AI Analysis ยท Apr 21, 2026
Safe
LOW RISK
claude-haiku-4-5
92% confidence
Summary
April 21st features sunny to mostly sunny conditions through mid-afternoon with temperatures rising from 47F to 56F and light winds; freeze warning expired at 9am, and rain showers remain unlikely until after 11pm, making daytime and early evening driving safe.
Hourly Forecast
12 PM 1%
3 mph
1 PM 1%
5 mph
2 PM 1%
6 mph
3 PM 2%
7 mph
4 PM 2%
7 mph
5 PM 3%
8 mph
6 PM 4%
8 mph
7 PM 4%
8 mph
8 PM 3%
9 mph
9 PM 10%
8 mph
10 PM 13%
8 mph
11 PM 23%
8 mph
Key Factors
- 01 Freeze warning expired at 9:00 AM EDT, eliminating ice and frost hazards for most of the day
- 02 Sunny conditions with excellent visibility throughout daytime hours
- 03 Temperatures well above freezing during daylight (47-56F), rising through afternoon
- 04 Light to moderate winds (2-8 mph daytime, 8-9 mph evening) present no hazard
- 05 Negligible precipitation probability until after 11pm (60% rain showers likely only after 11pm)
Recommendation
Optimal driving windows: Morning hours from 9am-11am when freeze warning has expired and visibility is excellent; Evening driving possible until 10pm, after which increasing chance of rain showers (23% probability at 11pm, rising to 60% after 11pm) makes conditions less favorable. Avoid driving after 11pm tonight if rain develops.