10-day forecast for Grantsdale, MT: 54° to 94°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
93°
Best day: Tuesday, August 11
92° · 0.08 in
Worst day: Saturday, August 15
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1090° / 54°0
Morning56°feels 53°
Afternoon88°feels 84°
Evening81°feels 80°
Overnight61°feels 59°
90 °
Grantsdale, Monday, 10 August
Clear. High 90°, low 54°.
Pressure29.85 inHg
Wind1.6 mph NE
Humidity16%
Visibility6.2 mi
Dew point34°
Tue, 1193° / 59°0
Morning66°feels 64°
Afternoon92°feels 88°
Evening81°feels 79°
Overnight63°feels 60°
93 °
Grantsdale, Tuesday, 11 August
Clear. High 93°, low 59°.
Pressure29.91 inHg
Wind2.6 mph NE
Humidity16%
Visibility6.2 mi
Dew point33°
Wed, 1293° / 60°0.01
Morning67°feels 65°
Afternoon92°feels 88°
Evening77°feels 76°
Overnight64°feels 62°
93 °
Grantsdale, Wednesday, 12 August
Light rain. High 93°, low 60°.
Pressure29.80 inHg
Wind4.4 mph NE
Humidity17%
Visibility6.2 mi
Dew point32°
Thu, 1388° / 56°0
Morning61°feels 60°
Afternoon79°feels 78°
Evening81°feels 79°
Overnight61°feels 59°
88 °
Grantsdale, Thursday, 13 August
Overcast. High 88°, low 56°.
Pressure29.83 inHg
Wind8.4 mph S
Humidity36%
Visibility—
Dew point46°
Fri, 1483° / 54°0
Morning61°feels 60°
Afternoon79°feels 78°
Evening81°feels 79°
Overnight67°feels 65°
83 °
Grantsdale, Friday, 14 August
Overcast. High 83°, low 54°.
Pressure29.91 inHg
Wind6 mph SE
Humidity40%
Visibility—
Dew point49°
Sat, 1592° / 58°0.08
Morning66°feels 64°
Afternoon85°feels 83°
Evening71°feels 71°
Overnight61°feels 60°
92 °
Grantsdale, Saturday, 15 August
Light rain. High 92°, low 58°.
Pressure29.97 inHg
Wind15.2 mph SW
Humidity23%
Visibility—
Dew point42°
Sun, 1694° / 59°0.01
Morning68°feels 66°
Afternoon88°feels 85°
Evening75°feels 75°
Overnight69°feels 68°
94 °
Grantsdale, Sunday, 16 August
Light rain. High 94°, low 59°.
Pressure29.97 inHg
Wind7.6 mph S
Humidity23%
Visibility—
Dew point44°
Mon, 1787° / 71°0
Morning75°feels 73°
Afternoon85°feels 83°
Evening83°feels 81°
Overnight71°feels 70°
87 °
Grantsdale, Monday, 17 August
Overcast. High 87°, low 71°.
Pressure29.97 inHg
Wind10.2 mph W
Humidity28%
Visibility—
Dew point47°
Tue, 1890° / 62°0
Morning69°feels 66°
Afternoon86°feels 83°
Evening85°feels 81°
Overnight69°feels 67°
90 °
Grantsdale, Tuesday, 18 August
Clear. High 90°, low 62°.
Pressure30.03 inHg
Wind10.6 mph W
Humidity22%
Visibility—
Dew point40°
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 Grantsdale, 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.