Weather Alert
Grinnell High School Weather Warning NWS WEATHER ALERT FOR THE GRINNELL HIGH SCHOOL, IA AREA - Issued: 809 AM CDT Mon Aug 24 2026 Grinnell High School Weather Warning

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Grinnell High School, IA Weather - Hour by Hour Forecast

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Grinnell High School, IA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Mostly Cloudy. Temperature is 70°F21°C, dew point 62°F17°C, humidity 73%. Wind direction is S at 5 mph8 km/h with visibility of 10 mi16 km. Barometric pressure is 30.1 in1019 mb.
Today - Partly sunny. Near steady temperature in the mid 70s. South winds around 5 mph... Full Forecast
Tonight - Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s. Southeast winds around 5 mph... Full Forecast

Grinnell High School Hourly Weather

24 Hour Forecast Scroll
Mon, Aug 24
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Grinnell High School, IA Hourly Weather - Cloudy - 2:00 PM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 3:00 PM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 4:00 PM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 5:00 PM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 6:00 PM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 7:00 PM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 8:00 PM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 9:00 PM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 10:00 PM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 11:00 PM Grinnell High School, IA Hourly Weather - Cloudy - 12:00 AM Grinnell High School, IA Hourly Weather - Cloudy - 1:00 AM Grinnell High School, IA Hourly Weather - Cloudy - 2:00 AM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 3:00 AM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 4:00 AM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 5:00 AM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 6:00 AM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 7:00 AM Grinnell High School, IA Hourly Weather - Mostly Cloudy - 8:00 AM Grinnell High School, IA Hourly Weather - Partly Cloudy - 9:00 AM Grinnell High School, IA Hourly Weather - Partly Cloudy - 10:00 AM Grinnell High School, IA Hourly Weather - Partly Cloudy - 11:00 AM Grinnell High School, IA Hourly Weather - Partly Cloudy - 12:00 PM Grinnell High School, IA Hourly Weather - Partly Cloudy - 1:00 PM
Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
73°F23°C 74°F23°C 75°F24°C 74°F23°C 74°F23°C 73°F23°C 71°F22°C 68°F20°C 66°F19°C 66°F19°C 65°F18°C 65°F18°C 65°F18°C 64°F18°C 64°F18°C 64°F18°C 63°F17°C 63°F17°C 66°F19°C 68°F20°C 71°F22°C 74°F23°C 76°F24°C 79°F26°C
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15% 15% 15% 15% 15% 15% 2% 2% 2% 2% 2% 2% 0% 0% 0% 0% 0% 0% 4% 4% 4% 4% 4% 4%
59°F15°C 59°F15°C 59°F15°C 59°F15°C 60°F16°C 60°F16°C 60°F16°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 58°F14°C 58°F14°C 58°F14°C 58°F14°C 58°F14°C 59°F15°C 60°F16°C 61°F16°C 61°F16°C 62°F17°C 62°F17°C
62% 60% 58% 60% 62% 64% 68% 73% 78% 78% 81% 81% 81% 81% 81% 81% 84% 84% 78% 76% 71% 64% 62% 56%
SSE SSE SSE SE SE SE SE SE SE SE SE SE SE SE SE SE SE SE SSE SSE SSE S S S
4 mph 4 mph 4 mph 4 mph 3 mph 3 mph 3 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 7 mph 7 mph 7 mph 7 mph 7 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (CDT)
Weather
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POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KGGI model statistics.

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Prob Precip % = Probability of Precipitation.

Grinnell High School 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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