Recent USGS measurements place the Great Salt Lake near 4,189.8 ft in mid-to-late September 2026, with a 30-day decline of about 0.4 ft amid ongoing evaporation and limited inflows. Persistent drought conditions, above-average temperatures, and upstream agricultural and municipal diversions continue to suppress tributary contributions from the Bear, Jordan, and Weber rivers, driving the primary downward pressure on elevation. Historical seasonal patterns show the annual minimum typically occurring in fall before winter precipitation and snowmelt arrive, while 2025–2026 snowpack shortfalls have limited expected recovery. State restoration initiatives under the Great Salt Lake 2034 Charter and federal funding proposals aim to increase inflows over time, yet these measures have not yet produced measurable near-term gains sufficient to reverse the current trajectory. Market-implied odds favoring a 2026 low of 4,189.7 ft or higher reflect trader assessment of these stabilizing but still stressed hydrologic conditions ahead of winter data releases.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest Great Salt Lake elevation in 2026?
4,189.7 ft or more 68%
4,189.3 or 4,189.4 ft 26%
Below 4,189.3 ft 25%
4,189.5 or 4,189.6 ft 0
Below 4,189.3 ft
25%
4,189.3 or 4,189.4 ft
26%
4,189.5 or 4,189.6 ft
42%
4,189.7 ft or more
68%
4,189.7 ft or more 68%
4,189.3 or 4,189.4 ft 26%
Below 4,189.3 ft 25%
4,189.5 or 4,189.6 ft 0
Below 4,189.3 ft
25%
4,189.3 or 4,189.4 ft
26%
4,189.5 or 4,189.6 ft
42%
4,189.7 ft or more
68%
The lowest daily reading in the year decides this market, including readings already recorded earlier in 2026; the level does not need to be sustained. If USGS does not publish a reading for one or more days, this market will resolve according to the lowest reading among the days that are published.
USGS reports lake elevation at this gage to 1 decimal place, and values will be used exactly as published, without rounding. Should USGS publish a value carrying more decimal places, it will first be rounded half up to 1 decimal place, so that 4,189.45 ft becomes 4,189.5 ft. The ranges cover consecutive one-decimal values and leave none out, so every reading falls in exactly one range: a lowest reading of exactly 4,189.3 ft resolves the range beginning at 4,189.3 ft to "Yes" and every other range to "No".
This market will resolve on the values published at the time of resolution, whether flagged provisional ("P") or approved ("A"); revisions published afterward will not be considered, except where the correction provision below applies.
If any data remains unpublished or unfinalized, this market will remain open for up to 2 calendar days (ET) after December 31, 2026; it will then resolve based on the finalized data published up to that point.
In case of obvious data integrity issues (i.e., erroneous data), the market may remain open until the end of the third calendar day (ET) after such data is first released to allow for corrections; this applies only to clerical or similar errors, not to USGS differing from other sources.
If the source is unavailable, this market may be extended to January 15, 2027, 11:59 PM ET. If no data for the window is available by then, this market will resolve to "Below 4,189.3 ft".
The primary resolution source for this market will be the USGS Daily Values service for site 10010000; however, a consensus of credible reporting may also be used. The service is available here: https://waterservices.usgs.gov/nwis/dv/?sites=10010000¶meterCd=62614&startDT=2026-01-01&endDT=2026-12-31&format=rdb
Market Opened: Sep 22, 2026, 3:15 PM ET
The lowest daily reading in the year decides this market, including readings already recorded earlier in 2026; the level does not need to be sustained. If USGS does not publish a reading for one or more days, this market will resolve according to the lowest reading among the days that are published.
USGS reports lake elevation at this gage to 1 decimal place, and values will be used exactly as published, without rounding. Should USGS publish a value carrying more decimal places, it will first be rounded half up to 1 decimal place, so that 4,189.45 ft becomes 4,189.5 ft. The ranges cover consecutive one-decimal values and leave none out, so every reading falls in exactly one range: a lowest reading of exactly 4,189.3 ft resolves the range beginning at 4,189.3 ft to "Yes" and every other range to "No".
This market will resolve on the values published at the time of resolution, whether flagged provisional ("P") or approved ("A"); revisions published afterward will not be considered, except where the correction provision below applies.
If any data remains unpublished or unfinalized, this market will remain open for up to 2 calendar days (ET) after December 31, 2026; it will then resolve based on the finalized data published up to that point.
In case of obvious data integrity issues (i.e., erroneous data), the market may remain open until the end of the third calendar day (ET) after such data is first released to allow for corrections; this applies only to clerical or similar errors, not to USGS differing from other sources.
If the source is unavailable, this market may be extended to January 15, 2027, 11:59 PM ET. If no data for the window is available by then, this market will resolve to "Below 4,189.3 ft".
The primary resolution source for this market will be the USGS Daily Values service for site 10010000; however, a consensus of credible reporting may also be used. The service is available here: https://waterservices.usgs.gov/nwis/dv/?sites=10010000¶meterCd=62614&startDT=2026-01-01&endDT=2026-12-31&format=rdb
Recent USGS measurements place the Great Salt Lake near 4,189.8 ft in mid-to-late September 2026, with a 30-day decline of about 0.4 ft amid ongoing evaporation and limited inflows. Persistent drought conditions, above-average temperatures, and upstream agricultural and municipal diversions continue to suppress tributary contributions from the Bear, Jordan, and Weber rivers, driving the primary downward pressure on elevation. Historical seasonal patterns show the annual minimum typically occurring in fall before winter precipitation and snowmelt arrive, while 2025–2026 snowpack shortfalls have limited expected recovery. State restoration initiatives under the Great Salt Lake 2034 Charter and federal funding proposals aim to increase inflows over time, yet these measures have not yet produced measurable near-term gains sufficient to reverse the current trajectory. Market-implied odds favoring a 2026 low of 4,189.7 ft or higher reflect trader assessment of these stabilizing but still stressed hydrologic conditions ahead of winter data releases.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



Beware of external links.
Beware of external links.
Frequently Asked Questions