* WHAT...Sub-freezing temperatures as low as 22. * WHERE...Portions of central, northern, northwest, and southern New Jersey and east central and southeast Pennsylvania. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Take steps now to protect tender plants from the cold.
Tuesday, April 21, 2026
47°F
Sunny
High / Low
56° / 42°
Wind
S 3 mph
Precip.
1%
Humidity
25%
AI Consensus
Safe
low risk
14 of 15 models say safe
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✗
✓
✓
✓
✓
Hourly
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
Precipitation probability
Today & Tonight
Today
56°
Tonight
42°
Sunny, with a high near 56. West wind 2 to 8 mph.
Model Analyses
✓
@cf/meta/llama-3.3-70b-instruct-fp8-fast
low
Safe
✓
@cf/moonshotai/kimi-k2.5
low
Safe
✓
@cf/nvidia/nemotron-3-120b-a12b
medium
Safe
✓
claude-haiku-4-5
low
Safe
✓
claude-opus-4-6
low
Safe
✓
claude-opus-4-7
low
Safe
✓
claude-sonnet-4-6
low
Safe
✓
gemini-3-flash-preview
low
Safe
✓
gemini-3.1-flash-lite-preview
low
Safe
✓
gemini-3.1-pro-preview
low
Safe
✗
gemma-4-31b-it
medium
Not Safe
✓
gpt-5-mini
medium
Safe
✓
gpt-5.1
low
Safe
✓
gpt-5.4
medium
Safe
✓
gpt-5.4-mini
low
Safe