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As of 12:33 MDT

Weather in Grannis, MT

60°Current weather

Grannis, Tuesday, 20 October, 12:33

Overcast. Feels like 57°. High 64°, low 37°.

Pressure30.09 inHg
Wind6.9 mph N
Humidity38%
Visibility6.2 mi
Dew point34°

10-day forecast for Grannis, MT: 22° to 71°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.

71°
Best day: Wednesday, October 21
51° · 0.6 in
Worst day: Friday, October 23

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

Wed, 2171° / 37°0Clear
MorningClear39°feels 39°
AfternoonClear66°feels 65°
EveningClear54°feels 52°
OvernightClear41°feels 39°
71 °Clear

Grannis, Wednesday, 21 October

Clear. High 71°, low 37°.

Pressure30.06 inHg
Wind2.7 mph SE
Humidity47%
Visibility6.2 mi
Dew point38°
Thu, 2270° / 45°0Overcast
MorningClear45°feels 45°
AfternoonOvercast69°feels 68°
EveningClear55°feels 53°
OvernightClear48°feels 48°
70 °Overcast

Grannis, Thursday, 22 October

Overcast. High 70°, low 45°.

Pressure29.91 inHg
Wind3.5 mph S
Humidity42%
Visibility6.2 mi
Dew point40°
Fri, 2351° / 35°0.6Rain
MorningLight rain47°feels 45°
AfternoonLight rain40°feels 30°
EveningLight rain36°feels 27°
OvernightOvercast46°feels 46°
51 °Rain

Grannis, Friday, 23 October

Rain. High 51°, low 35°.

Pressure29.91 inHg
Wind15.9 mph NW
Humidity91%
Visibility1.2 mi
Dew point42°
Sat, 2447° / 32°0.01Light rain
MorningPartly cloudy33°feels 33°
AfternoonLight rain42°feels 38°
EveningLight rain42°feels 41°
OvernightOvercast35°feels 29°
47 °Light rain

Grannis, Saturday, 24 October

Light rain. High 47°, low 32°.

Pressure30.39 inHg
Wind5.7 mph SE
Humidity68%
Visibility6.2 mi
Dew point30°
Sun, 2554° / 34°0Clear
MorningClear38°feels 38°
AfternoonClear48°feels 47°
EveningClear45°feels 43°
OvernightClear35°feels 35°
54 °Clear

Grannis, Sunday, 25 October

Clear. High 54°, low 34°.

Pressure30.24 inHg
Wind6.2 mph SE
Humidity57%
Visibility—
Dew point31°
Mon, 2644° / 26°0Clear
MorningClear31°feels 26°
AfternoonClear39°feels 36°
EveningClear35°feels 31°
OvernightClear26°feels 21°
44 °Clear

Grannis, Monday, 26 October

Clear. High 44°, low 26°.

Pressure30.50 inHg
Wind8 mph N
Humidity44%
Visibility—
Dew point18°
Tue, 2757° / 22°0Clear
MorningClear30°feels 26°
AfternoonClear47°feels 44°
EveningClear43°feels 39°
OvernightClear35°feels 30°
57 °Clear

Grannis, Tuesday, 27 October

Clear. High 57°, low 22°.

Pressure30.30 inHg
Wind6.4 mph NW
Humidity16%
Visibility—
Dew point0°
Wed, 2850° / 33°0Mostly clear
MorningMostly clear36°feels 33°
AfternoonMostly clear45°feels 43°
EveningMostly clear41°feels 37°
OvernightMostly clear34°feels 31°
50 °Mostly clear

Grannis, Wednesday, 28 October

Mostly clear. High 50°, low 33°.

Pressure30.30 inHg
Wind7.4 mph E
Humidity30%
Visibility—
Dew point14°
Thu, 2947° / 27°0Clear
MorningClear31°feels 30°
AfternoonClear41°feels 38°
EveningClear39°feels 35°
OvernightClear32°feels 30°
47 °Clear

Grannis, Thursday, 29 October

Clear. High 47°, low 27°.

Pressure30.24 inHg
Wind9.9 mph E
Humidity38%
Visibility—
Dew point16°

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.