Weather Alert
Alton Weather Warning NWS WEATHER ALERT FOR THE ALTON, IA AREA - Issued: 317 AM CDT Wed Oct 21 2026 Alton Weather Warning

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Alton, IA Weather - Hour by Hour Forecast

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Alton, IA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Mostly Clear. Temperature is 48°F9°C, dew point 46°F8°C, humidity 93%. Wind direction is S at 10 mph16 km/h with visibility of 10 mi16 km. Barometric pressure is 30.13 in1020 mb.
Today - Sunny. Highs in the mid 70s. South winds around 5 mph... Full Forecast
Tonight - Partly cloudy in the evening, then clearing. Lows in the upper 40s. East winds around 5 mph... Full Forecast

Alton Hourly Weather

24 Hour Forecast Scroll
Wed, Oct 21
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Alton, IA Hourly Weather - Clear - 5:00 AM Alton, IA Hourly Weather - Clear - 6:00 AM Alton, IA Hourly Weather - Clear - 7:00 AM Alton, IA Hourly Weather - Clear - 8:00 AM Alton, IA Hourly Weather - Clear - 9:00 AM Alton, IA Hourly Weather - Clear - 10:00 AM Alton, IA Hourly Weather - Clear - 11:00 AM Alton, IA Hourly Weather - Clear - 12:00 PM Alton, IA Hourly Weather - Clear - 1:00 PM Alton, IA Hourly Weather - Clear - 2:00 PM Alton, IA Hourly Weather - Clear - 3:00 PM Alton, IA Hourly Weather - Clear - 4:00 PM Alton, IA Hourly Weather - Clear - 5:00 PM Alton, IA Hourly Weather - Clear - 6:00 PM Alton, IA Hourly Weather - Clear - 7:00 PM Alton, IA Hourly Weather - Clear - 8:00 PM Alton, IA Hourly Weather - Clear - 9:00 PM Alton, IA Hourly Weather - Clear - 10:00 PM Alton, IA Hourly Weather - Clear - 11:00 PM Alton, IA Hourly Weather - Clear - 12:00 AM Alton, IA Hourly Weather - Clear - 1:00 AM Alton, IA Hourly Weather - Clear - 2:00 AM Alton, IA Hourly Weather - Clear - 3:00 AM Alton, IA Hourly Weather - Clear - 4:00 AM
Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear
51°F11°C 51°F11°C 51°F11°C 53°F12°C 56°F13°C 58°F14°C 62°F17°C 65°F18°C 69°F21°C 70°F21°C 72°F22°C 73°F23°C 71°F22°C 69°F21°C 67°F19°C 65°F18°C 63°F17°C 61°F16°C 60°F16°C 58°F14°C 57°F14°C 56°F13°C 55°F13°C 54°F12°C
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0% 0% 0% 4% 4% 4% 4% 4% 4% 2% 2% 2% 2% 2% 2% 0% 0% 0% 0% 0% 0% 1% 1% 1%
49°F9°C 49°F9°C 49°F9°C 50°F10°C 52°F11°C 53°F12°C 53°F12°C 54°F12°C 54°F12°C 54°F12°C 54°F12°C 54°F12°C 54°F12°C 55°F13°C 55°F13°C 55°F13°C 54°F12°C 54°F12°C 54°F12°C 53°F12°C 53°F12°C 53°F12°C 53°F12°C 53°F12°C
93% 93% 93% 90% 86% 83% 72% 68% 59% 57% 53% 51% 55% 61% 65% 70% 72% 78% 81% 83% 86% 90% 93% 96%
S S S S S S S S S S S S S SSE SE SE SSE SSE SSE SSE SSE SSE S S
4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 6 mph 6 mph 6 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph 4 mph 4 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
Clouds
Temperature
Precip. Type
POP
Dewpoint
Humidity
Wind Direction
Wind Speed
Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KLRJ model statistics.

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Prob Precip % = Probability of Precipitation.

Alton 36 Hour Forecast

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

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