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As of 08:44 MDT

Weather in Grannis, MT

56°Current weather

Grannis, Saturday, 17 October, 08:44

Overcast. Feels like 53°. High 65°, low 39°.

Pressure30.12 inHg
Wind28.8 mph SW
Humidity26%
Visibility6.2 mi
Dew point23°

10-day forecast for Grannis, MT: 36° to 69°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.

69°
Best day: Thursday, October 22
51° · 1.46 in
Worst day: Friday, October 23

Tap any day below to see morning, afternoon, evening and overnight.

Sun, 1860° / 37°0Mostly clear
MorningOvercast37°feels 33°
AfternoonOvercast58°feels 55°
EveningClear44°feels 39°
OvernightOvercast45°feels 45°
60 °Mostly clear

Grannis, Sunday, 18 October

Mostly clear. High 60°, low 37°.

Pressure30.12 inHg
Wind8.2 mph SE
Humidity42%
Visibility6.2 mi
Dew point31°
Mon, 1967° / 38°0Overcast
MorningClear39°feels 39°
AfternoonOvercast66°feels 64°
EveningClear52°feels 49°
OvernightClear38°feels 38°
67 °Overcast

Grannis, Monday, 19 October

Overcast. High 67°, low 38°.

Pressure29.94 inHg
Wind1.7 mph S
Humidity37%
Visibility6.2 mi
Dew point33°
Tue, 2064° / 42°0Overcast
MorningOvercast42°feels 42°
AfternoonOvercast63°feels 61°
EveningPartly cloudy51°feels 48°
OvernightOvercast45°feels 45°
64 °Overcast

Grannis, Tuesday, 20 October

Overcast. High 64°, low 42°.

Pressure30.03 inHg
Wind1.6 mph NW
Humidity43%
Visibility6.2 mi
Dew point37°
Wed, 2164° / 39°0Light rain
MorningClear42°feels 42°
AfternoonLight rain56°feels 54°
EveningLight rain55°feels 53°
OvernightPartly cloudy42°feels 42°
64 °Light rain

Grannis, Wednesday, 21 October

Light rain. High 64°, low 39°.

Pressure30.09 inHg
Wind5.8 mph E
Humidity50%
Visibility—
Dew point36°
Thu, 2269° / 44°0Clear
MorningClear49°feels 49°
AfternoonClear62°feels 60°
EveningClear60°feels 58°
OvernightClear51°feels 49°
69 °Clear

Grannis, Thursday, 22 October

Clear. High 69°, low 44°.

Pressure29.88 inHg
Wind9.2 mph S
Humidity43%
Visibility—
Dew point37°
Fri, 2351° / 38°1.46Snow
MorningSnow49°feels 49°
AfternoonSnow47°feels 46°
EveningSnow43°feels 38°
OvernightSnow40°feels 38°
51 °Snow

Grannis, Friday, 23 October

Snow. High 51°, low 38°.

Pressure29.71 inHg
Wind10.3 mph NW
Humidity86%
Visibility—
Dew point44°
Sat, 2450° / 37°0.3Snow
MorningSnow39°feels 35°
AfternoonSnow44°feels 43°
EveningSnow45°feels 43°
OvernightSnow40°feels 39°
50 °Snow

Grannis, Saturday, 24 October

Snow. High 50°, low 37°.

Pressure30.09 inHg
Wind5.9 mph W
Humidity68%
Visibility—
Dew point33°
Sun, 2550° / 38°0Overcast
MorningOvercast40°feels 39°
AfternoonOvercast46°feels 43°
EveningOvercast46°feels 43°
OvernightOvercast43°feels 42°
50 °Overcast

Grannis, Sunday, 25 October

Overcast. High 50°, low 38°.

Pressure29.80 inHg
Wind7.6 mph NE
Humidity60%
Visibility—
Dew point32°
Mon, 2649° / 36°0.02Light rain
MorningLight rain38°feels 31°
AfternoonLight rain43°feels 34°
EveningLight rain44°feels 37°
OvernightLight rain39°feels 32°
49 °Light rain

Grannis, Monday, 26 October

Light rain. High 49°, low 36°.

Pressure29.74 inHg
Wind22.3 mph W
Humidity55%
Visibility—
Dew point26°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Grannis, MT around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.