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As of 19:21 MDT

Weather in Simms, MT

82°Current weather

Simms, Saturday, 8 August, 19:21

Overcast. Feels like 80°. High 83°, low 51°.

Pressure29.80 inHg
Wind13.5 mph NE
Humidity28%
Visibility6.2 mi
Dew point44°
Sun, 0980° / 52°0Clear
80 °Clear

Simms, Sunday, 9 August

Clear. High 80°, low 52°.

Pressure29.94 inHg
Wind8.2 mph N
Humidity33%
Visibility6.2 mi
Dew point44°
Mon, 1087° / 48°0Clear
87 °Clear

Simms, Monday, 10 August

Clear. High 87°, low 48°.

Pressure29.85 inHg
Wind9.2 mph N
Humidity27%
Visibility6.2 mi
Dew point43°
Tue, 1188° / 56°0Clear
88 °Clear

Simms, Tuesday, 11 August

Clear. High 88°, low 56°.

Pressure29.94 inHg
Wind5.8 mph E
Humidity26%
Visibility6.2 mi
Dew point39°
Wed, 1284° / 59°0Mostly clear
84 °Mostly clear

Simms, Wednesday, 12 August

Mostly clear. High 84°, low 59°.

Pressure29.85 inHg
Wind8.7 mph N
Humidity31%
Visibility6.2 mi
Dew point44°
Thu, 1378° / 52°0Mostly clear
78 °Mostly clear

Simms, Thursday, 13 August

Mostly clear. High 78°, low 52°.

Pressure29.85 inHg
Wind13.5 mph N
Humidity45%
Visibility—
Dew point47°
Fri, 1471° / 55°0Light rain
71 °Light rain

Simms, Friday, 14 August

Light rain. High 71°, low 55°.

Pressure30.12 inHg
Wind14.1 mph NE
Humidity59%
Visibility—
Dew point47°
Sat, 1582° / 50°0Clear
82 °Clear

Simms, Saturday, 15 August

Clear. High 82°, low 50°.

Pressure30.12 inHg
Wind10.9 mph E
Humidity47%
Visibility—
Dew point46°
Sun, 1694° / 57°0Mostly clear
94 °Mostly clear

Simms, Sunday, 16 August

Mostly clear. High 94°, low 57°.

Pressure29.91 inHg
Wind18 mph NW
Humidity14%
Visibility—
Dew point30°
Mon, 1796° / 61°0Partly cloudy
96 °Partly cloudy

Simms, Monday, 17 August

Partly cloudy. High 96°, low 61°.

Pressure29.88 inHg
Wind15.4 mph NW
Humidity12%
Visibility—
Dew point28°
Tue, 1881° / 60°0.18Rain
81 °Rain

Simms, Tuesday, 18 August

Rain. High 81°, low 60°.

Pressure30.12 inHg
Wind12.2 mph SE
Humidity75%
Visibility—
Dew point54°
Wed, 1985° / 63°0.02Light rain
85 °Light rain

Simms, Wednesday, 19 August

Light rain. High 85°, low 63°.

Pressure29.88 inHg
Wind26.4 mph W
Humidity26%
Visibility—
Dew point40°
Thu, 2088° / 62°0.01Light rain
88 °Light rain

Simms, Thursday, 20 August

Light rain. High 88°, low 62°.

Pressure29.83 inHg
Wind19 mph NW
Humidity26%
Visibility—
Dew point40°
Fri, 2186° / 59°0Light rain
86 °Light rain

Simms, Friday, 21 August

Light rain. High 86°, low 59°.

Pressure29.80 inHg
Wind16.5 mph NW
Humidity18%
Visibility—
Dew point31°
Sat, 2287° / 53°0Clear
87 °Clear

Simms, Saturday, 22 August

Clear. High 87°, low 53°.

Pressure29.88 inHg
Wind9.3 mph E
Humidity34%
Visibility—
Dew point41°
Sun, 2391° / 60°0Overcast
91 °Overcast

Simms, Sunday, 23 August

Overcast. High 91°, low 60°.

Pressure29.71 inHg
Wind19.7 mph W
Humidity11%
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 Simms, 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 Simms, 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.