Water Temperature of the Mongaup River in Glen Spey, NY
Current Water Temperature
Measurement Time: Tuesday, July 15, 2025, 11:15 AM EDT
Temperature Locations
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Local Points of Interest
Lumberland, NYSponsored Content
Station Name: MONGAUP RIVER NEAR MONGAUP NY
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 673 feet / 205 meters
Nearest Address:
20–98 Powerhouse Rd
Glen Spey, NY 12737
Sullivan County
GPS Coordinates: 41.4612222, -74.75877778
Nearby Water Temperatures
Mongaup River, Forestburgh, NY (7.4 mi)Neversink River, Godeffroy, NY (8.2 mi)
Basher Kill, Westbrookville, NY (11.0 mi)
Delaware River, Narrowsburg, NY (12.2 mi)
Neversink River, Bridgeville, NY (14.3 mi)
Tenmile River, Tusten, NY (15.0 mi)
Sheldrake Stream, Thompsonville, NY (15.9 mi)
Gumaer Brook, Wurtsboro, NY (17.7 mi)
Callicoon Creek, Callicoon, NY (25.5 mi)
Neversink River, Neversink, NY (25.6 mi)
Neversink Reservoir, Neversink, NY (26.1 mi)
Chestnut Creek, Grahamsville, NY (29.2 mi)
Cannonsville Reservoir Diversion Channel, Grahamsville, NY (29.8 mi)
Willowemoc Creek, Livingston Manor, NY (30.7 mi)
Neversink River, Claryville, NY (30.9 mi)
Weather for Glen Spey, New York
Current Weather

Humidity: 54%
Feels Like: 97.8°F
Wind: E 3.8 mph
Wind Gusts: 5.5 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 4.1
Five Day Weather Forecast

Tue
H: 90°F
L: 69°F

Wed
H: 84°F
L: 66°F

Thu
H: 91°F
L: 74°F

Fri
H: 79°F
L: 60°F

Sat
H: 84°F
L: 52°F
Air Quality
Nitrogen Dioxide: 15.73 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 100 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:31 PM
Daylight: 14 hrs 53 mins
Moon Transit: 4:43 AM
Moonset: 10:44 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.7%
Best Times for Fishing or Hunting
Major Periods
4:13 AM - 6:43 AM12:00 AM - 12:00 AM
Minor Periods
12:00 AM - 12:00 AM10:14 AM - 11:44 AM
Action Rating: 2 out of 5
Heat Advisory issued July 15 at 2:14PM EDT until July 17 at 10:00PM EDT by NWS Upton NY
Effective: Tue July 15, 2025, 2:14 PM
Expires: Wed July 16, 2025, 5:00 AM
* WHAT...Heat index values up to 102 expected. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From 11 AM Wednesday to 10 PM EDT Thursday. The highest heat index values will occur during the afternoon each day. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. If you don't have home air conditioning, continue to seek out cool spaces each day as long as it remains hot, and for a few days after if your home is still hot. Check on vulnerable friends, family members and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! In cases of heat stroke call 9 1 1.
Heat Advisory issued July 15 at 2:14PM EDT until July 17 at 10:00PM EDT by NWS Upton NY
Effective: Tue July 15, 2025, 2:14 PM
Expires: Wed July 16, 2025, 5:00 AM
* WHAT...Heat index values up to 102 expected. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From 11 AM Wednesday to 10 PM EDT Thursday. The highest heat index values will occur during the afternoon each day. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. If you don't have home air conditioning, continue to seek out cool spaces each day as long as it remains hot, and for a few days after if your home is still hot. Check on vulnerable friends, family members and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! In cases of heat stroke call 9 1 1.
Heat Advisory issued July 15 at 2:14PM EDT until July 17 at 10:00PM EDT by NWS Upton NY
Effective: Tue July 15, 2025, 2:14 PM
Expires: Wed July 16, 2025, 5:00 AM
* WHAT...Heat index values up to 102 expected. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From 11 AM Wednesday to 10 PM EDT Thursday. The highest heat index values will occur during the afternoon each day. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. If you don't have home air conditioning, continue to seek out cool spaces each day as long as it remains hot, and for a few days after if your home is still hot. Check on vulnerable friends, family members and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! In cases of heat stroke call 9 1 1.
Heat Advisory issued July 15 at 1:00PM EDT until July 16 at 8:00PM EDT by NWS Albany NY
Effective: Tue July 15, 2025, 1:00 PM
Expires: Wed July 16, 2025, 6:00 AM
* WHAT...Heat index values of 95 of 100. * WHERE...Portions of eastern New York. * WHEN...From noon to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The combination of hot temperatures and high levels of humidity will make for dangerous heat index values, or feel-like temperatures, ranging from 95 to 100 throughout portions of the Hudson and Mohawk River Valleys Wednesday.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Heat Advisory issued July 15 at 2:14PM EDT until July 17 at 10:00PM EDT by NWS Upton NY
Effective: Tue July 15, 2025, 2:14 PM
Expires: Wed July 16, 2025, 5:00 AM
* WHAT...Heat index values up to 102 expected. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From 11 AM Wednesday to 10 PM EDT Thursday. The highest heat index values will occur during the afternoon each day. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
A Heat Advisory is issued when the combination of heat and humidity is expected to make it feel like it is 95 to 99 degrees for two or more consecutive days, or 100 to 104 degrees for any length of time. Seniors and those with chronic health problems or mental health conditions are at an increased risk. Homes without air conditioning can be much hotter than outdoor temperatures. Use air conditioning to stay cool at home or go to a place that has air conditioning. If you don't have home air conditioning, continue to seek out cool spaces each day as long as it remains hot, and for a few days after if your home is still hot. Check on vulnerable friends, family members and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! In cases of heat stroke call 9 1 1.
Weather Forecast
Average Temperature: 76.8°F
Average Humidity: 85%
Wind: 4.3 mph
UV Index: 2.4
Air Quality
Nitrogen Dioxide: 9.48 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 89.84 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:31 PM
Daylight: 14 hrs 53 mins
Moon Transit: 4:43 AM
Moonset: 10:44 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.7%
Best Times for Fishing or Hunting
Major Periods
4:13 AM - 6:43 AM12:00 AM - 12:00 AM
Minor Periods
12:00 AM - 12:00 AM10:14 AM - 11:44 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 76.1°F
Average Humidity: 86%
Wind: 10.1 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 15.09 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 107.44 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:31 PM
Daylight: 14 hrs 51 mins
Moon Transit: 1:15 AM
Moonset: 11:55 AM
Moon Phase: Waning Gibbous
Moon Illumination: 55.7%
Best Times for Fishing or Hunting
Major Periods
12:45 AM - 3:15 AM12:45 AM - 3:15 AM
Minor Periods
11:25 AM - 12:55 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 79.6°F
Average Humidity: 89%
Wind: 12.3 mph
UV Index: 2.2
Air Quality
Nitrogen Dioxide: 8.97 μg/m3
Sulphur Dioxide: 2.82 μg/m3
Ozone: 90.6 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:30 PM
Daylight: 14 hrs 50 mins
Moon Transit: 6:17 AM
Moonset: 1:08 PM
Moon Phase: Last Quarter
Moon Illumination: 44.4%
Best Times for Fishing or Hunting
Major Periods
5:47 AM - 8:17 AM8:17 PM - 10:47 PM
Minor Periods
12:38 AM - 2:08 PM12:00 AM - 12:00 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 72.8°F
Average Humidity: 74%
Wind: 11.4 mph
UV Index: 1.8
Air Quality
Nitrogen Dioxide: 5.84 μg/m3
Sulphur Dioxide: 3.21 μg/m3
Ozone: 89.32 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:29 PM
Daylight: 14 hrs 48 mins
Moon Transit: 7:06 AM
Moonset: 2:24 PM
Moon Phase: Last Quarter
Moon Illumination: 33.4%
Best Times for Fishing or Hunting
Major Periods
6:36 AM - 9:06 AM9:09 PM - 11:39 PM
Minor Periods
1:54 PM - 3:24 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 67.6°F
Average Humidity: 63%
Wind: 5.1 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 9.49 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 59.15 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:29 PM
Daylight: 14 hrs 47 mins
Moon Transit: 8:00 AM
Moonset: 3:42 PM
Moon Phase: Last Quarter
Moon Illumination: 23.2%
Best Times for Fishing or Hunting
Major Periods
7:30 AM - 10:00 AM12:00 AM - 12:00 AM
Minor Periods
3:12 PM - 4:42 PM12:02 AM - 1:32 AM
Action Rating: 2 out of 5