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Princeton weather forecast

Florida, United States · New_York time · 25.54°, -80.41°

Extreme heat today: feels-like temperatures up to 41 °C.

Extreme heat today: feels-like temperatures up to 41 °C.

Derived advisory — not an official warning

Current conditions · 8:30 PM local

Current conditions in Princeton

86°F

Overcast

Feels like 84°F

Humidity
91%
Wind
4 mph ESE
Gusts
7 mph
UV index
0
Visibility
8.7 mi

Right now

Right now in Princeton, it's overcast with the temperature at 30 °C. It feels warmer than it reads, more like 35 °C. Wind is from the ESE at 7 km/h. Humidity stands at 73% with sea-level pressure near 1018 hPa.

At a glance

Today

95° / 75°

Thunderstorm · 31% chance of rain

Tomorrow

90° / 77°

Thunderstorm · extreme UV

Upcoming · to Saturday

92° / 76°

Highs 92°, lows 76°. The most active day looks like Saturday, when rain chances peak at 50%.

Next 3 days

Today looks like thunderstorm; temperatures run from 24 °C up to 35 °C. Rain chance peaks at 31%. Tomorrow looks like thunderstorm; temperatures run from 25 °C up to 32 °C. Expect thunderstorm Tuesday, between 24 °C and 33 °C.

Today

Sun, Jun 21

Thunderstorm

95°75°

Rain chance
31%
Precip
0 in
Max wind
13 mph

Tomorrow

Mon, Jun 22

Thunderstorm

90°77°

Rain chance
8%
Precip
0 in
Max wind
12 mph

Tuesday

Tue, Jun 23

Thunderstorm

92°76°

Rain chance
14%
Precip
0.1 in
Max wind
15 mph

Next 48 hours

  1. 12 AM76°31%5 mph
  2. 1 AM76°13%3 mph
  3. 2 AM76°5%1 mph
  4. 3 AM76°1%3 mph
  5. 4 AM75°0%2 mph
  6. 5 AM75°0%2 mph
  7. 6 AM75°0%1 mph
  8. 7 AM75°1%3 mph
  9. 8 AM79°0%1 mph
  10. 9 AM84°0%5 mph
  11. 10 AM86°0%5 mph
  12. 11 AM88°0%4 mph
  13. 12 PM89°1%5 mph
  14. 1 PM90°1%6 mph
  15. 2 PM89°1%8 mph
  16. 3 PM93°2%9 mph
  17. 4 PM94°3%11 mph
  18. 5 PM95°4%13 mph
  19. 6 PM89°10%8 mph
  20. 7 PM88°19%1 mph
  21. 8 PM87°12%4 mph
  22. 9 PM85°10%4 mph
  23. 10 PM80°8%10 mph
  24. 11 PM79°5%3 mph
  25. 12 AM79°3%3 mph
  26. 1 AM78°1%1 mph
  27. 2 AM78°1%1 mph
  28. 3 AM78°1%4 mph
  29. 4 AM78°1%4 mph
  30. 5 AM77°1%2 mph
  31. 6 AM77°1%1 mph
  32. 7 AM77°1%1 mph
  33. 8 AM83°1%4 mph
  34. 9 AM86°1%9 mph
  35. 10 AM88°1%11 mph
  36. 11 AM89°2%12 mph
  37. 12 PM90°3%11 mph
  38. 1 PM90°5%12 mph
  39. 2 PM90°6%12 mph
  40. 3 PM90°8%12 mph
  41. 4 PM90°7%11 mph
  42. 5 PM89°5%10 mph
  43. 6 PM88°3%10 mph
  44. 7 PM87°2%9 mph
  45. 8 PM85°2%5 mph
  46. 9 PM83°2%3 mph
  47. 10 PM82°2%3 mph
  48. 11 PM81°2%1 mph

In depth

Across Princeton right now you'll find overcast and a temperature of 30 °C, with the apparent temperature at 35 °C. Today's forecast calls for thunderstorm, topping out near 35 °C before falling back to 24 °C overnight. Winds blow mainly from the ESE around 21 km/h, with gusts up to 22 km/h. Daytime highs hold fairly steady this week, staying within 32 to 35 °C. Rain is in the picture on Tuesday, Wednesday, Friday and beyond, with roughly 11 mm expected in total across the week. Tomorrow brings thunderstorm with a high of 32 °C and a 8% chance of precipitation. The UV index reaches 9 today, so sun protection is sensible during the middle of the day. With the apparent temperature pushing into heat-stress territory, limit strenuous outdoor activity in the afternoon and stay hydrated. Sunrise comes at 06:31 and sunset at 20:15, giving 13.7 hours of daylight. Current humidity sits at 73% with pressure near 1018 hPa. Looking further out, Thursday shows thunderstorm with a high around 33 °C, while Saturday ends the week at 33 °C.

Air quality

72

Moderate

US AQI · European AQI 50

Air quality in Princeton is currently moderate, with a US AQI of 72 (European AQI 50). The dominant pollutant right now is ozone. Unusually sensitive people should consider easing prolonged outdoor exertion. Fine particulate matter (PM2.5) measures 8.7 µg/m³.

Pollutants

PM2.5
8.7 µg/m³
PM10
12.2 µg/m³
Ozone (O₃)
57 µg/m³
NO₂
1.3 µg/m³
SO₂
0.4 µg/m³
CO
119 µg/m³
Dust
0 µg/m³

Sun & UV

Sunrise
6:31 AM
Sunset
8:15 PM
Daylight
13h 44m
Max UV
9 Very high

Wind

Wind
4 mph
Gusts
7 mph
Direction
ESE (111°)

Farming weather

Soil temperatures today read surface 26.8 °C, 6 cm 28.8 °C, 18 cm 31.8 °C, 54 cm 29.9 °C. Soil moisture sits at 0-1 cm at 0.21 m³/m³, 3-9 cm at 0.17 m³/m³, 27-81 cm at 0.15 m³/m³. For maize, the root-zone reading is below the ideal 0.2-0.35 m³/m³ band. Reference evapotranspiration totals 42 mm against only 11 mm of expected rain — a 32 mm deficit, so irrigation will be needed this week. A suitable spraying window opens around 07:00 on 2026-06-21, with winds at or below 15 km/h and no rain expected. Heat stress is likely for wheat with highs reaching 35 °C (threshold 32 °C). Projected growing degree days over the next week: maize 135, wheat 174.

Topsoil moisture
0.187 m³/m³
Soil temp
79°F
ET₀ today
6.33 mm
Spray window
~5:00
Rain (next 7d)
0.4 in
Wind
4 mph
Humidity
91%

Full farming outlook for Princeton →

Advisory summary

Weather alerts for Princeton (derived from forecast data, not official warnings): Extreme heat today: feels-like temperatures up to 41 °C.

All data for Princeton
Every forecast variable for Princeton with human-readable labels
VariableValue
CityPrinceton, Florida, United States
Coordinates25.53844, -80.40894
Elevation3 m
TimezoneAmerica/New_York
Population39,308
Observed at (local)8:30 PM
Temperature (2 m)86°F
Apparent temperature84°F
Relative humidity (2 m)91%
Dew point (2 m)73°F
Precipitation (last hour)0 in
Rain0 in
Showers0 in
Snowfall0 in
Weather code (WMO)3
Cloud cover100%
Surface pressure30 inHg
Sea-level pressure30 inHg
Wind speed (10 m)4 mph
Wind gusts (10 m)7 mph
Wind direction (10 m)111° (ESE)
Visibility8.7 mi
UV index0
Day / nightNight
Today max / min95°F / 75°F
Today feels-like max / min105°F / 83°F
Today precipitation sum0 in
Today rain sum0 in
Today snowfall sum0 in
Today max precip probability31%
Today max wind / gusts13 mph / 14 mph
Dominant wind direction117° (ESE)
Sunrise / sunset6:31 AM / 8:15 PM
Daylight duration13h 44m
Sunshine duration13h 25m
Max UV index9
Reference evapotranspiration (ET₀)6.33 mm
Topsoil moisture (0–1 cm)0.187 m³/m³
Surface soil temperature79°F
US AQI72
European AQI50
PM2.58.7 µg/m³
PM1012.2 µg/m³
Ozone (O₃)57 µg/m³
Nitrogen dioxide (NO₂)1.3 µg/m³
Sulphur dioxide (SO₂)0.4 µg/m³
Carbon monoxide (CO)119 µg/m³
Dust0 µg/m³

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Frequently asked questions

Will it rain in Princeton tomorrow?

Rain is unlikely in Princeton tomorrow; the precipitation chance stays around 8%.

What is the temperature in Princeton today?

Today Princeton sees thunderstorm with a high of 35 °C and a low of 24 °C.

How hot will it be in Princeton tomorrow?

Tomorrow's high in Princeton is forecast at 32 °C with thunderstorm.

Is it windy in Princeton today?

No, not especially; gusts only reach up to 22 km/h today.

What is the UV index in Princeton today?

The UV index peaks at 9 today, which is very high.

What time is sunrise and sunset in Princeton today?

The sun rises at 06:31 and sets at 20:15 local time.

Is the air quality in Princeton good today?

Air quality is moderate right now, with a US AQI reading of 72.