10-day forecast for Simms, MT: 46° to 93°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
93°
Best day: Monday, August 17
78°
Worst day: Saturday, August 15
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0980° / 53°0
Morning56°feels 53°
Afternoon78°feels 77°
Evening73°feels 71°
Overnight57°feels 54°
80 °
Simms, Sunday, 9 August
Clear. High 80°, low 53°.
Pressure29.94 inHg
Wind8.7 mph N
Humidity34%
Visibility6.2 mi
Dew point45°
Mon, 1091° / 46°0
Morning63°feels 61°
Afternoon88°feels 84°
Evening81°feels 79°
Overnight52°feels 49°
91 °
Simms, Monday, 10 August
Clear. High 91°, low 46°.
Pressure29.83 inHg
Wind6.8 mph N
Humidity23%
Visibility6.2 mi
Dew point40°
Tue, 1185° / 53°0
Morning59°feels 57°
Afternoon83°feels 80°
Evening79°feels 79°
Overnight64°feels 61°
85 °
Simms, Tuesday, 11 August
Clear. High 85°, low 53°.
Pressure29.97 inHg
Wind5.9 mph NE
Humidity30%
Visibility6.2 mi
Dew point42°
Wed, 1284° / 58°0
Morning64°feels 62°
Afternoon79°feels 78°
Evening82°feels 80°
Overnight61°feels 59°
84 °
Simms, Wednesday, 12 August
Partly cloudy. High 84°, low 58°.
Pressure29.88 inHg
Wind10.2 mph N
Humidity29%
Visibility6.2 mi
Dew point43°
Thu, 1386° / 54°0
Morning59°feels 58°
Afternoon75°feels 73°
Evening84°feels 81°
Overnight69°feels 67°
86 °
Simms, Thursday, 13 August
Mostly clear. High 86°, low 54°.
Pressure29.85 inHg
Wind15.9 mph NW
Humidity40%
Visibility—
Dew point44°
Fri, 1484° / 61°0
Morning65°feels 64°
Afternoon77°feels 76°
Evening79°feels 78°
Overnight67°feels 66°
84 °
Simms, Friday, 14 August
Partly cloudy. High 84°, low 61°.
Pressure29.91 inHg
Wind18.3 mph NE
Humidity36%
Visibility—
Dew point45°
Sat, 1578° / 57°0
Morning61°feels 60°
Afternoon71°feels 70°
Evening76°feels 76°
Overnight69°feels 69°
78 °
Simms, Saturday, 15 August
Overcast. High 78°, low 57°.
Pressure30.03 inHg
Wind8.8 mph E
Humidity45%
Visibility—
Dew point46°
Sun, 1692° / 56°0.01
Morning65°feels 63°
Afternoon85°feels 83°
Evening77°feels 77°
Overnight67°feels 66°
92 °
Simms, Sunday, 16 August
Light rain. High 92°, low 56°.
Pressure29.91 inHg
Wind21.4 mph W
Humidity16%
Visibility—
Dew point32°
Mon, 1793° / 60°0
Morning67°feels 65°
Afternoon87°feels 84°
Evening90°feels 86°
Overnight72°feels 71°
93 °
Simms, Monday, 17 August
Overcast. High 93°, low 60°.
Pressure30.00 inHg
Wind9.1 mph NW
Humidity16%
Visibility—
Dew point31°
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 Simms, 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.