73°, low 35°.

Pressure29.97 inHg
Wind1.7 mph W
Humidity15%
Visibility6.2 mi
Dew point24°
Fri, 0976° / 35°0Mostly clear
76 °Mostly clear

Chestnut, Friday, 9 October

Mostly clear. High 76°, low 35°.

Pressure29.65 inHg
Wind13.8 mph W
Humidity23%
Visibility6.2 mi
Dew point26°
Sat, 1057° / 32°0.65Rain
57 °Rain

Chestnut, Saturday, 10 October

Rain. High 57°, low 32°.

Pressure29.56 inHg
Wind0.6 mph W
Humidity43%
Visibility6.2 mi
Dew point34°
Sun, 1133° / 26°0.71Snow
33 °Snow

Chestnut, Sunday, 11 October

Snow. High 33°, low 26°.

Pressure30.03 inHg
Wind14.5 mph E
Humidity97%
Visibility2.0 mi
Dew point27°
Mon, 1233° / 25°0.13Snow
33 °Snow

Chestnut, Monday, 12 October

Snow. High 33°, low 25°.

Pressure30.09 inHg
Wind7.3 mph E
Humidity96%
Visibility2.7 mi
Dew point25°
Tue, 1345° / 26°0Overcast
45 °Overcast

Chestnut, Tuesday, 13 October

Overcast. High 45°, low 26°.

Pressure29.94 inHg
Wind4.3 mph E
Humidity67%
Visibility—
Dew point31°
Wed, 1437° / 31°0.73Snow
37 °Snow

Chestnut, Wednesday, 14 October

Snow. High 37°, low 31°.

Pressure29.77 inHg
Wind3.6 mph W
Humidity99%
Visibility—
Dew point36°
Thu, 1529° / 13°0.38Snow
29 °Snow

Chestnut, Thursday, 15 October

Snow. High 29°, low 13°.

Pressure30.50 inHg
Wind6.3 mph W
Humidity93%
Visibility—
Dew point26°
Fri, 1631° / 9°0Clear
31 °Clear

Chestnut, Friday, 16 October

Clear. High 31°, low 9°.

Pressure30.68 inHg
Wind4.5 mph E
Humidity89%
Visibility—
Dew point23°
Sat, 1737° / 19°0Mostly clear
37 °Mostly clear

Chestnut, Saturday, 17 October

Mostly clear. High 37°, low 19°.

Pressure30.36 inHg
Wind4.6 mph SE
Humidity101%
Visibility—
Dew point34°
Sun, 1840° / 32°0Partly cloudy
40 °Partly cloudy

Chestnut, Sunday, 18 October

Partly cloudy. High 40°, low 32°.

Pressure30.06 inHg
Wind6.4 mph S
Humidity96%
Visibility—
Dew point38°
Mon, 1939° / 33°0.23Snow
39 °Snow

Chestnut, Monday, 19 October

Snow. High 39°, low 33°.

Pressure30.18 inHg
Wind5 mph S
Humidity100%
Visibility—
Dew point36°
Tue, 2045° / 31°0Clear
45 °Clear

Chestnut, Tuesday, 20 October

Clear. High 45°, low 31°.

Pressure30.18 inHg
Wind5.6 mph S
Humidity82%
Visibility—
Dew point36°
Wed, 2151° / 32°0Partly cloudy
51 °Partly cloudy

Chestnut, Wednesday, 21 October

Partly cloudy. High 51°, low 32°.

Pressure30.15 inHg
Wind5.6 mph S
Humidity66%
Visibility—
Dew point35°
Thu, 2255° / 34°0Clear
55 °Clear

Chestnut, Thursday, 22 October

Clear. High 55°, low 34°.

Pressure30.12 inHg
Wind5.3 mph S
Humidity51%
Visibility—
Dew point32°
Fri, 2355° / 36°0Partly cloudy
55 °Partly cloudy

Chestnut, Friday, 23 October

Partly cloudy. High 55°, low 36°.

Pressure29.97 inHg
Wind5.4 mph S
Humidity45%
Visibility—
Dew point30°

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 Chestnut, MT 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 Chestnut, MT 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.