claude-sonnet-5-5 Analysis · Apr 21, 2026
Safe
LOW RISK
claude-sonnet-5-5
80% confidence
Summary
Dry, sunny and calm conditions through the afternoon and evening, with only a slight chance of light rain showers after about 11pm. The Freeze Warning expired at 9:00 AM EDT, and the hourly data starts at noon, so the morning is not covered.
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 (lows near 22F) was in effect until 9:00 AM EDT; black ice or frost on roads early in the morning is possible, though no precipitation data confirms wet surfaces
- 02 Hourly forecast from 12 PM to 9 PM shows sunny to mostly cloudy skies with precipitation chance of 1-4%
- 03 Temperatures of 47-55F from noon onward are well above freezing, so ice risk is minimal
- 04 Winds are light at 3-9 mph from the south, with no gusts reported, so crosswind risk is low
- 05 Rain showers become likely after 11 PM (23% hourly, 55-60% overnight) but amounts are under a tenth of an inch, causing only slightly slick roads
- 06 No visibility data was provided, so fog or glare cannot be assessed; low sun angle glare is possible but not in the data
Confidence
80%
Recommendation
Best morning window is 10:00 AM to 12:00 PM, after the freeze warning ended at 9:00 AM and temperatures have warmed (47F by noon); watch for lingering frost on shaded or bridge surfaces before then. Best evening window is 4:00 PM to 8:00 PM, with dry roads and mild temperatures. Avoid late-night driving after 11 PM when rain showers begin to develop.