Observed 11:25 PM CDT at KPTN

Donaldsonville, LA weather

Clear and 57°14°.

Forecasts agree

Now 57°14°

Clear

Wind: Calm; Up to 5 mph8 km/h through 11 AM
Dew point: 55°13°; A little sticky
Humidity: 94%; Air 57°14°, dew point 55°13° · fog or dew likely
UV tomorrow: 6High; High 1–3 PM · peak 6
Pressure: 30.29 inHg1026 hPa; Rising slowly · +0.02 inHg+0.6 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 53°12° tomorrow at 6 AM
Above 70°21° tomorrow by 11 AM
High 79°26° tomorrow at 4 PM
Below 70°21° tomorrow night after 7 PM

TonightDown to 54°12° by 5 AM · Clear
Tomorrow morningUp to 72°22° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 79°26° by 4 PM · Mostly cloudy
Tomorrow nightDown to 57°14° by 5 AM · Mostly cloudy
Monday morningUp to 72°22° by 11 AM · Mostly cloudy
Monday afternoonUp to 80°27° by 4 PM · Mostly cloudy
Monday nightDown to 64°18° by 10 PM · Mostly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 11p	Clear	60°16° (likely 57°14° to 62°17°)	59°15°	0%	0 mph0 km/h, gusts 4 mph7 km/h	70%	0%	0
Sun 12a	Clear	59°15° (likely 55°13° to 61°16°)	58°14°	0%	0 mph0 km/h, gusts 5 mph9 km/h	72%	1%	0
Sun 1a	Clear	57°14° (likely 54°12° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	77%	9%	0
Sun 2a	Clear	56°13° (likely 53°12° to 60°16°)	57°14°	0%	0 mph0 km/h, gusts 6 mph9 km/h	80%	14%	0
Sun 3a	Clear	56°13° (likely 53°12° to 59°15°)	56°13°	0%	5 mph8 km/h from NE, gusts 9 mph14 km/h	86%	7%	0
Sun 4a	Clear	55°13° (likely 52°11° to 59°15°)	55°13°	0%	5 mph8 km/h from NE, gusts 10 mph16 km/h	90%	21%	0
Sun 5a	Clear	54°12° (likely 52°11° to 58°14°)	55°13°	0%	5 mph8 km/h from NE, gusts 11 mph18 km/h	93%	20%	0
Sun 6a	Clear	53°12° (likely 51°11° to 58°14°)	54°12°	0%	5 mph8 km/h from NE, gusts 12 mph19 km/h	93%	55%	0
Sun 7a	Mostly sunny	53°12° (likely 52°11° to 58°14°)	55°13°	0%	5 mph8 km/h from NE, gusts 12 mph19 km/h	89%	32%	0
Sun 8a	Cloudy	58°14° (likely 53°12° to 60°16°)	59°15°	0%	5 mph8 km/h from NE, gusts 12 mph19 km/h	77%	56%	0
Sun 9a	Cloudy	64°18° (likely 59°15° to 64°18°)	65°18°	0%	5 mph8 km/h from NE, gusts 14 mph22 km/h	67%	63%	1
Sun 10a	Mostly sunny	69°21° (likely 66°19° to 69°21°)	70°21°	0%	5 mph8 km/h from NE, gusts 14 mph22 km/h	63%	50%	3
Sun 11a	Mostly sunny	72°22° (likely 71°22° to 74°23°)	73°23°	0%	5 mph8 km/h from E, gusts 12 mph19 km/h	59%	41%	4
Sun 12p	Mostly sunny	75°24° (likely 74°23° to 78°26°)	76°24°	0%	5 mph8 km/h from E, gusts 11 mph17 km/h	54%	46%	5
Sun 1p	Mostly sunny	78°26° (likely 76°24° to 79°26°)	77°25°	0%	10 mph16 km/h from E, gusts 10 mph17 km/h	50%	50%	6
Sun 2p	Mostly sunny	78°26° (likely 77°25° to 80°27°)	78°26°	0%	10 mph16 km/h from E, gusts 11 mph18 km/h	48%	65%	6
Sun 3p	Partly sunny	78°26° (likely 77°25° to 80°27°)	78°26°	0%	10 mph16 km/h from E, gusts 12 mph20 km/h	47%	72%	5
Sun 4p	Partly sunny	79°26° (likely 76°24° to 79°26°)	77°25°	0%	10 mph16 km/h from E, gusts 13 mph21 km/h	45%	72%	4
Sun 5p	Partly sunny	75°24° (likely 74°23° to 78°26°)	74°23°	0%	5 mph8 km/h from E, gusts 13 mph20 km/h	52%	82%	2
Sun 6p	Partly cloudy	72°22° (likely 71°22° to 75°24°)	70°21°	0%	5 mph8 km/h from E, gusts 13 mph21 km/h	59%	72%	1
Sun 7p	Partly cloudy	68°20° (likely 67°19° to 69°21°)	67°19°	0%	0 mph0 km/h, gusts 9 mph15 km/h	70%	79%	0
Sun 8p	Partly cloudy	66°19° (likely 65°18° to 66°19°)	65°18°	0%	0 mph0 km/h, gusts 10 mph16 km/h	73%	81%	0
Sun 9p	Partly cloudy	64°18° (likely 63°17° to 65°18°)	64°18°	0%	0 mph0 km/h, gusts 9 mph14 km/h	78%	68%	0
Sun 10p	Mostly cloudy	63°17° (likely 61°16° to 64°18°)	63°17°	0%	0 mph0 km/h, gusts 9 mph14 km/h	81%	63%	0
Sun 11p	Partly cloudy	62°17° (likely 59°15° to 63°17°)	61°16°	0%	0 mph0 km/h, gusts 8 mph13 km/h	81%	68%	0
Mon 12a	Cloudy	61°16° (likely 57°14° to 63°17°)	60°16°	0%	0 mph0 km/h, gusts 7 mph11 km/h	81%	65%	0
Mon 1a	Cloudy	60°16° (likely 57°14° to 63°17°)	60°16°	0%	0 mph0 km/h, gusts 7 mph11 km/h	84%	76%	0
Mon 2a	Cloudy	59°15° (likely 56°13° to 63°17°)	60°16°	0%	0 mph0 km/h, gusts 7 mph11 km/h	87%	77%	0
Mon 3a	Cloudy	58°14° (likely 56°13° to 62°17°)	59°15°	0%	5 mph8 km/h from NE, gusts 7 mph11 km/h	90%	85%	0
Mon 4a	Cloudy	58°14° (likely 56°13° to 62°17°)	58°14°	0%	5 mph8 km/h from NE, gusts 8 mph13 km/h	90%	71%	0
Mon 5a	Cloudy	57°14° (likely 55°13° to 61°16°)	58°14°	0%	5 mph8 km/h from NE, gusts 10 mph17 km/h	90%	85%	0
Mon 6a	Cloudy	56°13° (likely 55°13° to 61°16°)	58°14°	0%	5 mph8 km/h from NE, gusts 12 mph19 km/h	90%	82%	0
Mon 7a	Cloudy	56°13° (likely 54°12° to 61°16°)	58°14°	0%	5 mph8 km/h from NE, gusts 12 mph19 km/h	90%	81%	0
Mon 8a	Cloudy	60°16° (likely 56°13° to 62°17°)	62°17°	0%	5 mph8 km/h from NE, gusts 12 mph19 km/h	81%	69%	0
Mon 9a	Cloudy	64°18° (likely 62°17° to 65°18°)	66°19°	0%	5 mph8 km/h from NE, gusts 14 mph22 km/h	75%	71%	1
Mon 10a	Cloudy	69°21° (likely 67°19° to 71°22°)	71°22°	0%	5 mph8 km/h from E, gusts 13 mph22 km/h	68%	91%	2
Mon 11a	Cloudy	72°22° (likely 71°22° to 75°24°)	74°23°	0%	5 mph8 km/h from E, gusts 11 mph17 km/h	61%	89%	4
Mon 12p	Cloudy	75°24° (likely 74°23° to 78°26°)	76°24°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	55%	82%	5
Mon 1p	Partly sunny	78°26° (likely 76°24° to 79°26°)	78°26°	0%	5 mph8 km/h from E, gusts 11 mph17 km/h	50%	78%	5
Mon 2p	Cloudy	78°26° (likely 77°25° to 79°26°)	78°26°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	50%	94%	5
Mon 3p	Cloudy	79°26° (likely 78°26° to 79°26°)	78°26°	0%	5 mph8 km/h from E, gusts 10 mph17 km/h	50%	89%	4
Mon 4p	Partly sunny	80°27° (likely 77°25° to 80°27°)	77°25°	0%	5 mph8 km/h from E, gusts 11 mph17 km/h	49%	81%	3
Mon 5p	Partly sunny	77°25° (likely 75°24° to 78°26°)	75°24°	0%	5 mph8 km/h from E, gusts 11 mph17 km/h	54%	76%	2
Mon 6p	Partly cloudy	74°23° (likely 72°22° to 75°24°)	71°22°	0%	5 mph8 km/h from E, gusts 11 mph18 km/h	62%	77%	1
Mon 7p	Partly cloudy	71°22° (likely 67°19° to 71°22°)	68°20°	0%	0 mph0 km/h, gusts 9 mph15 km/h	68%	61%	0
Mon 8p	Partly cloudy	69°21° (likely 65°18° to 69°21°)	66°19°	0%	0 mph0 km/h, gusts 9 mph14 km/h	73%	86%	0
Mon 9p	Partly cloudy	66°19° (likely 64°18° to 67°19°)	65°18°	0%	0 mph0 km/h, gusts 9 mph15 km/h	81%	89%	0
Mon 10p	Partly cloudy	64°18° (likely 62°17° to 66°19°)	64°18°	0%	0 mph0 km/h, gusts 8 mph14 km/h	87%	77%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Sunny. High 80°27°, low 52°11°. Typical 78°26° / 55°13°. Dry. Forecasts agree.
1. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Official NWS forecast
Tonight: Clear. Low around 52, with temperatures rising to around 54 overnight. Northeast wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
80°27°–81°27°
Low, likely
51°11°–56°13°
Typical high / low
78°26° / 55°13°
Wind
11 mph18 km/h, gusts 22 mph35 km/h
UV peak
6
Tomorrow, Oct 25. Mostly sunny. High 79°26°, low 56°13°. Typical 78°26° / 55°13°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 79°26°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  Dry
Official NWS forecast
Day: Sunny. High near 79, with temperatures falling to around 75 in the afternoon. Northeast wind 5 to 10 mph.
Night: Partly cloudy, with a low around 56. East wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
77°25°–80°27°
Low, likely
51°11°–58°14°
Typical high / low
78°26° / 55°13°
Wind
10 mph16 km/h, gusts 22 mph35 km/h
UV peak
6
Monday, Oct 26. Cloudy. High 80°27°, low 58°14°. Typical 77°25° / 55°13°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 60°16°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 80°27°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 69°21°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 59°15°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 80. Northeast wind around 5 mph.
Night: Partly cloudy, with a low around 58. East wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
77°25°–80°27°
Low, likely
54°12°–61°16°
Typical high / low
77°25° / 55°13°
Wind
9 mph14 km/h, gusts 18 mph28 km/h
UV peak
5
Tuesday, Oct 27. Cloudy. High 81°27°, low 59°15°. Typical 77°25° / 54°12°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 60°16°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 81°27°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 67°20°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 60°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 81. Northeast wind around 5 mph.
Night: Mostly cloudy, with a low around 59. East wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
79°26°–82°28°
Low, likely
57°14°–60°16°
Typical high / low
77°25° / 54°12°
Wind
11 mph17 km/h, gusts 18 mph29 km/h
UV peak
5
Wednesday, Oct 28. Partly sunny. High 82°28°, low 58°14°. Typical 76°24° / 54°12°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 61°16°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 81°27°
  Dry
3. Evening
  6 PM–midnight
  Clear, 68°20°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 59°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 82. Northeast wind around 5 mph.
Night: Mostly clear, with a low around 58. East wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
80°27°–82°28°
Low, likely
56°13°–61°16°
Typical high / low
76°24° / 54°12°
Wind
11 mph18 km/h, gusts 18 mph29 km/h
UV peak
6
Thursday, Oct 29. Mostly sunny. High 82°28°, low 58°14°. Typical 76°24° / 54°12°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 61°16°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 82°28°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 69°20°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 61°16°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 82. Northeast wind 5 to 10 mph.
Night: Mostly clear, with a low around 58. East wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
79°26°–83°28°
Low, likely
57°14°–61°16°
Typical high / low
76°24° / 54°12°
Wind
12 mph19 km/h, gusts 19 mph31 km/h
UV peak
6
Friday, Oct 30. Cloudy. High 82°28°, low 62°17°. Typical 76°24° / 53°12°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 65°18°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 83°28°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 72°22°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 66°19°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 82. East wind 5 to 10 mph.
Night: Partly cloudy, with a low around 62. East wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
80°27°–84°29°
Low, likely
59°15°–65°18°
Typical high / low
76°24° / 53°12°
Wind
12 mph19 km/h, gusts 24 mph39 km/h
UV peak
4
Saturday, Oct 31. Partly sunny. High 84°29°, low 67°19°. Typical 76°24° / 53°12°. Rain 0.19 in4.8 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 70°21°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 82°28°
  30% chance · 0.09 in2.3 mm
3. Evening
  6 PM–midnight
  Clear, 73°23°
  30% chance · 0.05 in1.2 mm
4. Overnight
  midnight–6 AM
  Cloudy, 69°21°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers after 1pm. Mostly sunny, with a high near 84. East wind 5 to 10 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
78°26°–86°30°
Low, likely
63°17°–70°21°
Typical high / low
76°24° / 53°12°
Wind
12 mph19 km/h, gusts 21 mph33 km/h
UV peak
5
Sunday, Nov 1. Drizzle. High 85°29°, low 70°21°. Typical 75°24° / 52°11°. Rain 0.06 in1.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 73°23°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 86°30°
  30% chance · 0.03 in0.7 mm
3. Evening
  6 PM–midnight
  Clear, 76°24°
  30% chance
4. Overnight
  midnight–6 AM
  Partly cloudy, 71°22°
  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.
High, likely
81°27°–89°32°
Low, likely
65°18°–73°23°
Typical high / low
75°24° / 52°11°
Wind
9 mph14 km/h, gusts 16 mph26 km/h
UV peak
5
Monday, Nov 2. Cloudy. High 83°28°, low 65°18°. Typical 75°24° / 52°11°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 73°23°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 82°28°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 68°20°
  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.
High, likely
76°24°–91°33°
Low, likely
54°12°–71°22°
Typical high / low
75°24° / 52°11°
Wind
15 mph24 km/h, gusts 27 mph43 km/h
UV peak
5

10 days15 days30 days

The outlook

Today
Dry, high 80°, low 52°.
Tomorrow
Dry, high 79°, low 56°.
Monday
Dry, high 80°, low 58°.
Rest of week
Mostly dry, highs 81–85°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (LIX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Mississippi River at Donaldsonville

2.1 mi

Below flood stage

Level: 6.3 ft

Forecast peak 6.0 ft Sun 1 AM

Reading from Sat 10 PM · NWS gauge page

Bayou Lafourche below Donaldsonville

0.8 mi

Level: 6.7 ft

Reading from Sat 10:45 PM · NWS gauge page

Amite River Basin at Panama Canal at Hwy 44 near Gonzales

6.8 mi

Level: 1.7 ft

Reading from Sat 10 PM · NWS gauge page

Bayou Lafourche above Napoleonville

7.4 mi

Level: 4.6 ft

Reading from Sat 10 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Cooling this week

About 89% more cooling than a typical week.

This week 9Typical 5

Cooling degree days, base 65°F

Comfort

Comfortable, non-humid air (dew point 55°F).

Open the windows?

Sun, 9:00 AM–3:00 PM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

DONALDSONVILLE 4 SW · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° warmer than typical.

Last 7 days vs normal

On average 3°2° colder than normal (daily mean temperature).

−6°−4°MonOct 19
−4°−2°TueOct 20
−4°−2°WedOct 21
−2°−1°ThuOct 22
±0°FriOct 23
+1°±0°SatOct 24
—SunOct 25

Donaldsonville weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 11 h 12 min; Losing 1 min 43 s a day; shortest Dec 21, 59 min less
Golden hour: 5:50–6:38 PM; Morning 6:57–7:44 AM
Blue hour: 6:38–6:48 PM; Morning 6:47–6:57 AM; first light 6:47 AM

Stars tonight? Fair

Mostly clear 11:48 PM–6 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

99% lit · growing

Today: sets 5:31 AM · rises 5:19 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Donaldsonville.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Donaldsonville, LA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Mississippi River at Donaldsonville

Bayou Lafourche below Donaldsonville

Amite River Basin at Panama Canal at Hwy 44 near Gonzales

Bayou Lafourche above Napoleonville

For your home

Cooling this week

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon