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Keystone, IA Weather Forecast

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Keystone, IA Weather Forecast

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Keystone IA weather - Clear - 70°F
Clear
70°F
Updated 10:18 am
Feels Like 67°F
Humidity 70%
Wind SSE 13 mph
Barometer  30.14 in
Dew Point 60°F
Keystone IA weather - Clear - 21°C
Clear
21°C
Updated 10:18 am
Feels Like 19°C
Humidity 70%
Wind SSE 21 km/h
Barometer  102.1 kPa
Dew Point 16°C
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Keystone Weather Forecast

TODAY TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT
Keystone, IA Weather - Today Partly Sunny Keystone, IA Weather - Tonight Partly Cloudy Keystone, IA Weather - Tuesday Chance Of Showers Keystone, IA Weather - Tuesday Night Chance Of T-Storm Keystone, IA Weather - Wednesday Mostly Cloudy Keystone, IA Weather - Wednesday Night Mostly Clear Keystone, IA Weather - Thursday Mostly Clear Keystone, IA Weather - Thursday Night Clear Keystone, IA Weather - Friday Mostly Sunny Keystone, IA Weather - Friday Night Chance Of T-Storm Keystone, IA Weather - Saturday Mostly Sunny Keystone, IA Weather - Saturday Night Chance Of T-Storm
Partly Sunny Partly Cloudy Chance of Showers Chance of T-Storm Mostly Cloudy Mostly Clear Mostly Clear Clear Mostly Sunny Chance of T-Storm Mostly Sunny Chance of T-Storm
Hi: 81°FHi: 27°C
 Lo: 65°FLo: 18°C Hi: 89°FHi: 32°C
 Lo: 70°FLo: 21°C Hi: 81°FHi: 27°C
 Hi: 80°FHi: 27°C
Lo: 59°FLo: 15°C		 Hi: 80°FHi: 27°C
Lo: 59°FLo: 15°C		 Lo: 59°FLo: 15°C Hi: 85°FHi: 29°C
 Lo: 65°FLo: 18°C Hi: 81°FHi: 27°C
 Lo: 60°FLo: 16°C
POP: 50% POP: 100% POP: 50% POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 726 AM CDT Mon Sep 07 2026 Keystone, IA Weather - WeatherWorld.com

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Issued: 611 AM CDT Mon Sep 7 2026

Key Messages

  • A dry and pleasant day is in store for the Labor Day holiday. No impactful weather is expected.
  • Hot and humid conditions will return on Tuesday with near- advisory heat indices in far southeast Iowa and northeast Missouri.
  • A band of showers and storms is expected Tuesday afternoon through Wednesday. Isolated severe storms will be possible with this activity Tuesday evening through Wednesday morning. Heavy rainfall may lead to flooding issues over northeast Iowa Tuesday night.

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