Weather in DeKalb, United States 🇺🇸
As of now, DeKalb is 24°C and sunny, feeling like 24°C. Humidity sits at 79% and winds are near 18 km/h, and the UV index is 0 (low). In the days ahead, expect temperatures in DeKalb from about 22°C to 31°C. ⚠️ Heat Advisory issued September 2 at 12:55AM CDT until September 2 at 9:00PM CDT by NWS Chicago IL
Hourly Forecast for DeKalb
14-Day Forecast for DeKalb
Additional Forecasts for DeKalb
Air Quality
Historical Weather
Weather Forecasts for Other Cities in United States
Browse Weather in United States by cities in alphabetical order:
Best Time to Be Outside in DeKalb Today
The most comfortable window in DeKalb today looks like 08:00 to 11:00, when it is around 27°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in DeKalb
What is the temperature in DeKalb right now?
The current temperature in DeKalb is 24°C (74°F), sunny (feels like 24°C).
What's the weather like in DeKalb right now?
Right now DeKalb has Sunny, humidity 79%, wind 18 km/h SSW.
What is today's forecast for DeKalb?
Today in DeKalb: high 30°C, low 23°C, sunny. Chance of rain: 10%.
What is the 7-day weather forecast for DeKalb?
Daily highs and lows for DeKalb:
- 2026-09-02: 30°C / 23°C
- 2026-09-03: 28°C / 23°C
- 2026-09-04: 31°C / 22°C
- 2026-09-05: 29°C / 22°C
- 2026-09-06: 28°C / 18°C
- 2026-09-07: 26°C / 18°C
- 2026-09-08: 19°C / 14°C
Is it going to rain in DeKalb today?
There is a 10% chance of rain in DeKalb today.
What is the wind speed in DeKalb right now?
Wind in DeKalb is currently 18 km/h (11 mph) from the SSW.
What is the UV index in DeKalb right now?
The UV index in DeKalb is currently 0.1 (low). Sun protection is recommended when the index is 3 or higher.