10-day forecast for Keystone, IA: 35° to 73°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Wednesday, October 28
58° · 1.24 in
Worst day: Wednesday, November 4
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 2964° / 47°0.03
Morning54°feels 53°
Afternoon64°feels 62°
Evening51°feels 49°
Overnight60°feels 60°
64 °
Keystone, Thursday, 29 October
Light rain. High 64°, low 47°.
Pressure30.18 inHg
Wind9 mph N
Humidity50%
Visibility6.2 mi
Dew point42°
Fri, 3054° / 46°0.65
Morning48°feels 44°
Afternoon53°feels 52°
Evening51°feels 50°
Overnight47°feels 44°
54 °
Keystone, Friday, 30 October
Heavy rain. High 54°, low 46°.
Pressure30.27 inHg
Wind9.8 mph E
Humidity72%
Visibility6.2 mi
Dew point45°
Sat, 3161° / 53°0.27
Morning53°feels 53°
Afternoon60°feels 60°
Evening59°feels 59°
Overnight53°feels 52°
61 °
Keystone, Saturday, 31 October
Heavy rain. High 61°, low 53°.
Pressure30.27 inHg
Wind6.1 mph SE
Humidity83%
Visibility6.2 mi
Dew point54°
Sun, 0167° / 55°0
Morning56°feels 55°
Afternoon65°feels 65°
Evening60°feels 60°
Overnight55°feels 55°
67 °
Keystone, Sunday, 1 November
Overcast. High 67°, low 55°.
Pressure30.30 inHg
Wind7.5 mph SE
Humidity88%
Visibility3.1 mi
Dew point58°
Mon, 0261° / 57°0.42
Morning58°feels 58°
Afternoon61°feels 61°
Evening61°feels 61°
Overnight60°feels 60°
61 °
Keystone, Monday, 2 November
Rain. High 61°, low 57°.
Pressure29.91 inHg
Wind18.8 mph S
Humidity88%
Visibility—
Dew point57°
Tue, 0363° / 59°0.83
Morning62°feels 62°
Afternoon62°feels 62°
Evening60°feels 60°
Overnight60°feels 60°
63 °
Keystone, Tuesday, 3 November
Rain. High 63°, low 59°.
Pressure29.80 inHg
Wind15.7 mph E
Humidity96%
Visibility—
Dew point61°
Wed, 0458° / 55°1.24
Morning57°feels 57°
Afternoon56°feels 56°
Evening55°feels 55°
Overnight56°feels 56°
58 °
Keystone, Wednesday, 4 November
Rain. High 58°, low 55°.
Pressure29.74 inHg
Wind15.9 mph E
Humidity97%
Visibility—
Dew point56°
Thu, 0556° / 42°0.15
Morning55°feels 54°
Afternoon54°feels 52°
Evening44°feels 37°
Overnight45°feels 38°
56 °
Keystone, Thursday, 5 November
Light rain. High 56°, low 42°.
Pressure29.59 inHg
Wind20.3 mph NW
Humidity79%
Visibility—
Dew point49°
Fri, 0645° / 35°0
Morning37°feels 30°
Afternoon43°feels 36°
Evening38°feels 33°
Overnight36°feels 30°
45 °
Keystone, Friday, 6 November
Mostly clear. High 45°, low 35°.
Pressure29.88 inHg
Wind14.3 mph NW
Humidity57%
Visibility—
Dew point28°
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 Keystone, IA 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.