St. Johns River above Lake Harney
8.6 mi- Level
- 6.8 ft
Forecast peak 6.8 ft Sat 8 AM, action stage
Reading from Sat 6:30 AM · NWS gauge page
Appearance
Observed 7:45 AM EDT at KSFB
Sunny and 64°18°, rain ~10 PM–1 AM (49%).
Today: low 68°20° (likely 62°17° to 68°20°), high 80°27° (likely 78°26° to 80°27°).
Now 64°18°
Sunny
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 8a | Sunny | 63°17° (likely 63°17° to 65°18°) | 63°17° | 10%, 0.01 in0.3 mm | 10 mph16 km/h from N, gusts 12 mph19 km/h | 93% | 12% | 0 |
| Sat 9a | Sunny | 66°19° (likely 66°19° to 68°20°) | 66°19° | 10%, 0.01 in0.3 mm | 10 mph16 km/h from N, gusts 17 mph27 km/h | 93% | 12% | 1 |
| Sat 10a | Sunny | 71°22° (likely 71°22° to 73°23°) | 71°22° | 10%, 0.01 in0.3 mm | 10 mph16 km/h from N, gusts 16 mph26 km/h | 84% | 10% | 2 |
| Sat 11a | Sunny | 76°24° (likely 74°23° to 77°25°) | 76°24° | 10%, 0.01 in0.3 mm | 10 mph16 km/h from N, gusts 18 mph29 km/h | 74% | 14% | 4 |
| Sat 12p | Showers | 78°26° (likely 74°23° to 79°26°) | 78°26° | 20%, 0.01 in0.3 mm | 15 mph24 km/h from N, gusts 19 mph31 km/h | 69% | 57% | 5 |
| Sat 1p | Partly sunny | 79°26° (likely 77°25° to 79°26°) | 79°26° | 30%, 0.01 in0.3 mm | 15 mph24 km/h from NNE, gusts 18 mph30 km/h | 67% | 43% | 6 |
| Sat 2p | Mostly sunny | 79°26° (likely 78°26° to 80°27°) | 79°26° | 30% | 15 mph24 km/h from NNE, gusts 19 mph30 km/h | 64% | 34% | 4 |
| Sat 3p | Drizzle | 80°27° (likely 71°22° to 80°27°) | 82°28° | 30% | 15 mph24 km/h from NNE, gusts 23 mph37 km/h | 65% | 60% | 4 |
| Sat 4p | Rain | 78°26° (likely 73°23° to 79°26°) | 78°26° | 30% | 15 mph24 km/h from NNE, gusts 21 mph34 km/h | 69% | 63% | 4 |
| Sat 5p | Partly sunny | 78°26° (likely 73°23° to 78°26°) | 78°26° | 30% | 15 mph24 km/h from NNE, gusts 23 mph36 km/h | 69% | 48% | 3 |
| Sat 6p | Mostly sunny | 75°24° (likely 70°21° to 75°24°) | 75°24° | 30% | 15 mph24 km/h from NNE, gusts 23 mph37 km/h | 76% | 43% | 1 |
| Sat 7p | Drizzle | 72°22° (likely 69°21° to 73°23°) | 72°22° | 30% | 15 mph24 km/h from N, gusts 22 mph35 km/h | 84% | 53% | 0 |
| Sat 8p | Rain | 70°21° (likely 68°20° to 71°22°) | 70°21° | 30%, 0.07 in1.8 mm | 10 mph16 km/h from N, gusts 19 mph30 km/h | 87% | 59% | 0 |
| Sat 9p | Drizzle | 70°21° (likely 68°20° to 70°21°) | 70°21° | 40%, 0.07 in1.8 mm | 10 mph16 km/h from N, gusts 12 mph20 km/h | 87% | 29% | 0 |
| Sat 10p | Cloudy | 69°21° (likely 68°20° to 70°21°) | 69°21° | 40%, 0.07 in1.8 mm | 10 mph16 km/h from NNE, gusts 16 mph26 km/h | 93% | 64% | 0 |
| Sat 11p | Cloudy | 69°21° (likely 67°19° to 70°21°) | 69°21° | 50%, 0.07 in1.8 mm | 15 mph24 km/h from NNE, gusts 25 mph40 km/h | 93% | 70% | 0 |
| Sun 12a | Mostly clear | 69°21° (likely 65°18° to 71°22°) | 69°21° | 50%, 0.07 in1.8 mm | 15 mph24 km/h from NNE, gusts 14 mph22 km/h | 93% | 37% | 0 |
| Sun 1a | Partly cloudy | 68°20° (likely 67°19° to 71°22°) | 68°20° | 40%, 0.07 in1.8 mm | 15 mph24 km/h from NNE, gusts 18 mph30 km/h | 97% | 56% | 0 |
| Sun 2a | Drizzle | 69°21° (likely 67°19° to 71°22°) | 69°21° | 40%, 0.12 in3 mm | 15 mph24 km/h from NNE, gusts 23 mph37 km/h | 93% | 68% | 0 |
| Sun 3a | Partly cloudy | 68°20° (likely 67°19° to 71°22°) | 68°20° | 40%, 0.12 in3 mm | 15 mph24 km/h from NNE, gusts 19 mph31 km/h | 97% | 55% | 0 |
| Sun 4a | Clear | 69°21° (likely 68°20° to 72°22°) | 69°21° | 40%, 0.12 in3 mm | 15 mph24 km/h from NNE, gusts 19 mph30 km/h | 93% | 42% | 0 |
| Sun 5a | Showers | 70°21° (likely 67°19° to 71°22°) | 70°21° | 30%, 0.12 in3 mm | 15 mph24 km/h from NNE, gusts 20 mph32 km/h | 90% | 24% | 0 |
| Sun 6a | Showers | 70°21° (likely 66°19° to 72°22°) | 70°21° | 30%, 0.12 in3 mm | 15 mph24 km/h from NNE, gusts 18 mph29 km/h | 90% | 27% | 0 |
| Sun 7a | Showers | 70°21° (likely 66°19° to 72°22°) | 70°21° | 30%, 0.12 in3 mm | 15 mph24 km/h from NNE, gusts 19 mph31 km/h | 87% | 28% | 0 |
| Sun 8a | Sunny | 70°21° (likely 67°19° to 72°22°) | 70°21° | 20%, 0.05 in1.3 mm | 15 mph24 km/h from NNE, gusts 20 mph32 km/h | 90% | 29% | 0 |
| Sun 9a | Sunny | 72°22° (likely 71°22° to 74°23°) | 72°22° | 30%, 0.05 in1.3 mm | 15 mph24 km/h from NNE, gusts 21 mph33 km/h | 90% | 21% | 1 |
| Sun 10a | Sunny | 76°24° (likely 75°24° to 77°25°) | 76°24° | 40%, 0.05 in1.3 mm | 20 mph32 km/h from NE, gusts 31 mph51 km/h | 82% | 23% | 2 |
| Sun 11a | Sunny | 78°26° (likely 77°25° to 78°26°) | 78°26° | 50%, 0.05 in1.3 mm | 20 mph32 km/h from NE, gusts 31 mph51 km/h | 76% | 20% | 4 |
| Sun 12p | Mostly sunny | 79°26° (likely 78°26° to 80°27°) | 79°26° | 50%, 0.05 in1.3 mm | 20 mph32 km/h from NE, gusts 31 mph50 km/h | 77% | 33% | 5 |
| Sun 1p | Partly sunny | 79°26° (likely 77°25° to 81°27°) | 79°26° | 50%, 0.05 in1.3 mm | 20 mph32 km/h from NE, gusts 31 mph50 km/h | 74% | 56% | 5 |
| Sun 2p | Mostly sunny | 79°26° (likely 77°25° to 82°28°) | 79°26° | 50%, 0.05 in1.3 mm | 20 mph32 km/h from NE, gusts 31 mph50 km/h | 74% | 42% | 5 |
| Sun 3p | Mostly sunny | 80°27° (likely 77°25° to 81°27°) | 83°28° | 50%, 0.05 in1.3 mm | 20 mph32 km/h from NE, gusts 30 mph48 km/h | 72% | 43% | 4 |
| Sun 4p | Cloudy | 78°26° (likely 74°23° to 79°26°) | 78°26° | 40%, 0.05 in1.3 mm | 20 mph32 km/h from NNE, gusts 31 mph50 km/h | 76% | 65% | 4 |
| Sun 5p | Showers | 78°26° (likely 74°23° to 78°26°) | 78°26° | 40%, 0.05 in1.3 mm | 20 mph32 km/h from NNE, gusts 31 mph50 km/h | 74% | 25% | 3 |
| Sun 6p | Showers | 76°24° (likely 71°22° to 76°24°) | 76°24° | 40%, 0.05 in1.3 mm | 20 mph32 km/h from NNE, gusts 30 mph49 km/h | 79% | 67% | 1 |
| Sun 7p | Showers | 73°23° (likely 70°21° to 73°23°) | 73°23° | 40%, 0.05 in1.3 mm | 15 mph24 km/h from NNE, gusts 28 mph45 km/h | 87% | 39% | 0 |
| Sun 8p | Cloudy | 72°22° (likely 69°21° to 72°22°) | 72°22° | 30%, 0.01 in0.3 mm | 15 mph24 km/h from NNE, gusts 28 mph45 km/h | 87% | 61% | 0 |
| Sun 9p | Partly cloudy | 71°22° (likely 69°21° to 72°22°) | 71°22° | 30%, 0.01 in0.3 mm | 15 mph24 km/h from NNE, gusts 23 mph37 km/h | 90% | 53% | 0 |
| Sun 10p | Showers | 71°22° (likely 68°20° to 72°22°) | 71°22° | 30%, 0.01 in0.3 mm | 15 mph24 km/h from NNE, gusts 19 mph31 km/h | 90% | 63% | 0 |
| Sun 11p | Cloudy | 71°22° (likely 69°21° to 72°22°) | 71°22° | 30%, 0.01 in0.3 mm | 15 mph24 km/h from NNE, gusts 20 mph31 km/h | 90% | 58% | 0 |
| Mon 12a | Showers | 71°22° (likely 69°21° to 72°22°) | 71°22° | 30%, 0.01 in0.3 mm | 15 mph24 km/h from NNE, gusts 21 mph34 km/h | 90% | 58% | 0 |
| Mon 1a | Drizzle | 71°22° (likely 69°21° to 72°22°) | 71°22° | 30%, 0.01 in0.3 mm | 15 mph24 km/h from NNE, gusts 22 mph36 km/h | 87% | 57% | 0 |
| Mon 2a | Showers | 70°21° (likely 69°21° to 72°22°) | 70°21° | 20% | 15 mph24 km/h from NNE, gusts 22 mph36 km/h | 90% | 47% | 0 |
| Mon 3a | Showers | 70°21° (likely 69°21° to 72°22°) | 70°21° | 20% | 15 mph24 km/h from NNE, gusts 20 mph33 km/h | 90% | 60% | 0 |
| Mon 4a | Showers | 70°21° (likely 69°21° to 72°22°) | 70°21° | 20% | 15 mph24 km/h from NNE, gusts 21 mph34 km/h | 90% | 57% | 0 |
| Mon 5a | Showers | 70°21° (likely 70°21° to 72°22°) | 70°21° | 20% | 15 mph24 km/h from NNE, gusts 23 mph37 km/h | 90% | 42% | 0 |
| Mon 6a | Showers | 70°21° (likely 69°21° to 72°22°) | 70°21° | 20% | 15 mph24 km/h from NNE, gusts 22 mph36 km/h | 90% | 22% | 0 |
| Mon 7a | Drizzle | 70°21° (likely 69°21° to 72°22°) | 70°21° | 20% | 15 mph24 km/h from NNE, gusts 23 mph37 km/h | 90% | 30% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
30% chance · 0.02 in0.5 mm
Evening
6 PM–midnight
50% chance · 0.28 in7.1 mm
Overnight
midnight–6 AM
50% chance · 0.62 in16 mm
Official NWS forecast
Today: A chance of rain showers between noon and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 80. North wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Tonight: A chance of showers and thunderstorms. Partly cloudy, with a low around 68. North northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
50% chance · 0.44 in11 mm
Afternoon
noon–6 PM
50% chance · 0.3 in7.6 mm
Evening
6 PM–midnight
40% chance · 0.14 in3.6 mm
Overnight
midnight–6 AM
30% chance · 0.02 in0.5 mm
Official NWS forecast
Day: A chance of rain showers before 8am, then a slight chance of showers and thunderstorms between 8am and 9am, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. North northeast wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Night: A chance of rain showers. Mostly cloudy, with a low around 70. North northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
20% chance · 0.03 in0.7 mm
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers. Sunny, with a high near 80. Northeast wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
Night: A slight chance of rain showers before 8pm. Mostly clear, with a low around 69. North northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 80. Northeast wind 15 to 20 mph, with gusts as high as 35 mph.
Night: Mostly clear, with a low around 67. Northeast wind 15 to 20 mph, with gusts as high as 35 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 2pm. Mostly sunny, with a high near 79. Northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Night: A slight chance of rain showers before 8pm. Partly cloudy, with a low around 68. Northeast wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
30% chance · 0.02 in0.5 mm
Evening
6 PM–midnight
20% chance
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers after 8am. Mostly sunny, with a high near 80. Northeast wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Night: A chance of rain showers before 8pm. Partly cloudy, with a low around 67. Northeast wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
20% chance · 0.02 in0.4 mm
Evening
6 PM–midnight
20% chance
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 8am. Mostly sunny, with a high near 80. Northeast wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Night: A slight chance of rain showers before 8pm. Partly cloudy, with a low around 66. Northeast wind 10 to 15 mph, with gusts as high as 30 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
20% chance · 0.03 in0.8 mm
Evening
6 PM–midnight
30% chance · 0.02 in0.6 mm
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
20% chance · 0.01 in0.3 mm
Evening
6 PM–midnight
20% chance
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Dry, high 80°, low 68°.
51% chance of rain, high 80°, low 70°.
Dry, high 80°, low 69°.
Mostly dry, highs 79–82°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (MLB) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 6.8 ft Sat 8 AM, action stage
Reading from Sat 6:30 AM · NWS gauge page
Reading from Sat 6:30 AM · NWS gauge page
Reading from Sat 5:45 AM · NWS gauge page
Reading from Sat 5:30 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 74% less cooling than a typical week.
Cooling degree days, base 65°F
Sticky, humid air (dew point 61°F).
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is 3°2° colder than typical.
On average 4°2° colder than normal (daily mean temperature).
Black Hammock weather by month: normals, records, snow and freeze dates
Sunrise 7:31 AM, sunset 6:45 PM.
Clouds most of the night (about 47% cover).
Waxing gibbous
96% lit · growing