10-day forecast for Simms, MT: 21° to 64°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
64°
Best day: Sunday, October 18
34° · 0.69 in
Worst day: Sunday, October 11
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 1134° / 30°0.69
Morning31°feels 21°
Afternoon34°feels 24°
Evening31°feels 22°
Overnight32°feels 22°
34 °
Simms, Sunday, 11 October
Snow. High 34°, low 30°.
Pressure30.12 inHg
Wind13.2 mph N
Humidity99%
Visibility2.2 mi
Dew point31°
Mon, 1232° / 24°0.2
Morning30°feels 26°
Afternoon32°feels 28°
Evening25°feels 25°
Overnight30°feels 21°
32 °
Simms, Monday, 12 October
Snow. High 32°, low 24°.
Pressure30.21 inHg
Wind1.4 mph N
Humidity97%
Visibility6.2 mi
Dew point29°
Tue, 1337° / 22°0
Morning22°feels 11°
Afternoon36°feels 33°
Evening30°feels 25°
Overnight24°feels 17°
37 °
Simms, Tuesday, 13 October
Mostly clear. High 37°, low 22°.
Pressure30.12 inHg
Wind6.8 mph SW
Humidity93%
Visibility1.1 mi
Dew point29°
Wed, 1443° / 21°0
Morning24°feels 17°
Afternoon38°feels 36°
Evening39°feels 37°
Overnight23°feels 16°
43 °
Simms, Wednesday, 14 October
Clear. High 43°, low 21°.
Pressure30.18 inHg
Wind6.2 mph SW
Humidity75%
Visibility—
Dew point28°
Thu, 1551° / 29°0
Morning38°feels 33°
Afternoon46°feels 46°
Evening45°feels 44°
Overnight36°feels 32°
51 °
Simms, Thursday, 15 October
Clear. High 51°, low 29°.
Pressure30.47 inHg
Wind7.9 mph NW
Humidity66%
Visibility—
Dew point33°
Fri, 1645° / 30°0
Morning33°feels 32°
Afternoon40°feels 37°
Evening40°feels 37°
Overnight34°feels 34°
45 °
Simms, Friday, 16 October
Mostly clear. High 45°, low 30°.
Pressure30.71 inHg
Wind7 mph SE
Humidity66%
Visibility—
Dew point28°
Sat, 1758° / 35°0
Morning39°feels 33°
Afternoon51°feels 48°
Evening51°feels 49°
Overnight47°feels 43°
58 °
Simms, Saturday, 17 October
Partly cloudy. High 58°, low 35°.
Pressure30.00 inHg
Wind17.3 mph S
Humidity45%
Visibility—
Dew point28°
Sun, 1864° / 47°0
Morning51°feels 49°
Afternoon59°feels 56°
Evening56°feels 53°
Overnight51°feels 48°
64 °
Simms, Sunday, 18 October
Overcast. High 64°, low 47°.
Pressure29.91 inHg
Wind16.9 mph SW
Humidity41%
Visibility—
Dew point34°
Mon, 1958° / 45°0
Morning49°feels 45°
Afternoon54°feels 51°
Evening53°feels 51°
Overnight48°feels 47°
58 °
Simms, Monday, 19 October
Light rain. High 58°, low 45°.
Pressure29.88 inHg
Wind12.5 mph SW
Humidity50%
Visibility—
Dew point35°
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.