As of 03:12 MDT

Weather in Diamond City, MT

62°Current weather

Diamond City, Sunday, 9 August, 03:12

Mostly clear. Feels like 59°. High 78°, low 51°.

Pressure30.00 inHg
Wind2.4 mph NW
Humidity41%
Visibility6.2 mi
Dew point35°
Mon, 1080° / 45°0Clear
80 °Clear

Diamond City, Monday, 10 August

Clear. High 80°, low 45°.

Pressure29.83 inHg
Wind6 mph SW
Humidity18%
Visibility6.2 mi
Dew point31°
Tue, 1182° / 52°0Clear
82 °Clear

Diamond City, Tuesday, 11 August

Clear. High 82°, low 52°.

Pressure29.91 inHg
Wind7.8 mph W
Humidity15%
Visibility6.2 mi
Dew point26°
Wed, 1278° / 52°0Overcast
78 °Overcast

Diamond City, Wednesday, 12 August

Overcast. High 78°, low 52°.

Pressure29.85 inHg
Wind1.3 mph NW
Humidity22%
Visibility6.2 mi
Dew point35°
Thu, 1381° / 52°0Overcast
81 °Overcast

Diamond City, Thursday, 13 August

Overcast. High 81°, low 52°.

Pressure29.77 inHg
Wind9.4 mph N
Humidity27%
Visibility
Dew point35°
Fri, 1463° / 49°0.04Light rain
63 °Light rain

Diamond City, Friday, 14 August

Light rain. High 63°, low 49°.

Pressure30.03 inHg
Wind6.2 mph NE
Humidity79%
Visibility
Dew point47°
Sat, 1577° / 45°0.02Light rain
77 °Light rain

Diamond City, Saturday, 15 August

Light rain. High 77°, low 45°.

Pressure30.06 inHg
Wind9.1 mph S
Humidity38%
Visibility
Dew point39°
Sun, 1664° / 52°0.02Light rain
64 °Light rain

Diamond City, Sunday, 16 August

Light rain. High 64°, low 52°.

Pressure30.06 inHg
Wind13.4 mph SW
Humidity53%
Visibility
Dew point43°
Mon, 1779° / 49°0.01Light rain
79 °Light rain

Diamond City, Monday, 17 August

Light rain. High 79°, low 49°.

Pressure29.91 inHg
Wind7.8 mph S
Humidity39%
Visibility
Dew point42°
Tue, 1873° / 48°0.02Light rain
73 °Light rain

Diamond City, Tuesday, 18 August

Light rain. High 73°, low 48°.

Pressure29.85 inHg
Wind17.7 mph W
Humidity38%
Visibility
Dew point39°
Wed, 1973° / 50°0Overcast
73 °Overcast

Diamond City, Wednesday, 19 August

Overcast. High 73°, low 50°.

Pressure29.94 inHg
Wind8.1 mph NW
Humidity31%
Visibility
Dew point35°
Thu, 2078° / 47°0Clear
78 °Clear

Diamond City, Thursday, 20 August

Clear. High 78°, low 47°.

Pressure29.91 inHg
Wind7.4 mph N
Humidity32%
Visibility
Dew point36°
Fri, 2175° / 52°0.05Light rain
75 °Light rain

Diamond City, Friday, 21 August

Light rain. High 75°, low 52°.

Pressure29.80 inHg
Wind19.6 mph W
Humidity34%
Visibility
Dew point40°
Sat, 2265° / 47°0.55Rain
65 °Rain

Diamond City, Saturday, 22 August

Rain. High 65°, low 47°.

Pressure29.88 inHg
Wind11.1 mph SW
Humidity74%
Visibility
Dew point47°
Sun, 2365° / 42°0Clear
65 °Clear

Diamond City, Sunday, 23 August

Clear. High 65°, low 42°.

Pressure29.97 inHg
Wind9.1 mph NW
Humidity45%
Visibility
Dew point35°
Mon, 2472° / 41°0Overcast
72 °Overcast

Diamond City, Monday, 24 August

Overcast. High 72°, low 41°.

Pressure29.94 inHg
Wind7.4 mph S
Humidity42%
Visibility
Dew point35°

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 Diamond City, 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 Diamond City, 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.