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As of 15:35 MDT

Weather in Rainbow, MT

85°Current weather

Rainbow, Saturday, 8 August, 15:35

Clear. Feels like 82°. High 85°, low 52°.

Pressure29.80 inHg
Wind9.6 mph NE
Humidity21%
Visibility6.2 mi
Dew point40°
Sun, 0981° / 51°0Clear
81 °Clear

Rainbow, Sunday, 9 August

Clear. High 81°, low 51°.

Pressure29.94 inHg
Wind10.1 mph NW
Humidity36%
Visibility6.2 mi
Dew point47°
Mon, 1087° / 46°0Clear
87 °Clear

Rainbow, Monday, 10 August

Clear. High 87°, low 46°.

Pressure29.83 inHg
Wind6.6 mph NW
Humidity26%
Visibility6.2 mi
Dew point43°
Tue, 1185° / 57°0Clear
85 °Clear

Rainbow, Tuesday, 11 August

Clear. High 85°, low 57°.

Pressure30.00 inHg
Wind7.8 mph NW
Humidity36%
Visibility6.2 mi
Dew point46°
Wed, 1287° / 59°0Overcast
87 °Overcast

Rainbow, Wednesday, 12 August

Overcast. High 87°, low 59°.

Pressure29.85 inHg
Wind8 mph NW
Humidity28%
Visibility6.2 mi
Dew point43°
Thu, 1386° / 58°0.04Light rain
86 °Light rain

Rainbow, Thursday, 13 August

Light rain. High 86°, low 58°.

Pressure29.85 inHg
Wind18.4 mph E
Humidity38%
Visibility—
Dew point45°
Fri, 1482° / 64°0Partly cloudy
82 °Partly cloudy

Rainbow, Friday, 14 August

Partly cloudy. High 82°, low 64°.

Pressure29.91 inHg
Wind14.5 mph NE
Humidity38%
Visibility—
Dew point47°
Sat, 1579° / 60°0Light rain
79 °Light rain

Rainbow, Saturday, 15 August

Light rain. High 79°, low 60°.

Pressure30.03 inHg
Wind12.3 mph NE
Humidity43%
Visibility—
Dew point46°
Sun, 1692° / 60°0.01Light rain
92 °Light rain

Rainbow, Sunday, 16 August

Light rain. High 92°, low 60°.

Pressure29.94 inHg
Wind31.3 mph S
Humidity20%
Visibility—
Dew point37°
Mon, 1792° / 62°0Clear
92 °Clear

Rainbow, Monday, 17 August

Clear. High 92°, low 62°.

Pressure30.00 inHg
Wind13.8 mph NE
Humidity22%
Visibility—
Dew point38°
Tue, 1886° / 64°0.04Light rain
86 °Light rain

Rainbow, Tuesday, 18 August

Light rain. High 86°, low 64°.

Pressure29.91 inHg
Wind20.3 mph W
Humidity22%
Visibility—
Dew point37°
Wed, 1986° / 57°0.01Light rain
86 °Light rain

Rainbow, Wednesday, 19 August

Light rain. High 86°, low 57°.

Pressure30.00 inHg
Wind10.3 mph E
Humidity32%
Visibility—
Dew point43°
Thu, 2093° / 63°0Overcast
93 °Overcast

Rainbow, Thursday, 20 August

Overcast. High 93°, low 63°.

Pressure29.85 inHg
Wind8.7 mph SE
Humidity21%
Visibility—
Dew point39°
Fri, 2189° / 68°0Clear
89 °Clear

Rainbow, Friday, 21 August

Clear. High 89°, low 68°.

Pressure29.91 inHg
Wind11.7 mph E
Humidity31%
Visibility—
Dew point47°
Sat, 2292° / 65°0Overcast
92 °Overcast

Rainbow, Saturday, 22 August

Overcast. High 92°, low 65°.

Pressure29.91 inHg
Wind12.3 mph NE
Humidity25%
Visibility—
Dew point44°
Sun, 2391° / 65°0Mostly clear
91 °Mostly clear

Rainbow, Sunday, 23 August

Mostly clear. High 91°, low 65°.

Pressure30.03 inHg
Wind17.8 mph NE
Humidity30%
Visibility—
Dew point46°

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 Rainbow, 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 Rainbow, 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.