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Local weather forecast by
What is AHPS?
River at a Glance
Downloads for Mississippi River at Alton (ALOI2)
Advanced Hydrologic Prediction Service (AHPS) River Gauge Current and Forecast Flood Stages
Scale to Flood Categories
RSS files for ALOI2
Gaging shelter at the downtown Alton gage, looking upstream on September 17, 2021.
Wire weight gage at the downtown Alton gage, the site of the former tailwater gage for L&D 26.
Downtown Alton at the intersection of Broadway and U.S. 67 on June 4, 2019
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National Weather Service
St. Louis Weather Forecast Office
12 Missouri Research Park Drive
St. Charles, MO 63304
Page last modified: 2-Nov-2020 7:29 PM