| Latest RWIS Atmospheric Data as of Sun Apr 19 07:34 AM 2026 |
| O B S |
Location | Elev. (feet) |
Date | Time | Temp (ºF) |
Dew Point (ºF) |
Rel Hum (%) |
Wind Dir |
Wind Speed (mph) |
Peak Wind (mph) |
Sea-Level Pressure (in. Hg) |
Precip and Intensity |
Precip Rate (in/hr) |
Visibility (mi) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Ashland I-93 | 600 | Sun 19-Apr-2026 | 07:24AM EDT | 43.2 | 42.8 | 99 | SSW | 2.2 | 4.7 | 29.13 | LGT Precip | 0.400 | 1.2 |
| Bow | 351 | Sun 19-Apr-2026 | 07:25AM EDT | ||||||||||
| Canterbury I-93 | 585 | Sun 19-Apr-2026 | 07:25AM EDT | 43.2 | 42.8 | 99 | SE | 2.2 | 5.1 | 29.18 | 1.2 | ||
| Derry I-93 | 247 | Sun 19-Apr-2026 | 07:24AM EDT | 44.6 | 44.8 | 100 | E | 2.2 | 3.8 | 29.52 | LGT Precip | 0.400 | 0.7 |
| Echo Lake | 1856 | Sun 19-Apr-2026 | 07:24AM EDT | 43.9 | 42.8 | 96 | 30.90 | ||||||
| Epping Rt.101 | 141 | Sun 19-Apr-2026 | 07:24AM EDT | 43.3 | 45.3 | ||||||||
| Hampton Rt 101 | Sun 19-Apr-2026 | 07:25AM EDT | 44.4 | 44.4 | SSE | 1.1 | 3.4 | 29.80 | None | 0.000 | 1.2 | ||
| I-89 SB MM 31.4 Sutton/New London | Sun 19-Apr-2026 | 07:25AM EDT | 41.7 | 41.7 | 100 | SW | 4.3 | 8.3 | 28.55 | LGT Precip | 0.000 | 0.2 | |
| LaFayette | 1768 | Sun 19-Apr-2026 | 07:24AM EDT | 42.1 | 43.2 | SSW | 3.4 | 4.9 | 30.95 | LGT Precip | 0.000 | 0.4 | |
| Lincoln Exit 33 | 916 | Sun 19-Apr-2026 | 07:24AM EDT | 43.7 | 45.3 | WSW | 0.9 | 2.7 | LGT Precip | 0.000 | 1.2 | ||
| Littleton I-93 | 869 | Sun 19-Apr-2026 | 07:24AM EDT | 46.4 | 45.7 | 97 | NE | 1.3 | 2.2 | 28.82 | LGT Precip | 0.400 | 1.2 |
| Lost River Rt. 112 | 1822 | Sun 19-Apr-2026 | 07:24AM EDT | 41.4 | 49.1 | SE | 3.1 | 9.4 | 27.86 | LGT Precip | 0.400 | 0.6 | |
| Manchester I-293 | 244 | Sun 19-Apr-2026 | 07:25AM EDT | 44.4 | 44.1 | 99 | SSE | 4.7 | 6.7 | 29.51 | None | 0.000 | 1.2 |
| Nashua FEE Exit 2 | 287 | Sun 19-Apr-2026 | 07:24AM EDT | 45.1 | 44.8 | 99 | |||||||
| New Ipswich Rt 124 | 1075 | Sun 19-Apr-2026 | 07:24AM EDT | 43.9 | 44.4 | 100 | SE | 1.6 | 4.7 | LGT Precip | 0.000 | 0.2 | |
| Newington RT 16 | 30 | Sun 19-Apr-2026 | 07:24AM EDT | 44.2 | 42.8 | 95 | SSE | 4.3 | 5.1 | 29.87 | None | 0.000 | 12.4 |
| Portsmouth I-95 | Sun 19-Apr-2026 | 07:25AM EDT | 43.9 | 43.3 | 98 | S | 3.4 | 4.5 | 29.75 | None | 0.000 | 1.2 | |
| Roxbury-Sullivan Rt 9 | Sun 19-Apr-2026 | 07:25AM EDT | 46.6 | 46.6 | NE | 1.3 | 5.1 | 28.70 | None | 0.000 | 1.2 | ||
| Rt. 4 WB Northwood | Sun 19-Apr-2026 | 07:25AM EDT | 42.3 | 42.1 | 100 | SE | 3.1 | 6.0 | 29.16 | None | 0.000 | 1.2 | |
| Rt. 16 SB Exit 17 Milton | Sun 19-Apr-2026 | 07:25AM EDT | 42.3 | 42.3 | 100 | SE | 1.1 | 3.6 | 29.34 | None | 0.000 | 1.2 | |
| Rt. 16 SB MM 32 Milton | Sun 19-Apr-2026 | 07:25AM EDT | 42.3 | 42.3 | 100 | ENE | 0.9 | 2.0 | 29.21 | None | 0.000 | 1.2 | |
| Rt.16 SB Rochester | Sun 19-Apr-2026 | 02:35AM EDT | 42.1 | 42.1 | 100 | SSE | 2.5 | 3.6 | 29.67 | None | 0.000 | 1.2 | |
| Rt.16 SB Wakefield | Sun 19-Apr-2026 | 07:25AM EDT | 41.0 | 41.0 | NE | 0.9 | 2.0 | 28.82 | LGT Precip | 0.400 | 1.2 | ||
| Rt. 101 WB Exeter MM 128.4 | Sun 19-Apr-2026 | 07:25AM EDT | 43.7 | 43.7 | 100 | NE | 1.3 | 3.1 | 29.70 | None | 0.000 | 0.3 | |
| Rt. 101 WB Peterborough | Sun 19-Apr-2026 | 07:25AM EDT | 43.0 | 43.0 | 100 | SE | 2.5 | 5.8 | 28.28 | None | 0.000 | 1.0 | |
| Rt.106 Loudon | Sun 19-Apr-2026 | 07:25AM EDT | 43.2 | 42.8 | 99 | SW | 1.3 | 3.6 | 29.20 | None | 0.000 | 1.2 | |
| Rt. 115 Jefferson | Sun 19-Apr-2026 | 07:25AM EDT | 47.3 | 47.3 | ESE | 2.5 | 3.4 | 28.16 | LGT Precip | 0.000 | 0.4 | ||
| Rt 16 NB Ossipee | Sun 19-Apr-2026 | 07:25AM EDT | 42.8 | 42.8 | 100 | ESE | 1.3 | 2.0 | 29.34 | LGT Precip | 0.000 | 1.2 | |
| Salem I-93 | 85 | Sun 19-Apr-2026 | 07:24AM EDT | 45.5 | 46.4 | S | 3.4 | 5.6 | 29.64 | LGT Precip | 0.000 | 1.2 | |
| Sanbornton I-93 | 720 | Sun 19-Apr-2026 | 07:25AM EDT | 42.4 | 42.4 | 100 | ESE | 1.6 | 3.1 | 29.00 | None | 0.000 | 1.2 |
| Springfield I-89 | 1402 | Sun 19-Apr-2026 | 07:24AM EDT | 41.5 | 42.4 | NNW | 6.9 | 19.5 | 29.68 | LGT Precip | 0.000 | 0.2 | |
| Warner I-89 | 413 | Sun 19-Apr-2026 | 07:25AM EDT | 43.9 | 43.9 | 100 | N | 1.3 | 3.4 | 29.29 | None | 0.000 | 1.2 |
| Westmoreland Rt. 9 | 1145 | Sun 19-Apr-2026 | 07:24AM EDT | 46.6 | 46.8 | 100 | SW | 2.9 | 6.3 | 26.64 | None | 0.000 | 0.5 |
| Woodstock I-93 | 680 | Sun 19-Apr-2026 | 07:25AM EDT | 43.7 | 43.5 | 99 | S | 1.8 | 3.1 | 29.04 | None | 0.000 | 1.2 |
- This page displays the latest atmospheric data received from the NHDOT Environmental Sensor Stations (ESS) located on various NH highways and NHDOT facilities that provide such data.
- Clicking the
icon to the left of a site, will display all of the observations for that site for the current day.
- The Lafayette site is located near the campground in Franconia Notch. The Echo Lake site is located just north of the Franconia Notch.
- At most sites, the highest reported visibility will be 1.1 miles. Exceptions are as follows: 1.2 miles for Echo Lake, LaFayette, Littleton and New Ipswich; Salem and Ashland have newer sensors and can report visibility as high as 7.1 miles; and Dover can report visibilities up to 12.4 miles.
- Precipitation can be listed as "None" for no precipitation, "Recent" if it just recently ended, or "Now" if it just started.
- When precipitation has been detected and an intensity has been determined, precipitation intensities are listed as "LGT" for light or "MOD" for moderate or "HVY" for heavy.
- The entry, "Precip", following a reported intensity usually means rain or drizzle or an indeterminate type of precipitation.
- When snow/ice has been identified by the sensor, the precipitation type following the intensity will be listed as "Snow".
- Missing or not reported data are left as blank entries.
- This page will automatically refresh every 5 minutes.